# Grammage

Grammage and basis weight, in the pulp and paper industry, are the area density of a paper product, that is, its mass per unit of area. Two ways of expressing the area density of a paper product are commonly used:
* Expressed in grams (g) per square metre (g/m$^2$), regardless of its thickness (caliper) (known as grammage). This is the measure used in most parts of the world. It is often notated as gsm on paper product labels and spec sheets.
* Expressed in terms of the mass per number of sheets of a specific paper size (known as basis weight). The convention used in the United States and a few other countries using US-standard paper sizes is pounds (lb) per ream of 500 (or in some cases 1000) sheets of a given (raw, still uncut) basis size. The traditional British practice is pounds per ream of 480, 500, 504, or 516 sheets of a given basis size. Japanese paper is expressed as the weight in kilograms (kg) per 1,000 sheets.

## Grammage

In the metric system, the mass per unit area of all types of paper and paperboard is expressed in terms of grams per square metre (g/m$^2$). This quantity is commonly called grammage in both English and French, though printers in most English-speaking countries still refer to the "weight" of paper.
    ${\text{Grammage}}={\frac {{\text{mass}}{\text{ (g)}}}{{\text{length}}{\text{ }}({\text{m}})\times {\text{width}}{\text{ }}({\text{m}})}}$
Typical office paper has 80 g/m$^2$ (0.26 oz/sq ft), therefore a typical A4 sheet (1⁄16 of a square metre) weighs 5 g (0.18 oz). The abbreviation "gsm" instead of the standard g/m$^2$ symbol is also widely encountered in English-speaking countries.
Typically grammage is measured in paper mill on-line by a quality control system and verified by laboratory measurement.

## Basis weight

Basis weight of paper is the density of paper expressed in terms of the mass (in pound) of a ream of paper of given dimensions and a sheet count. The American and the traditional British systems are largely the same, with only minor differences: the paper dimensions and the sheet count are different.

### United States

In the US system, the weight is specified in avoirdupois pounds and the sheet count of a paper ream is usually 500 sheets. However, the mass specified is not the mass of the ream that is sold to the customer. Instead, it is the mass of the uncut "basis ream" in which the sheets have some larger size (parent size). Often, that is a size used during the manufacturing process before the paper is cut to the dimensions in which it is sold. So, to compute the mass per area, one must know
* the mass of the basis ream,
* the number of sheets in that ream, and
* the dimensions of an "uncut" sheet in that ream.
The standard dimensions and sheet count of a ream vary according to the type of paper. These "uncut" basis sizes are not normally labelled on the product, are not formally standardized, and therefore have to be guessed or inferred somehow from trading practice. Historically, this convention is the product of pragmatic considerations such as the size of a sheet mold.
By using the same basis sheet size for the same type of paper, consumers can easily compare papers of differing brands. Twenty-pound bond paper is always lighter and thinner than 32-pound bond, no matter what its cut size, and 20-pound bond letter size and 20-pound bond legal size papers are the same weight paper with a different cut size.
However, a sheet of common copy paper that has a basis weight of 20 pounds (9.1 kg) does not have the same mass as the same size sheet of coarse paper (newsprint). In the former case, the standard ream is 500 sheets of 17-by-22-inch (432 by 559 mm) paper, and in the latter, 500 sheets of 24-by-36-inch (610 by 914 mm) paper. Here are some basic ream sizes for various types of paper. Units are inches except where noted.
    Paper type Paper size (inches) Sheets per ream Bond, writing, ledger17× 22500 Manuscript cover18× 31500 Blotting19× 24500 Box cover20× 24500 Cover20× 26500 or 1000 Watercolour22× 30500 Bristol and tag22+1⁄2× 28+1⁄2500 Tissue24× 36480 Newsprint24× 36500 Hanging, waxing, bag, etc.24× 36500 Book, text, offset25× 38500 Index bristol25+1⁄2× 30+1⁄2500 Paperboard (all types)12× 121000 (1000 sq ft per ream)
Sheets 17 by 22 inches (432 by 559 mm) can be cut into four 8+1⁄2-by-11-inch (216 by 279 mm) sheets, a standard for business stationery known conventionally as letter sized paper. So, the 17-by-22-inch (432 by 559 mm) ream became commonly used. The 25-by-38-inch (635 by 965 mm) book-paper ream developed because such a size can easily be cut into sixteen 6-by-9-inch (152 by 229 mm) book sized sheets without significant waste (nominally 6+1⁄4-by-9+1⁄2-inch (159 by 241 mm) before trimming and binding).
Early newsprint presses printed sheets 2 by 3 feet (610 by 914 mm) in size, and so the ream dimensions for newsprint became 24 by 36 inches (610 by 914 mm), with 500 sheets to a ream. Newsprint was made from ground wood pulp, and ground wood hanging paper (wallpaper) was made on newsprint machines. Newsprint was used as wrapping paper, and the first paper bags were made from newsprint. The newsprint ream standard also became the standard for packaging papers, even though in packaging papers kraft pulp, rather than ground wood, was used for greater strength.
Paper weight is sometimes stated using the "#" symbol. For example, "20#" means "20 pounds per basis ream of that kind of paper". When the density of a ream of paper is given in pounds, it is often accompanied by its "M weight" (M is 1000 in Roman numerals). The M weight is the weight (in pounds) of 1000 cut sheets. Paper suppliers will often charge by M weight, since it is always consistent within a specific paper size, and because it allows a simple weight calculation for shipping charges.
For example, a 500-sheet ream of 20# 8+1⁄2-by-11-inch (216 by 279 mm) copy paper may be specified "10 M". 1000 cut sheets (or two reams) will weigh 10 lb (4.5 kg), half of the four reams of cut paper resulting from the 20# basis ream of 17-by-22-inch (432 by 559 mm) paper.

### United Kingdom
#### Overview of the traditional British system

Like the American system, the traditional British system also involves the use of basis weight to express the area density of paper (and, indirectly, paper thickness) in the course of buying and selling paper. The British paper industry exclusively used basis weight before 1968.
In the traditional British system, basis weight is also expressed in terms of the weight of an imaginary ream of paper of a certain size. The underlying concept is that a ream of paper of the stated paper size and of the same thickness as the paper the parties are dealing with would have the stated weight. The weight is expressed in pound. As to paper sizes (basis sizes), they can, theoretically, be any sizes, but, by custom, a number of common sizes emerged. In the 1960s, even the metric A1 and A2 had been used as basis sizes alongside the British ones.
The following are common British basis sizes (sizes of British uncut paper):
Common British basis sizes :
| Note 1: The Italicised writing‑paper and printing‑paper sizes were in use only prior to the 1925 standardisation of writing‑paper and printing‑paper sizes. The 1925 standardisation did not apply to wrapping‑paper sizes. Note 2: The underlined writing‑paper and printing‑paper sizes were in use after the 1925 standardisation but were not adopted as standard sizes by British Standards Institution specification number 730 of 1937. Note 3: The wrapping‑paper sizes marked with ‘*’ were not adopted as standard sizes by British Standards Institution specification number 730 of 1937. ||
| Writing paper ||
| Atlas | 26 in × 34 in |
| Copy | 16⁠1/2⁠ in × 20 in |
| Double elephant (adopted by British Standards Institution specification number 730 of 1937 but not the 1925 standardisation) | 27 in × 40 in |
| Double imperial | 30 in × 44 in |
| Double large post | 21 in × 33 in |
| Double post (adopted by British Standards Institution specification number 730 of 1937 but not the 1925 standardisation) | 19 in × 30 in (prior to re‑definition by British Standards Institution specification number 730 of 1937, 19 in × 30⁠1/2⁠ in) |
| Double pott | 15 in × 25 in |
| Double small demy (known as ‘double demy’ before the 1925 standardisation) | 20 in × 31 in |
| Double small foolscap (known as ‘double foolscap’ before British Standards Institution specification number 730 of 1937) (‘foolscap’ is sometimes shortened to ‘’cap’ or ‘cap’) | 16⁠1/2⁠ in × 26⁠1/2⁠ in |
| Double small royal (known as ‘double royal’ before the 1925 standardisation) | 24 in × 38 in |
| Elephant | 23 in × 28 in |
| Imperial | 22 in × 30 in |
| Large post | 16⁠1/2⁠ in × 21 in |
| Pinched post | 14⁠3/4⁠ in × 18⁠1/2⁠ in |
| Post (adopted by British Standards Institution specification number 730 of 1937 but not the 1925 standardisation) | 15 in × 19 in (prior to re‑definition by British Standards Institution specification number 730 of 1937, 15⁠1/4⁠ in ×19 in) |
| Pott | 12⁠1/2⁠ in × 15 in |
| Sheet‑and‑a‑half small foolscap (known as ‘sheet‑and‑a‑half foolscap’ before British Standards Institution specification number 730 of 1937) (‘foolscap’ is sometimes shortened to ‘’cap’ or ‘cap’) | 13⁠1/4⁠ in × 24⁠3/4⁠ in (before the 1925 standardisation, 13⁠1/4⁠ in × 24⁠1/2⁠ in) |
| Sheet‑and‑a‑third small foolscap (introduced by the 1925 standardisation) (known as ‘sheet‑and‑a‑third foolscap’ before British Standards Institution specification number 730 of 1937) (‘foolscap’ is sometimes shortened to ‘’cap’ or ‘cap’) | 13⁠1/4⁠ in × 22 in |
| Small demy (known as ‘demy’ before the 1925 standardisation) | 15⁠1/2⁠ in × 20 in |
| Small foolscap (known as ‘foolscap’ before British Standards Institution specification number 730 of 1937) (‘foolscap’ is sometimes shortened to ‘’cap’ or ‘cap’) | 13⁠1/4⁠ in × 16⁠1/2⁠ in |
| Small medium (known as ‘medium’ before the 1925 standardisation) | 17⁠1/2⁠ in × 22 in |
| Small post (introduced by the 1925 standardisation) | 14⁠1/2⁠ in × 18⁠1/2⁠ in |
| Small royal (known as ‘royal’ before the 1925 standardisation) | 19 in × 24 in |
| Super royal | 19 in × 27 in (before the 1925 standardisation, 19⁠1/4⁠ in × 27 in) |
| Printing paper ||
| Copy | 16⁠1/2⁠ in × 20 in |
| Crown | 15 in × 20 in |
| Demy | 17⁠1/2⁠ in × 22⁠1/2⁠ in |
| Double crown | 20 in × 30 in |
| Double demy | 22⁠1/2⁠ in × 35 in |
| Double elephant (also known as ‘double large royal’) (adopted by British Standards Institution specification number 730 of 1937 but not the 1925 standardisation) | 27 in × 40 in |
| Double globe | 28 in × 38 in |
| Double imperial | 30 in × 44 in |
| Double foolscap (known as ‘double large foolscap’ after the 1925 standardisation and before being re‑named by British Standards Institution specification number 730 of 1937) (‘foolscap’ is sometimes shortened to ‘’cap’ or ‘cap’) | 17 in × 27 in |
| Double large post | 21 in × 33 in |
| Double medium | 23 in × 36 in |
| Double post (adopted by British Standards Institution specification number 730 of 1937 but not the 1925 standardisation) | 19 in × 30 in (prior to re‑definition by British Standards Institution specification number 730 of 1937, 19⁠1/4⁠ in × 31⁠1/2⁠ in) |
| Double pott | 15 in × 25 in |
| Double royal | 25 in × 40 in |
| Elephant | 23 in × 28 in |
| Foolscap (known as ‘large foolscap’ after the 1925 standardisation and before being re‑named by British Standards Institution specification number 730 of 1937) (‘foolscap’ is sometimes shortened to ‘’cap’ or ‘cap’) | 13⁠1/2⁠ in × 17 in |
| Imperial | 22 in × 30 in |
| Large post | 16⁠1/2⁠ in × 21 in |
| Large royal (introduced by the 1925 standardisation) | 20⁠1/2⁠ in × 27 in (prior to re‑definition by British Standards Institution specification number 730 of 1937, 20 in × 27 in) |
| Medium | 18 in × 23 in |
| Music demy | 14⁠3/8⁠ in × 20⁠3/4⁠ in |
| Post (adopted by British Standards Institution specification number 730 of 1937 but not the 1925 standardisation) | 15 in × 19 in (prior to re‑definition by British Standards Institution specification number 730 of 1937, 15⁠1/2⁠ in × 19⁠1/4⁠ in) |
| Pott | 12⁠1/2⁠ in × 15 in |
| Quad crown | 30 in × 40 in |
| Quad demy | 35 in × 45 in |
| Quad foolscap (known as ‘quad large foolscap’ after the 1925 standardisation and before being re‑named by British Standards Institution specification number 730 of 1937) (‘foolscap’ is sometimes shortened to ‘’cap’ or ‘cap’) | 27 in × 34 in |
| Quad globe | 38 in × 56 in |
| Quad pott | 25 in × 30 in |
| Quad royal | 40 in × 50 in |
| Royal | 20 in × 25 in |
| Super royal | 20⁠1/2⁠ in × 27⁠1/2⁠ in |
| Wrapping paper ||
| Bag cap | 20 in × 24 in (prior to re‑definition by British Standards Institution specification number 730 of 1937, 19⁠1/2⁠ in × 24 in) |
| Casing | 36 in × 46 in (across the island of Ireland, 36 in × 48 in) |
| Double bag cap* | 24 in × 39 in* |
| Double crown | 20 in × 30 in |
| Double double imperial | 45 in × 58 in |
| Double elephant* | 31 in × 46 in* |
| Double imperial | 29 in × 45 in |
| Double medium | 23 in × 36 in |
| Double small cap* | 25 in × 34 in* |
| Double small hand* | 20 in × 29 in* |
| Elephant* | 24 in × 32 in* |
| Extra large casing | 40 in × 48 in |
| Haven cap* (sometimes called ‘havon cap’) | 21 in × 26 in* |
| Imperial | 22⁠1/2⁠ in × 29 in |
| Kent cap* | 18 in × 21 in* |
| Lumber hand* | 17⁠1/2⁠ in × 22⁠1/2⁠ in* |
| Quad crown | 30 in × 40 in |
| Quad foolscap* (known as ‘quad large foolscap’ after the 1925 standardisation and before British Standards Institution specification number 730 of 1937) (‘foolscap’ is sometimes shortened to ‘’cap’ or ‘cap’) | 27 in × 34 in* |
| Quad royal* | 40 in × 50 in* |
| Quad small hand* | 30 in × 40 in* |
| Royal* | 20 in × 25 in* |
| Saddleback | 36 in × 45 in |
| Small cap* | 17 in × 25 in* |
| Small hand* | 15 in × 20 in* |
| (No name) | 20 in × 24 in* |
| (No name) | 20 in × 28 in* |
| (No name) | 21 in × 31 in* |
| (No name) | 21 in × 34 in* |
| (No name) | 22 in × 32 in* |
| (No name) | 22 in × 35 in* |
| (No name) | 23 in × 34 in* |
| (No name) | 24 in × 30 in* |
| (No name) | 24 in × 36 in* |
| (No name) | 24 in × 40 in* |
| (No name) | 26 in × 36 in* |
| (No name) | 28 in × 45 in* |
| (No name) | 29 in × 44 in* |
| (No name) | 30 in × 38 in* |
| (No name) | 30 in × 46 in* |
| (No name) | 34 in × 36 in* |
| (No name) | 36 in × 36 in* |
| (No name) | 36 in × 48 in* |
| (No name) | 38 in × 48 in* |
| (No name) | 45 in × 56 in* |
One ream in the context of basis weight (basis ream) can be 480 sheets, 500 sheets, 504 sheets, or 516 sheets: there is no fixed rule on when a certain definition was applied; however, starting from the 1950s, the trend of moving towards 500 sheets emerged.
Basis weight is commonly expressed in terms of pound per ream of paper of a certain size, in the format of ‘[number]lb [paper size]’ (e. g., ‘21lb large post’ (‘21 pounds per ream of large post paper’)). Since there are basis reams of different sizes, unless the context leaves no room for ambiguity, the number of sheets in the basis ream is also given after the paper size to avoid misunderstanding: in such case, basis weight is expressed in the format of ‘[number]lb [paper size] [number of sheets of paper in the basis ream]’, such as ‘21lb large post 480’ (‘21 pounds per 480‑sheet ream of large post paper’). In the United Kingdom, ‘#’ has never been used to express paper weight because it is called ‘hash’, instead of ‘pound’, in British English.
Demy traditionally plays the role of the default basis size for expressing basis weights: in the British paper industry, there was a device, called ‘demy scale’, that was used to measure the weights of different paper samples in pound per ream of demy paper (480‑sheet, 500‑sheet, and 516‑sheet reams).
Below is a list of common basis weights of paper stocked by British paper merchants:
Common British basis weights and their metric and American equivalents :
| Writing paper |||||
| Common British basis weights (various paper sizes and ream sizes) | Equivalent weight of a 500‑sheet ream of large post paper, a British uncut writing paper commonly used to express the basis weight of writing paper (rounded to the nearest quarter) (a common British basis for intra‑category comparison) | Equivalent weight of a 500‑sheet ream of demy paper, a British uncut printing paper commonly used by default to express the basis weight of different types of paper (rounded to the nearest quarter) (a common British basis for cross‑category comparison) | Equivalent grammage (rounded to the nearest one) | Equivalent weight of a 500‑sheet ream of bond paper, an American uncut paper commonly used to express the basis weight of paper (rounded to the nearest quarter) (a common American basis for cross‑category comparison) |
| 11lb large post 480 | 11⁠1/2⁠lb large post | 13lb demy | 46gsm | 12⁠1/4⁠lb bond |
| 11lb large post 500 | 11lb large post | 12⁠1/2⁠lb demy | 45gsm | 11⁠3/4⁠lb bond |
| 12lb large post 500 | 12lb large post | 13⁠1/2⁠lb demy | 49gsm | 13lb bond |
| 14lb large post 480 | 14⁠1/2⁠lb large post | 16⁠1/2⁠lb demy | 59gsm | 15⁠3/4⁠lb bond |
| 15lb large post 480 | 15⁠3/4⁠lb large post | 17⁠3/4⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 15lb large post 500 | 15lb large post | 17lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 15lb large post 504 | 15lb large post | 17lb demy | 60gsm | 16lb bond |
| 17lb large post 480 | 17⁠3/4⁠lb large post | 20lb demy | 72gsm | 19lb bond |
| 18lb large post 480 | 18⁠3/4⁠lb large post | 21⁠1/2⁠lb demy | 76gsm | 20⁠1/4⁠lb bond |
| 18lb large post 500 | 18lb large post | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 18lb large post 504 | 17⁠3/4⁠lb large post | 20⁠1/4⁠lb demy | 72gsm | 19⁠1/4⁠lb bond |
| 19lb large post 480 | 19⁠3/4⁠lb large post | 22⁠1/2⁠lb demy | 80gsm | 21⁠1/4⁠lb bond |
| 20lb large post 480 | 20⁠3/4⁠lb large post | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 21lb large post 480 | 22lb large post | 24⁠3/4⁠lb demy | 89gsm | 23⁠1/2⁠lb bond |
| 21lb large post 500 | 21lb large post | 23⁠3/4⁠lb demy | 85gsm | 22⁠3/4⁠lb bond |
| 21lb large post 504 | 20⁠3/4⁠lb large post | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 22lb large post 480 | 23lb large post | 26lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 22lb large post 504 | 21⁠3/4⁠lb large post | 24⁠3/4⁠lb demy | 89gsm | 23⁠1/2⁠lb bond |
| 23lb large post 480 | 24lb large post | 27⁠1/4⁠lb demy | 97gsm | 25⁠3/4⁠lb bond |
| 23lb large post 500 | 23lb large post | 26⁠1/4⁠lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 23lb large post 504 | 22⁠3/4⁠lb large post | 26lb demy | 93gsm | 24⁠1/2⁠lb bond |
| 24lb large post 480 | 25lb large post | 28⁠1/2⁠lb demy | 101gsm | 27lb bond |
| 24lb large post 504 | 23⁠3/4⁠lb large post | 27lb demy | 97gsm | 25⁠3/4⁠lb bond |
| 25lb large post 480 | 26lb large post | 29⁠1/2⁠lb demy | 106gsm | 28lb bond |
| 25lb large post 500 | 25lb large post | 28⁠1/2⁠lb demy | 101gsm | 27lb bond |
| 26lb large post 480 | 27lb large post | 30⁠3/4⁠lb demy | 110gsm | 29⁠1/4⁠lb bond |
| 26lb large post 504 | 25⁠3/4⁠lb large post | 29⁠1/4⁠lb demy | 105gsm | 27⁠3/4⁠lb bond |
| 27lb large post 480 | 28⁠1/4⁠lb large post | 32lb demy | 114gsm | 30⁠1/4⁠lb bond |
| 27lb large post 504 | 26⁠3/4⁠lb large post | 30⁠1/2⁠lb demy | 109gsm | 29lb bond |
| 28lb large post 480 | 29⁠1/4⁠lb large post | 33⁠1/4⁠lb demy | 118gsm | 31⁠1/2⁠lb bond |
| 28lb large post 504 | 27⁠3/4⁠lb large post | 31⁠1/2⁠lb demy | 113gsm | 30lb bond |
| 30lb large post 480 | 31⁠1/4⁠lb large post | 35⁠1/2⁠lb demy | 127gsm | 33⁠3/4⁠lb bond |
| 22lb double large post 500 | 11lb large post | 12⁠1/2⁠lb demy | 45gsm | 11⁠3/4⁠lb bond |
| 30lb double large post 480 | 15⁠3/4⁠lb large post | 17⁠3/4⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 30lb double large post 500 | 15lb large post | 17lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 30lb double large post 504 | 15lb large post | 17lb demy | 60gsm | 16lb bond |
| 36lb double large post 480 | 18⁠3/4⁠lb large post | 21⁠1/4⁠lb demy | 76gsm | 20⁠1/4⁠lb bond |
| 36lb double large post 500 | 18lb large post | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 36lb double large post 504 | 17⁠3/4⁠lb large post | 20⁠1/4⁠lb demy | 72gsm | 19⁠1/4⁠lb bond |
| 42lb double large post 480 | 22lb large post | 24⁠3/4⁠lb demy | 89gsm | 23⁠1/2⁠lb bond |
| 42lb double large post 500 | 21lb large post | 23⁠3/4⁠lb demy | 85gsm | 22⁠3/4⁠lb bond |
| 42lb double large post 504 | 20⁠3/4⁠lb large post | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 44lb double large post 504 | 21⁠3/4⁠lb large post | 24⁠3/4⁠lb demy | 89gsm | 23⁠1/2⁠lb bond |
| 13lb small medium 480 | 12⁠1/4⁠lb large post | 13⁠3/4⁠lb demy | 49gsm | 13lb bond |
| 18lb small medium 480 | 17lb large post | 19⁠1/4⁠lb demy | 68gsm | 18⁠1/4⁠lb bond |
| 21lb small medium 504 | 18⁠3/4⁠lb large post | 21⁠1/4⁠lb demy | 76gsm | 20⁠1/4⁠lb bond |
| 21⁠1/2⁠lb small medium 500 | 19⁠1/4⁠lb large post | 22lb demy | 79gsm | 21lb bond |
| 23lb small medium 480 | 21⁠1/2⁠lb large post | 24⁠1/2⁠lb demy | 88gsm | 23⁠1/4⁠lb bond |
| 23lb small medium 504 | 20⁠1/2⁠lb large post | 23⁠1/4⁠lb demy | 83gsm | 22lb bond |
| 24lb small medium 504 | 21⁠1/2⁠lb large post | 24⁠1/4⁠lb demy | 87gsm | 23⁠1/4⁠lb bond |
| 25lb small medium 480 | 23⁠1/2⁠lb large post | 26⁠3/4⁠lb demy | 95gsm | 25⁠1/4⁠lb bond |
| 25lb small medium 504 | 22⁠1/4⁠lb large post | 25⁠1/4⁠lb demy | 91gsm | 24lb bond |
| 30lb small medium 516 | 26⁠1/4⁠lb large post | 29⁠3/4⁠lb demy | 106gsm | 28⁠1/4⁠lb bond |
| 34lb small medium 480 | 32lb large post | 36⁠1/4⁠lb demy | 129gsm | 34⁠1/2⁠lb bond |
| 40lb small medium 504 | 35⁠3/4⁠lb large post | 40⁠1/2⁠lb demy | 145gsm | 38⁠1/2⁠lb bond |
| 13lb medium 500 | 11lb large post | 12⁠1/4⁠lb demy | 44gsm | 11⁠3/4⁠lb bond |
| 14lb medium 500 | 12⁠1/2⁠lb large post | 13⁠1/4⁠lb demy | 51gsm | 13⁠1/2⁠lb bond |
| 18lb medium 480 | 15⁠3/4⁠lb large post | 17⁠3/4⁠lb demy | 64gsm | 17lb bond |
| 18lb medium 500 | 15lb large post | 17lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 21lb medium 500 | 17⁠1/2⁠lb large post | 20lb demy | 71gsm | 19lb bond |
| 21⁠1/2⁠lb medium 500 | 18lb large post | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 25lb medium 500 | 21lb large post | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 28lb medium 500 | 23⁠1/2⁠lb large post | 26⁠3/4⁠lb demy | 95gsm | 25⁠1/4⁠lb bond |
| 26lb double medium 500 | 11lb large post | 12⁠1/4⁠lb demy | 44gsm | 11⁠3/4⁠lb bond |
| 36lb double medium 500 | 15lb large post | 17lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 46lb double medium 480 | 20lb large post | 22⁠3/4⁠lb demy | 81gsm | 21⁠3/4⁠lb bond |
| 46lb double medium 504 | 19lb large post | 21⁠3/4⁠lb demy | 77gsm | 20⁠1/2⁠lb bond |
| 48lb double medium 504 | 20lb large post | 22⁠3/4⁠lb demy | 81gsm | 21⁠1/2⁠lb bond |
| 50lb double medium 504 | 20⁠3/4⁠lb large post | 23⁠1/2⁠lb demy | 84gsm | 22⁠1/2⁠lb bond |
| 60lb double medium 480 | 26⁠1/4⁠lb large post | 29⁠3/4⁠lb demy | 106gsm | 28⁠1/4⁠lb bond |
| 60lb double medium 500 | 25lb large post | 28⁠1/2⁠lb demy | 102gsm | 27lb bond |
| 70lb double medium 500 | 29⁠1/4⁠lb large post | 33⁠1/4⁠lb demy | 119gsm | 31⁠1/2⁠lb bond |
| 20lb double small foolscap 500 | 15⁠3/4⁠lb large post | 18lb demy | 64gsm | 17lb bond |
| 24lb double small foolscap 480 | 19⁠3/4⁠lb large post | 22⁠1/2⁠lb demy | 80gsm | 21⁠1/2⁠lb bond |
| 24lb double small foolscap 500 | 19lb large post | 21⁠1/2⁠lb demy | 77gsm | 20⁠1/2⁠lb bond |
| 25lb double small foolscap 480 | 20⁠3/4⁠lb large post | 23⁠1/2⁠lb demy | 84gsm | 22⁠1/4⁠lb bond |
| 26lb double small foolscap 504 | 20⁠1/2⁠lb large post | 23⁠1/4⁠lb demy | 83gsm | 22lb bond |
| 28lb double small foolscap 480 | 23lb large post | 26⁠1/4⁠lb demy | 94gsm | 25lb bond |
| 28lb double small foolscap 500 | 22⁠1/4⁠lb large post | 25⁠1/2⁠lb demy | 90gsm | 24lb bond |
| 28lb double small foolscap 504 | 22lb large post | 25lb demy | 89gsm | 23⁠3/4⁠lb bond |
| 30lb double small foolscap 480 | 24⁠3/4⁠lb large post | 28⁠1/4⁠lb demy | 100gsm | 26⁠3/4⁠lb bond |
| 30lb double small foolscap 504 | 23⁠1/2⁠lb large post | 26⁠3/4⁠lb demy | 96gsm | 25⁠1/2⁠lb bond |
| 32lb double small foolscap 504 | 25⁠1/4⁠lb large post | 28⁠1/2⁠lb demy | 102gsm | 27⁠1/4⁠lb bond |
| 34lb double small foolscap 504 | 26⁠3/4⁠lb large post | 30⁠1/4⁠lb demy | 108gsm | 28⁠3/4⁠lb bond |
| 36lb double small foolscap 480 | 29⁠3/4⁠lb large post | 33⁠3/4⁠lb demy | 121gsm | 32lb bond |
| 14⁠1/2⁠lb double foolscap 480 | 11⁠1/2⁠lb large post | 13lb demy | 46gsm | 12⁠1/4⁠lb bond |
| 14⁠1/2⁠lb double foolscap 500 | 11lb large post | 12⁠1/2⁠lb demy | 44gsm | 11⁠3/4⁠lb bond |
| 20lb double foolscap 480 | 15⁠3/4⁠lb large post | 17⁠3/4⁠lb demy | 64gsm | 17lb bond |
| 20lb double foolscap 500 | 15lb large post | 17⁠1/4⁠lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 24lb double foolscap 480 | 19lb large post | 21⁠1/2⁠lb demy | 77gsm | 20⁠1/4⁠lb bond |
| 24lb double foolscap 500 | 18lb large post | 20⁠1/2⁠lb demy | 74gsm | 19⁠1/2⁠lb bond |
| 28lb double foolscap 500 | 21⁠1/4⁠lb large post | 24lb demy | 86gsm | 22⁠3/4⁠lb bond |
| 30lb double crown 500 | 17⁠1/4⁠lb large post | 19⁠3/4⁠lb demy | 70gsm | 18⁠3/4⁠lb bond |
| 32lb double crown 480 | 19⁠1/4⁠lb large post | 22lb demy | 78gsm | 20⁠3/4⁠lb bond |
| 32lb double crown 504 | 18⁠1/4⁠lb large post | 20⁠3/4⁠lb demy | 74gsm | 19⁠3/4⁠lb bond |
| 36lb double crown 500 | 20⁠3/4⁠lb large post | 23⁠3/4⁠lb demy | 84gsm | 22⁠1/2⁠lb bond |
| 40lb double crown 500 | 23lb large post | 26⁠1/4⁠lb demy | 94gsm | 25lb bond |
| 40lb double crown 504 | 23lb large post | 26lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 44lb double crown 500 | 25⁠1/2⁠lb large post | 29lb demy | 103gsm | 27⁠1/2⁠lb bond |
| 46lb double crown 480 | 27⁠3/4⁠lb large post | 31⁠1/2⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 50lb double crown 500 | 28⁠3/4⁠lb large post | 32⁠3/4⁠lb demy | 117gsm | 31⁠1/4⁠lb bond |
| 60lb double crown 504 | 34⁠1/2⁠lb large post | 39lb demy | 139gsm | 37lb bond |
| 88lb quad crown 500 | 25⁠1/2⁠lb large post | 29lb demy | 103gsm | 27⁠1/2⁠lb bond |
| 100lb quad crown 500 | 28⁠3/4⁠lb large post | 32⁠3/4⁠lb demy | 117gsm | 31⁠1/4⁠lb bond |
| 25lb small demy 480 | 29lb large post | 33lb demy | 118gsm | 31⁠1/2⁠lb bond |
| 38lb small demy 480 | 44⁠1/4⁠lb large post | 50⁠1/4⁠lb demy | 180gsm | 47⁠3/4⁠lb bond |
| 18lb small foolscap 480 | 29⁠3/4⁠lb large post | 33⁠3/4⁠lb demy | 121gsm | 32lb bond |
| 48lb quad foolscap 504 | 18lb large post | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 50lb quad foolscap 480 | 19⁠3/4⁠lb large post | 22⁠1/4⁠lb demy | 80gsm | 21⁠1/4⁠lb bond |
| 72lb imperial (writing and printing) 480 | 39⁠1/2⁠lb large post | 44⁠3/4⁠lb demy | 160gsm | 42⁠1/2⁠lb bond |
| 18lb post (writing) (pre–‍1937 standardisation) 480 | 22⁠1/2⁠lb large post | 25⁠1/2⁠lb demy | 91gsm | 24⁠1/4⁠lb bond |
| 20lb post (writing) (pre–‍1937 standardisation) 480 | 25lb large post | 28⁠1/4⁠lb demy | 101gsm | 27lb bond |
| 22lb post (writing) (pre–‍1937 standardisation) 480 | 27⁠1/2⁠lb large post | 31⁠1/4⁠lb demy | 111gsm | 29⁠1/2⁠lb bond |
| 72lb quad large post 504 | 17⁠3/4⁠lb large post | 20⁠1/4⁠lb demy | 72gsm | 19⁠1/4⁠lb bond |
| 84lb quad large post 480 | 22lb large post | 24⁠3/4⁠lb demy | 89gsm | 23⁠1/2⁠lb bond |
| 29lb pinched post 480 | 38⁠1/4⁠lb large post | 43⁠1/2⁠lb demy | 156gsm | 41⁠1/2⁠lb bond |
| 44lb small royal 480 | 34⁠3/4⁠lb large post | 39⁠1/2⁠lb demy | 141gsm | 37⁠1/2⁠lb bond |
| 54lb super royal (writing) (pre–‍1925 standardisation) 480 | 37⁠1/2⁠lb large post | 42⁠1/2⁠lb demy | 152gsm | 40⁠1/2⁠lb bond |
| Printing paper |||||
| Common British basis weights (various paper sizes and ream sizes) | Equivalent weight of a 500‑sheet ream of double crown paper, a British uncut printing paper commonly used to express the basis weight of printing paper (rounded to the nearest quarter) (a common British basis for intra‑category comparison) | Equivalent weight of a 500‑sheet ream of demy paper, a British uncut printing paper commonly used by default to express the basis weight of different types of paper (rounded to the nearest quarter) (a common British basis for cross‑category comparison) | Equivalent grammage (rounded to the nearest one) | Equivalent weight of a 500‑sheet ream of bond paper, an American uncut paper commonly used to express the basis weight of paper (rounded to the nearest quarter) (a common American basis for cross‑category comparison) |
| 17lb double crown 480 | 17⁠3/4⁠lb double crown | 11⁠1/2⁠lb demy | 42gsm | 11lb bond |
| 19lb double crown 480 | 19⁠3/4⁠lb double crown | 13lb demy | 46gsm | 12⁠1/4⁠lb bond |
| 20lb double crown 480 | 20⁠3/4⁠lb double crown | 13⁠3/4⁠lb demy | 49gsm | 13lb bond |
| 20lb double crown 516 | 19⁠1/2⁠lb double crown | 12⁠3/4⁠lb demy | 45gsm | 12lb bond |
| 21lb double crown 480 | 22lb double crown | 14⁠1/4⁠lb demy | 51gsm | 13⁠3/4⁠lb bond |
| 22lb double crown 480 | 23lb double crown | 15lb demy | 54gsm | 14⁠1/4⁠lb bond |
| 23lb double crown 480 | 24lb double crown | 15⁠3/4⁠lb demy | 56gsm | 15lb bond |
| 23lb double crown 504 | 22⁠3/4⁠lb double crown | 15lb demy | 53gsm | 14⁠1/4⁠lb bond |
| 24lb double crown 504 | 23⁠3/4⁠lb double crown | 15⁠3/4⁠lb demy | 56gsm | 14⁠3/4⁠lb bond |
| 24lb double crown 516 | 23⁠1/4⁠lb double crown | 15⁠1/4⁠lb demy | 55gsm | 14⁠1/2⁠lb bond |
| 25lb double crown 480 | 26lb double crown | 17lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 25lb double crown 504 | 24⁠3/4⁠lb double crown | 16⁠1/4⁠lb demy | 58gsm | 15⁠1/2⁠lb bond |
| 26lb double crown 480 | 27lb double crown | 17⁠3/4⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 26lb double crown 504 | 25⁠3/4⁠lb double crown | 17lb demy | 60gsm | 16lb bond |
| 26lb double crown 516 | 25⁠1/4⁠lb double crown | 16⁠1/2⁠lb demy | 59gsm | 15⁠3/4⁠lb bond |
| 27lb double crown 480 | 28⁠1/2⁠lb double crown | 18⁠1/2⁠lb demy | 66gsm | 17⁠1/2⁠lb bond |
| 27lb double crown 500 | 27lb double crown | 17⁠3/4⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 27lb double crown 504 | 26⁠3/4⁠lb double crown | 17⁠1/2⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 28lb double crown 480 | 29⁠1/4⁠lb double crown | 19⁠1/4⁠lb demy | 68gsm | 18⁠1/4⁠lb bond |
| 28lb double crown 516 | 27⁠1/4⁠lb double crown | 17⁠3/4⁠lb demy | 64gsm | 17lb bond |
| 29lb double crown 480 | 30⁠1/4⁠lb double crown | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 30lb double crown 480 | 31⁠1/4⁠lb double crown | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 30lb double crown 500 | 30lb double crown | 19⁠3/4⁠lb demy | 70gsm | 18⁠3/4⁠lb bond |
| 30lb double crown 504 | 29⁠3/4⁠lb double crown | 19⁠1/2⁠lb demy | 70gsm | 18⁠1/2⁠lb bond |
| 30lb double crown 516 | 29lb double crown | 19lb demy | 68gsm | 18lb bond |
| 31lb double crown 504 | 30⁠3/4⁠lb double crown | 20⁠1/4⁠lb demy | 72gsm | 19⁠1/4⁠lb bond |
| 32lb double crown 480 | 33⁠1/4⁠lb double crown | 22lb demy | 78gsm | 20⁠3/4⁠lb bond |
| 32lb double crown 504 | 31⁠3/4⁠lb double crown | 20⁠3/4⁠lb demy | 74gsm | 19⁠3/4⁠lb bond |
| 32lb double crown 516 | 31lb double crown | 20⁠1/4⁠lb demy | 73gsm | 19⁠1/4⁠lb bond |
| 33lb double crown 480 | 35lb double crown | 22⁠1/2⁠lb demy | 81gsm | 21⁠1/2⁠lb bond |
| 33lb double crown 504 | 32⁠3/4⁠lb double crown | 21⁠1/2⁠lb demy | 77gsm | 20⁠1/2⁠lb bond |
| 34lb double crown 504 | 33⁠3/4⁠lb double crown | 22⁠1/4⁠lb demy | 79gsm | 21lb bond |
| 34lb double crown 516 | 33lb double crown | 21⁠1/2⁠lb demy | 77gsm | 20⁠1/2⁠lb bond |
| 35lb double crown 480 | 36⁠1/2⁠lb double crown | 24lb demy | 85gsm | 22⁠3/4⁠lb bond |
| 36lb double crown 480 | 37⁠1/2⁠lb double crown | 24⁠1/2⁠lb demy | 88gsm | 23⁠1/2⁠lb bond |
| 36lb double crown 500 | 36lb double crown | 23⁠3/4⁠lb demy | 84gsm | 22⁠1/2⁠lb bond |
| 36lb double crown 504 | 35⁠3/4⁠lb double crown | 23⁠1/2⁠lb demy | 84gsm | 22⁠1/4⁠lb bond |
| 36lb double crown 516 | 35lb double crown | 23lb demy | 82gsm | 21⁠3/4⁠lb bond |
| 38lb double crown 480 | 39⁠1/2⁠lb double crown | 26lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 38lb double crown 504 | 37⁠3/4⁠lb double crown | 24⁠3/4⁠lb demy | 88gsm | 23⁠1/2⁠lb bond |
| 38lb double crown 516 | 36⁠3/4⁠lb double crown | 24⁠1/4⁠lb demy | 86gsm | 23lb bond |
| 39lb double crown 504 | 38⁠3/4⁠lb double crown | 25⁠1/2⁠lb demy | 91gsm | 24lb bond |
| 40lb double crown 480 | 41⁠3/4⁠lb double crown | 27⁠1/4⁠lb demy | 98gsm | 26lb bond |
| 40lb double crown 500 | 40lb double crown | 26⁠1/4⁠lb demy | 94gsm | 25lb bond |
| 40lb double crown 504 | 39⁠3/4⁠lb double crown | 26lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 40lb double crown 516 | 38⁠3/4⁠lb double crown | 25⁠1/2⁠lb demy | 91gsm | 24⁠1/4⁠lb bond |
| 42lb double crown 480 | 43⁠3/4⁠lb double crown | 28⁠3/4⁠lb demy | 103gsm | 27⁠1/4⁠lb bond |
| 42lb double crown 504 | 41⁠3/4⁠lb double crown | 27⁠1/4⁠lb demy | 98gsm | 26lb bond |
| 44lb double crown 480 | 45⁠3/4⁠lb double crown | 30lb demy | 107gsm | 28⁠1/2⁠lb bond |
| 44lb double crown 500 | 44lb double crown | 28⁠3/4⁠lb demy | 103gsm | 27⁠1/2⁠lb bond |
| 44lb double crown 516 | 42⁠3/4⁠lb double crown | 28lb demy | 100gsm | 26⁠1/2⁠lb bond |
| 45lb double crown 480 | 47lb double crown | 30⁠3/4⁠lb demy | 110gsm | 29⁠1/4⁠lb bond |
| 45lb double crown 500 | 45lb double crown | 29⁠1/2⁠lb demy | 105gsm | 28lb bond |
| 46lb double crown 480 | 48lb double crown | 31⁠1/2⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 46lb double crown 504 | 45⁠3/4⁠lb double crown | 30lb demy | 107gsm | 28⁠1/2⁠lb bond |
| 46lb double crown 516 | 44⁠1/2⁠lb double crown | 29⁠1/4⁠lb demy | 104gsm | 27⁠3/4⁠lb bond |
| 47lb double crown 480 | 49lb double crown | 32lb demy | 115gsm | 30⁠1/2⁠lb bond |
| 50lb double crown 480 | 52lb double crown | 34⁠1/4⁠lb demy | 122gsm | 32⁠1/2⁠lb bond |
| 50lb double crown 500 | 50lb double crown | 32⁠3/4⁠lb demy | 117gsm | 31⁠1/4⁠lb bond |
| 50lb double crown 504 | 49⁠1/2⁠lb double crown | 32⁠1/2⁠lb demy | 116gsm | 31lb bond |
| 50lb double crown 516 | 48⁠1/2⁠lb double crown | 31⁠3/4⁠lb demy | 114gsm | 30⁠1/4⁠lb bond |
| 52lb double crown 480 | 54⁠1/4⁠lb double crown | 35⁠1/2⁠lb demy | 127gsm | 33⁠3/4⁠lb bond |
| 54lb double crown 480 | 56⁠1/4⁠lb double crown | 37lb demy | 132gsm | 35lb bond |
| 54lb double crown 516 | 52⁠1/4⁠lb double crown | 34⁠1/4⁠lb demy | 123gsm | 32⁠1/2⁠lb bond |
| 55lb double crown 480 | 57⁠1/4⁠lb double crown | 37⁠1/2⁠lb demy | 134gsm | 35⁠3/4⁠lb bond |
| 56lb double crown 516 | 54⁠1/4⁠lb double crown | 35⁠1/2⁠lb demy | 127gsm | 33⁠3/4⁠lb bond |
| 57lb double crown 480 | 59⁠1/2⁠lb double crown | 39lb demy | 139gsm | 37lb bond |
| 58lb double crown 500 | 58lb double crown | 38lb demy | 136gsm | 36⁠1/4⁠lb bond |
| 60lb double crown 480 | 62⁠1/2⁠lb double crown | 41lb demy | 146gsm | 39lb bond |
| 60lb double crown 500 | 60lb double crown | 39⁠1/2⁠lb demy | 141gsm | 37⁠1/2⁠lb bond |
| 60lb double crown 504 | 59⁠1/2⁠lb double crown | 39lb demy | 139gsm | 37lb bond |
| 60lb double crown 516 | 58⁠1/4⁠lb double crown | 38⁠1/4⁠lb demy | 136gsm | 36⁠1/4⁠lb bond |
| 61lb double crown 480 | 63⁠1/2⁠lb double crown | 41⁠3/4⁠lb demy | 149gsm | 39⁠1/2⁠lb bond |
| 76lb double crown 480 | 79⁠1/4⁠lb double crown | 52lb demy | 186gsm | 49⁠1/4⁠lb bond |
| 79lb double crown 516 | 76⁠1/2⁠lb double crown | 50⁠1/4⁠lb demy | 179gsm | 47⁠3/4⁠lb bond |
| 80lb double crown 480 | 83⁠1/4⁠lb double crown | 54⁠3/4⁠lb demy | 195gsm | 52lb bond |
| 80lb double crown 504 | 79⁠1/4⁠lb double crown | 52lb demy | 186gsm | 49⁠1/2⁠lb bond |
| 40lb quad crown 516 | 19⁠1/2⁠lb double crown | 12⁠3/4⁠lb demy | 45gsm | 12lb bond |
| 48lb quad crown 504 | 23⁠3/4⁠lb double crown | 15⁠3/4⁠lb demy | 56gsm | 14⁠3/4⁠lb bond |
| 50lb quad crown 480 | 26lb double crown | 17lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 54lb quad crown 500 | 27lb double crown | 17⁠3/4⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 60lb quad crown 480 | 31⁠1/4⁠lb double crown | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 60lb quad crown 500 | 30lb double crown | 19⁠3/4⁠lb demy | 70gsm | 18⁠3/4⁠lb bond |
| 60lb quad crown 504 | 29⁠3/4⁠lb double crown | 19⁠1/2⁠lb demy | 70gsm | 18⁠1/2⁠lb bond |
| 60lb quad crown 516 | 29lb double crown | 19lb demy | 68gsm | 18lb bond |
| 64lb quad crown 516 | 31lb double crown | 20⁠1/4⁠lb demy | 73gsm | 19⁠1/4⁠lb bond |
| 68lb quad crown 516 | 33lb double crown | 21⁠1/2⁠lb demy | 77gsm | 20⁠1/2⁠lb bond |
| 70lb quad crown 480 | 36⁠1/2⁠lb double crown | 24lb demy | 85gsm | 22⁠3/4⁠lb bond |
| 70lb quad crown 516 | 34lb double crown | 22⁠1/4⁠lb demy | 79gsm | 21⁠1/4⁠lb bond |
| 72lb quad crown 500 | 36lb double crown | 23⁠3/4⁠lb demy | 84gsm | 22⁠1/2⁠lb bond |
| 72lb quad crown 504 | 35⁠3/4⁠lb double crown | 23⁠1/2⁠lb demy | 84gsm | 22⁠1/4⁠lb bond |
| 80lb quad crown 500 | 40lb double crown | 26⁠1/4⁠lb demy | 94gsm | 25lb bond |
| 80lb quad crown 504 | 39⁠3/4⁠lb double crown | 26lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 80lb quad crown 516 | 38⁠3/4⁠lb double crown | 25⁠1/2⁠lb demy | 91gsm | 24⁠1/4⁠lb bond |
| 86lb quad crown 480 | 44⁠3/4⁠lb double crown | 29⁠1/2⁠lb demy | 105gsm | 28lb bond |
| 88lb quad crown 500 | 44lb double crown | 29lb demy | 103gsm | 27⁠1/2⁠lb bond |
| 96lb quad crown 516 | 46⁠1/2⁠lb double crown | 30⁠1/2⁠lb demy | 109gsm | 29lb bond |
| 100lb quad crown 500 | 50lb double crown | 32⁠3/4⁠lb demy | 117gsm | 31⁠1/4⁠lb bond |
| 100lb quad crown 504 | 49⁠1/2⁠lb double crown | 32⁠1/2⁠lb demy | 116gsm | 31lb bond |
| 100lb quad crown 516 | 48⁠1/2⁠lb double crown | 31⁠3/4⁠lb demy | 114gsm | 30⁠1/4⁠lb bond |
| 120lb quad crown 500 | 60lb double crown | 39⁠1/2⁠lb demy | 141gsm | 37⁠1/2⁠lb bond |
| 120lb quad crown 504 | 59⁠1/2⁠lb double crown | 39lb demy | 139gsm | 37lb bond |
| 120lb quad crown 516 | 58⁠1/4⁠lb double crown | 38⁠1/4⁠lb demy | 136gsm | 36⁠1/4⁠lb bond |
| 14lb demy 480 | 22⁠1/4⁠lb double crown | 14⁠1/2⁠lb demy | 52gsm | 13⁠3/4⁠lb bond |
| 16lb demy 480 | 25⁠1/2⁠lb double crown | 16⁠3/4⁠lb demy | 60gsm | 15⁠3/4⁠lb bond |
| 17lb demy 480 | 27lb double crown | 17⁠3/4⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 18lb demy 480 | 28⁠1/2⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 17⁠3/4⁠lb bond |
| 18lb demy 504 | 27⁠1/4⁠lb double crown | 17⁠3/4⁠lb demy | 64gsm | 17lb bond |
| 19lb demy 480 | 30⁠1/4⁠lb double crown | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 20lb demy 480 | 31⁠3/4⁠lb double crown | 20⁠3/4⁠lb demy | 74gsm | 19⁠3/4⁠lb bond |
| 20lb demy 504 | 30⁠1/4⁠lb double crown | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 20lb demy 516 | 29⁠1/2⁠lb double crown | 19⁠1/2⁠lb demy | 69gsm | 18⁠1/2⁠lb bond |
| 21lb demy 480 | 33⁠1/4⁠lb double crown | 22lb demy | 78gsm | 20⁠3/4⁠lb bond |
| 24lb demy 504 | 36⁠1/4⁠lb double crown | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 25lb demy 480 | 39⁠3/4⁠lb double crown | 26lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 26lb demy 480 | 41⁠1/4⁠lb double crown | 27lb demy | 97gsm | 25⁠3/4⁠lb bond |
| 28lb demy 480 | 44⁠1/2⁠lb double crown | 29⁠1/4⁠lb demy | 104gsm | 27⁠3/4⁠lb bond |
| 29lb demy 480 | 46lb double crown | 30⁠1/4⁠lb demy | 108gsm | 28⁠3/4⁠lb bond |
| 30lb demy 480 | 47⁠1/2⁠lb double crown | 31⁠1/4⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 30lb demy 516 | 44⁠1/4⁠lb double crown | 29lb demy | 104gsm | 27⁠1/2⁠lb bond |
| 32lb demy 480 | 50⁠3/4⁠lb double crown | 33⁠1/4⁠lb demy | 119gsm | 31⁠3/4⁠lb bond |
| 34lb demy 480 | 54lb double crown | 35⁠1/2⁠lb demy | 126gsm | 33⁠3/4⁠lb bond |
| 35lb demy 480 | 55⁠1/2⁠lb double crown | 36⁠1/2⁠lb demy | 130gsm | 34⁠1/2⁠lb bond |
| 36lb demy 480 | 57⁠1/4⁠lb double crown | 37⁠1/2⁠lb demy | 134gsm | 35⁠1/2⁠lb bond |
| 44lb demy 480 | 69⁠3/4⁠lb double crown | 45⁠3/4⁠lb demy | 164gsm | 43⁠1/2⁠lb bond |
| 64lb demy 516 | 94⁠1/2⁠lb double crown | 62lb demy | 221gsm | 59lb bond |
| 23lb double demy 480 | 18⁠1/4⁠lb double crown | 12lb demy | 43gsm | 11⁠1/2⁠lb bond |
| 25lb double demy 480 | 19⁠3/4⁠lb double crown | 13lb demy | 46gsm | 12⁠1/4⁠lb bond |
| 26lb double demy 480 | 20⁠3/4⁠lb double crown | 13⁠1/2⁠lb demy | 48gsm | 12⁠3/4⁠lb bond |
| 28lb double demy 480 | 22⁠1/4⁠lb double crown | 14⁠1/2⁠lb demy | 52gsm | 13⁠3/4⁠lb bond |
| 28lb double demy 516 | 20⁠3/4⁠lb double crown | 13⁠1/2⁠lb demy | 48gsm | 13lb bond |
| 30lb double demy 480 | 23⁠3/4⁠lb double crown | 15⁠3/4⁠lb demy | 56gsm | 14⁠3/4⁠lb bond |
| 30lb double demy 516 | 22⁠1/4⁠lb double crown | 14⁠1/2⁠lb demy | 52gsm | 13⁠3/4⁠lb bond |
| 32lb double demy 480 | 25⁠1/2⁠lb double crown | 16⁠3/4⁠lb demy | 60gsm | 15⁠3/4⁠lb bond |
| 32lb double demy 504 | 24⁠1/4⁠lb double crown | 15⁠3/4⁠lb demy | 57gsm | 15lb bond |
| 32lb double demy 516 | 23⁠1/2⁠lb double crown | 15⁠1/2⁠lb demy | 55gsm | 14⁠3/4⁠lb bond |
| 33lb double demy 480 | 26⁠1/4⁠lb double crown | 17⁠1/4⁠lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 34lb double demy 480 | 27lb double crown | 17⁠3/4⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 34lb double demy 504 | 25⁠3/4⁠lb double crown | 16⁠3/4⁠lb demy | 60gsm | 16lb bond |
| 34lb double demy 516 | 25lb double crown | 16⁠1/2⁠lb demy | 59gsm | 15⁠3/4⁠lb bond |
| 35lb double demy 480 | 27⁠3/4⁠lb double crown | 18⁠1/4⁠lb demy | 65gsm | 17⁠1/4⁠lb bond |
| 36lb double demy 480 | 28⁠1/2⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 17⁠3/4⁠lb bond |
| 36lb double demy 500 | 27⁠1/2⁠lb double crown | 18lb demy | 64gsm | 17lb bond |
| 36lb double demy 504 | 27⁠1/4⁠lb double crown | 17⁠3/4⁠lb demy | 64gsm | 17lb bond |
| 36lb double demy 516 | 26⁠1/2⁠lb double crown | 17⁠1/2⁠lb demy | 62gsm | 16⁠1/2⁠lb bond |
| 38lb double demy 480 | 30⁠1/4⁠lb double crown | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 38lb double demy 504 | 28⁠3/4⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 18lb bond |
| 40lb double demy 480 | 31⁠3/4⁠lb double crown | 20⁠3/4⁠lb demy | 74gsm | 19⁠3/4⁠lb bond |
| 40lb double demy 500 | 30⁠1/2⁠lb double crown | 20lb demy | 71gsm | 19lb bond |
| 40lb double demy 504 | 30⁠1/4⁠lb double crown | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 40lb double demy 516 | 29⁠1/2⁠lb double crown | 19⁠1/2⁠lb demy | 69gsm | 18⁠1/2⁠lb bond |
| 42lb double demy 480 | 33⁠1/4⁠lb double crown | 22lb demy | 78gsm | 20⁠3/4⁠lb bond |
| 42lb double demy 516 | 31lb double crown | 20⁠1/4⁠lb demy | 73gsm | 19⁠1/4⁠lb bond |
| 44lb double demy 516 | 32⁠1/2⁠lb double crown | 21⁠1/4⁠lb demy | 76gsm | 20⁠1/4⁠lb bond |
| 45lb double demy 500 | 34⁠1/4⁠lb double crown | 22⁠1/2⁠lb demy | 80gsm | 21⁠1/4⁠lb bond |
| 45lb double demy 516 | 33⁠1/4⁠lb double crown | 21⁠3/4⁠lb demy | 78gsm | 20⁠3/4⁠lb bond |
| 46lb double demy 480 | 36⁠1/2⁠lb double crown | 24lb demy | 86gsm | 22⁠3/4⁠lb bond |
| 46lb double demy 516 | 34lb double crown | 22⁠1/4⁠lb demy | 80gsm | 21⁠1/4⁠lb bond |
| 47lb double demy 516 | 34⁠3/4⁠lb double crown | 22⁠3/4⁠lb demy | 81gsm | 21⁠1/2⁠lb bond |
| 48lb double demy 480 | 38lb double crown | 25lb demy | 89gsm | 23⁠3/4⁠lb bond |
| 48lb double demy 500 | 36⁠1/2⁠lb double crown | 24lb demy | 86gsm | 22⁠3/4⁠lb bond |
| 48lb double demy 504 | 36⁠1/4⁠lb double crown | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 48lb double demy 516 | 35⁠1/2⁠lb double crown | 23⁠1/4⁠lb demy | 83gsm | 22lb bond |
| 50lb double demy 480 | 39⁠3/4⁠lb double crown | 26lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 52lb double demy 504 | 39⁠1/4⁠lb double crown | 25⁠3/4⁠lb demy | 92gsm | 24⁠1/2⁠lb bond |
| 53lb double demy 516 | 39⁠1/4⁠lb double crown | 25⁠3/4⁠lb demy | 92gsm | 24⁠1/2⁠lb bond |
| 54lb double demy 480 | 42⁠3/4⁠lb double crown | 28⁠1/4⁠lb demy | 100gsm | 26⁠3/4⁠lb bond |
| 55lb double demy 480 | 43⁠3/4⁠lb double crown | 28⁠3/4⁠lb demy | 102gsm | 27⁠1/4⁠lb bond |
| 55lb double demy 516 | 40⁠1/2⁠lb double crown | 26⁠3/4⁠lb demy | 95gsm | 25⁠1/4⁠lb bond |
| 56lb double demy 480 | 44⁠1/2⁠lb double crown | 29⁠1/4⁠lb demy | 104gsm | 27⁠3/4⁠lb bond |
| 56lb double demy 516 | 41⁠1/4⁠lb double crown | 27⁠1/4⁠lb demy | 97gsm | 25⁠3/4⁠lb bond |
| 60lb double demy 480 | 47⁠1/2⁠lb double crown | 31⁠1/4⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 60lb double demy 504 | 45⁠1/4⁠lb double crown | 29⁠3/4⁠lb demy | 106gsm | 28⁠1/4⁠lb bond |
| 60lb double demy 516 | 44⁠1/4⁠lb double crown | 29lb demy | 104gsm | 27⁠1/2⁠lb bond |
| 64lb double demy 516 | 47⁠1/4⁠lb double crown | 31lb demy | 111gsm | 29⁠1/2⁠lb bond |
| 68lb double demy 480 | 54lb double crown | 35⁠1/2⁠lb demy | 126gsm | 33⁠3/4⁠lb bond |
| 69lb double demy 480 | 54⁠3/4⁠lb double crown | 36lb demy | 128gsm | 34⁠1/4⁠lb bond |
| 70lb double demy 480 | 55⁠1/2⁠lb double crown | 36⁠1/2⁠lb demy | 130gsm | 34⁠1/2⁠lb bond |
| 72lb double demy 516 | 53⁠1/4⁠lb double crown | 35lb demy | 125gsm | 33⁠1/4⁠lb bond |
| 74lb double demy 480 | 58⁠3/4⁠lb double crown | 38⁠1/2⁠lb demy | 138gsm | 36⁠1/2⁠lb bond |
| 80lb double demy 504 | 60⁠1/2⁠lb double crown | 39⁠3/4⁠lb demy | 142gsm | 37⁠3/4⁠lb bond |
| 88lb double demy 516 | 65lb double crown | 42⁠3/4⁠lb demy | 152gsm | 40⁠1/2⁠lb bond |
| 89lb double demy 480 | 70⁠3/4⁠lb double crown | 46⁠1/4⁠lb demy | 166gsm | 44lb bond |
| 19lb medium 480 | 28⁠3/4⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 18lb bond |
| 20lb medium 480 | 30⁠1/4⁠lb double crown | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 24lb medium 480 | 36⁠1/4⁠lb double crown | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 25lb medium 480 | 37⁠3/4⁠lb double crown | 24⁠3/4⁠lb demy | 88gsm | 23⁠1/2⁠lb bond |
| 25lb medium 504 | 36lb double crown | 23⁠1/2⁠lb demy | 84gsm | 22⁠1/2⁠lb bond |
| 27lb medium 480 | 40⁠3/4⁠lb double crown | 26⁠3/4⁠lb demy | 96gsm | 25⁠1/2⁠lb bond |
| 28lb medium 480 | 42⁠1/4⁠lb double crown | 27⁠3/4⁠lb demy | 99gsm | 26⁠1/4⁠lb bond |
| 29lb medium 480 | 43⁠3/4⁠lb double crown | 28⁠3/4⁠lb demy | 103gsm | 27⁠1/4⁠lb bond |
| 30lb medium 480 | 45⁠1/4⁠lb double crown | 29⁠3/4⁠lb demy | 106gsm | 28⁠1/4⁠lb bond |
| 30lb medium 516 | 42⁠1/4⁠lb double crown | 27⁠3/4⁠lb demy | 99gsm | 26⁠1/4⁠lb bond |
| 31lb medium 480 | 46⁠3/4⁠lb double crown | 30⁠3/4⁠lb demy | 110gsm | 29⁠1/4⁠lb bond |
| 32lb medium 480 | 48⁠1/4⁠lb double crown | 31⁠3/4⁠lb demy | 113gsm | 30lb bond |
| 33lb medium 516 | 46⁠1/4⁠lb double crown | 30⁠1/2⁠lb demy | 109gsm | 29lb bond |
| 34lb medium 480 | 51⁠1/4⁠lb double crown | 33⁠3/4⁠lb demy | 120gsm | 32lb bond |
| 34lb medium 504 | 49lb double crown | 32lb demy | 115gsm | 30⁠1/2⁠lb bond |
| 35lb medium 480 | 52⁠3/4⁠lb double crown | 34⁠3/4⁠lb demy | 124gsm | 33lb bond |
| 38lb medium 516 | 53⁠1/4⁠lb double crown | 35lb demy | 125gsm | 33⁠1/4⁠lb bond |
| 40lb medium 480 | 60⁠1/2⁠lb double crown | 39⁠3/4⁠lb demy | 142gsm | 37⁠3/4⁠lb bond |
| 40lb medium 504 | 57⁠1/2⁠lb double crown | 37⁠3/4⁠lb demy | 135gsm | 35⁠3/4⁠lb bond |
| 40lb medium 516 | 56⁠1/4⁠lb double crown | 36⁠3/4⁠lb demy | 132gsm | 35lb bond |
| 45lb medium 480 | 68lb double crown | 44⁠1/2⁠lb demy | 159gsm | 42⁠1/4⁠lb bond |
| 48lb medium 480 | 72⁠1/2⁠lb double crown | 47⁠1/2⁠lb demy | 170gsm | 45⁠1/4⁠lb bond |
| 50lb medium 504 | 72lb double crown | 47⁠1/4⁠lb demy | 168gsm | 44⁠3/4⁠lb bond |
| 53lb medium 504 | 76⁠1/4⁠lb double crown | 50lb demy | 179gsm | 47⁠1/2⁠lb bond |
| 55lb medium 480 | 83lb double crown | 54⁠1/2⁠lb demy | 195gsm | 51⁠3/4⁠lb bond |
| 42lb double medium 480 | 31⁠3/4⁠lb double crown | 20⁠3/4⁠lb demy | 74gsm | 19⁠3/4⁠lb bond |
| 50lb double medium 480 | 37⁠3/4⁠lb double crown | 24⁠3/4⁠lb demy | 88gsm | 23⁠1/2⁠lb bond |
| 50lb double medium 504 | 36lb double crown | 23⁠1/2⁠lb demy | 84gsm | 22⁠1/2⁠lb bond |
| 50lb double medium 516 | 35lb double crown | 23lb demy | 82gsm | 22lb bond |
| 55lb double medium 500 | 39⁠3/4⁠lb double crown | 26⁠1/4⁠lb demy | 93gsm | 24⁠3/4⁠lb bond |
| 60lb double medium 500 | 43⁠1/2⁠lb double crown | 28⁠1/2⁠lb demy | 102gsm | 27lb bond |
| 60lb double medium 516 | 42⁠1/4⁠lb double crown | 27⁠3/4⁠lb demy | 99gsm | 26⁠1/4⁠lb bond |
| 62lb double medium 500 | 45lb double crown | 29⁠1/2⁠lb demy | 105gsm | 28lb bond |
| 64lb double medium 516 | 45lb double crown | 29⁠1/2⁠lb demy | 105gsm | 28lb bond |
| 65lb double medium 500 | 47lb double crown | 31lb demy | 110gsm | 29⁠1/4⁠lb bond |
| 68lb double medium 480 | 51⁠1/4⁠lb double crown | 33⁠3/4⁠lb demy | 120gsm | 32lb bond |
| 68lb double medium 504 | 49lb double crown | 32lb demy | 115gsm | 30⁠1/2⁠lb bond |
| 69lb double medium 500 | 50lb double crown | 32⁠3/4⁠lb demy | 117gsm | 31⁠1/4⁠lb bond |
| 70lb double medium 500 | 50⁠3/4⁠lb double crown | 33⁠1/4⁠lb demy | 119gsm | 31⁠1/2⁠lb bond |
| 80lb double medium 500 | 58lb double crown | 38lb demy | 136gsm | 36⁠1/4⁠lb bond |
| 80lb double medium 516 | 56⁠1/4⁠lb double crown | 36⁠3/4⁠lb demy | 132gsm | 35lb bond |
| 20lb royal 480 | 25lb double crown | 16⁠1/2⁠lb demy | 59gsm | 15⁠1/2⁠lb bond |
| 21lb royal 516 | 24⁠1/2⁠lb double crown | 16lb demy | 57gsm | 15⁠1/4⁠lb bond |
| 22lb royal 480 | 27⁠1/2⁠lb double crown | 18lb demy | 64gsm | 17⁠1/4⁠lb bond |
| 23lb royal 480 | 28⁠3/4⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 18lb bond |
| 24lb royal 480 | 30lb double crown | 19⁠3/4⁠lb demy | 70gsm | 18⁠3/4⁠lb bond |
| 24lb royal 504 | 28⁠1/2⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 17⁠3/4⁠lb bond |
| 24lb royal 516 | 28lb double crown | 18⁠1/4⁠lb demy | 65gsm | 17⁠1/2⁠lb bond |
| 25lb royal 516 | 29lb double crown | 19lb demy | 68gsm | 18lb bond |
| 26lb royal 480 | 32⁠1/2⁠lb double crown | 21⁠1/4⁠lb demy | 76gsm | 20⁠1/4⁠lb bond |
| 26lb royal 516 | 30⁠1/4⁠lb double crown | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 27lb royal 516 | 31⁠1/2⁠lb double crown | 20⁠1/2⁠lb demy | 74gsm | 19⁠1/2⁠lb bond |
| 30lb royal 480 | 37⁠1/2⁠lb double crown | 24⁠1/2⁠lb demy | 88gsm | 23⁠1/4⁠lb bond |
| 30lb royal 516 | 35lb double crown | 23lb demy | 82gsm | 21⁠3/4⁠lb bond |
| 31lb royal 480 | 38⁠3/4⁠lb double crown | 25⁠1/2⁠lb demy | 91gsm | 24⁠1/4⁠lb bond |
| 32lb royal 480 | 40lb double crown | 26⁠1/4⁠lb demy | 94gsm | 25lb bond |
| 33lb royal 480 | 41⁠1/4⁠lb double crown | 27lb demy | 97gsm | 25⁠3/4⁠lb bond |
| 34lb royal 480 | 42⁠1/2⁠lb double crown | 28lb demy | 100gsm | 26⁠1/2⁠lb bond |
| 36lb royal 480 | 45lb double crown | 29⁠1/2⁠lb demy | 105gsm | 28lb bond |
| 36lb royal 516 | 41⁠3/4⁠lb double crown | 27⁠1/2⁠lb demy | 98gsm | 26lb bond |
| 37lb royal 480 | 46⁠1/4⁠lb double crown | 30⁠1/4⁠lb demy | 108gsm | 28⁠3/4⁠lb bond |
| 38lb royal 480 | 47⁠1/2⁠lb double crown | 31⁠1/4⁠lb demy | 111gsm | 29⁠1/2⁠lb bond |
| 39lb royal 480 | 48⁠3/4⁠lb double crown | 32lb demy | 114gsm | 30⁠1/2⁠lb bond |
| 40lb royal 480 | 50lb double crown | 32⁠3/4⁠lb demy | 117gsm | 31⁠1/4⁠lb bond |
| 40lb royal 504 | 47⁠1/2⁠lb double crown | 31⁠1/4⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 40lb royal 516 | 46⁠1/2⁠lb double crown | 30⁠1/2⁠lb demy | 109gsm | 29lb bond |
| 41lb royal 480 | 51⁠1/4⁠lb double crown | 33⁠3/4⁠lb demy | 120gsm | 32lb bond |
| 42lb royal 480 | 52⁠1/2⁠lb double crown | 34⁠1/2⁠lb demy | 123gsm | 32⁠3/4⁠lb bond |
| 44lb royal 480 | 55lb double crown | 36lb demy | 129gsm | 34⁠1/4⁠lb bond |
| 45lb royal 480 | 56⁠1/4⁠lb double crown | 37lb demy | 132gsm | 35lb bond |
| 47lb royal 480 | 58⁠3/4⁠lb double crown | 38⁠1/2⁠lb demy | 138gsm | 36⁠1/2⁠lb bond |
| 50lb royal 480 | 62⁠1/2⁠lb double crown | 41lb demy | 146gsm | 39lb bond |
| 50lb royal 504 | 59⁠1/2⁠lb double crown | 39lb demy | 139gsm | 37lb bond |
| 50lb royal 516 | 58⁠1/4⁠lb double crown | 38⁠1/4⁠lb demy | 136gsm | 36⁠1/4⁠lb bond |
| 51lb royal 480 | 63⁠3/4⁠lb double crown | 41⁠3/4⁠lb demy | 149gsm | 39⁠3/4⁠lb bond |
| 60lb royal 480 | 75lb double crown | 49⁠1/4⁠lb demy | 176gsm | 46⁠3/4⁠lb bond |
| 61lb royal 480 | 76⁠1/4⁠lb double crown | 50lb demy | 179gsm | 47⁠1/2⁠lb bond |
| 66lb royal 480 | 82⁠1/2⁠lb double crown | 54⁠1/4⁠lb demy | 193gsm | 51⁠1/2⁠lb bond |
| 67lb royal 504 | 79⁠3/4⁠lb double crown | 52⁠1/4⁠lb demy | 187gsm | 49⁠3/4⁠lb bond |
| 70lb royal 480 | 87⁠1/2⁠lb double crown | 57⁠1/2⁠lb demy | 205gsm | 54⁠1/2⁠lb bond |
| 32lb double royal 500 | 19⁠1/4⁠lb double crown | 12⁠1/2⁠lb demy | 45gsm | 12lb bond |
| 37lb double royal 480 | 23⁠1/4⁠lb double crown | 15⁠1/4⁠lb demy | 54gsm | 14⁠1/2⁠lb bond |
| 40lb double royal 504 | 23⁠3/4⁠lb double crown | 15⁠3/4⁠lb demy | 56gsm | 14⁠3/4⁠lb bond |
| 42lb double royal 516 | 24⁠1/2⁠lb double crown | 16lb demy | 57gsm | 15⁠1/4⁠lb bond |
| 46lb double royal 480 | 28⁠3/4⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 18lb bond |
| 48lb double royal 504 | 28⁠1/2⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 17⁠3/4⁠lb bond |
| 48lb double royal 516 | 28lb double crown | 18⁠1/4⁠lb demy | 65gsm | 17⁠1/2⁠lb bond |
| 50lb double royal 500 | 30lb double crown | 19⁠3/4⁠lb demy | 70gsm | 18⁠3/4⁠lb bond |
| 50lb double royal 516 | 29lb double crown | 19lb demy | 68gsm | 18lb bond |
| 54lb double royal 516 | 31⁠1/2⁠lb double crown | 20⁠1/2⁠lb demy | 74gsm | 19⁠1/2⁠lb bond |
| 60lb double royal 500 | 36lb double crown | 23⁠3/4⁠lb demy | 84gsm | 22⁠1/2⁠lb bond |
| 60lb double royal 504 | 35⁠3/4⁠lb double crown | 23⁠1/2⁠lb demy | 84gsm | 22⁠1/4⁠lb bond |
| 60lb double royal 516 | 35lb double crown | 23lb demy | 82gsm | 21⁠3/4⁠lb bond |
| 66⁠1/2⁠lb double royal 500 | 40lb double crown | 26⁠1/4⁠lb demy | 94gsm | 24⁠3/4⁠lb bond |
| 72lb double royal 504 | 42⁠3/4⁠lb double crown | 28⁠1/4⁠lb demy | 100gsm | 26⁠3/4⁠lb bond |
| 72lb double royal 516 | 41⁠3/4⁠lb double crown | 27⁠1/2⁠lb demy | 98gsm | 26lb bond |
| 75lb double royal 500 | 45lb double crown | 29⁠1/2⁠lb demy | 105gsm | 28lb bond |
| 80lb double royal 504 | 47⁠1/2⁠lb double crown | 31⁠1/4⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 80lb double royal 516 | 46⁠1/2⁠lb double crown | 30⁠1/2⁠lb demy | 109gsm | 29lb bond |
| 91lb double royal 516 | 53lb double crown | 34⁠3/4⁠lb demy | 124gsm | 33lb bond |
| 100lb double royal 504 | 59⁠1/2⁠lb double crown | 39lb demy | 139gsm | 37lb bond |
| 100lb double royal 516 | 58⁠1/4⁠lb double crown | 38⁠1/4⁠lb demy | 136gsm | 36⁠1/4⁠lb bond |
| 160lb quad royal 504 | 47⁠1/2⁠lb double crown | 31⁠1/4⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 16lb crown 480 | 33⁠1/4⁠lb double crown | 22lb demy | 78gsm | 20⁠3/4⁠lb bond |
| 20lb crown 480 | 41⁠3/4⁠lb double crown | 27⁠1/4⁠lb demy | 98gsm | 26lb bond |
| 27lb crown 480 | 56⁠1/4⁠lb double crown | 37lb demy | 132gsm | 35lb bond |
| 16lb double foolscap 480 | 21⁠3/4⁠lb double crown | 14⁠1/4⁠lb demy | 51gsm | 13⁠1/2⁠lb bond |
| 21lb double foolscap 480 | 28⁠1/2⁠lb double crown | 18⁠3/4⁠lb demy | 67gsm | 17⁠3/4⁠lb bond |
| 22lb double foolscap 480 | 30lb double crown | 19⁠3/4⁠lb demy | 70gsm | 18⁠3/4⁠lb bond |
| 23lb double foolscap 516 | 29⁠1/4⁠lb double crown | 19lb demy | 68gsm | 18⁠1/4⁠lb bond |
| 24lb double foolscap 480 | 32⁠3/4⁠lb double crown | 21⁠1/2⁠lb demy | 77gsm | 20⁠1/4⁠lb bond |
| 25lb double foolscap 516 | 31⁠3/4⁠lb double crown | 20⁠3/4⁠lb demy | 74gsm | 19⁠3/4⁠lb bond |
| 26lb double foolscap 480 | 35⁠1/2⁠lb double crown | 23⁠1/4⁠lb demy | 83gsm | 22lb bond |
| 28lb double foolscap 480 | 38⁠1/4⁠lb double crown | 25lb demy | 89gsm | 23⁠3/4⁠lb bond |
| 28lb double foolscap 516 | 35⁠1/2⁠lb double crown | 23⁠1/4⁠lb demy | 83gsm | 22lb bond |
| 29lb double foolscap 480 | 39⁠1/2⁠lb double crown | 26lb demy | 93gsm | 24⁠1/2⁠lb bond |
| 30lb double foolscap 480 | 40⁠3/4⁠lb double crown | 26⁠3/4⁠lb demy | 96gsm | 25⁠1/2⁠lb bond |
| 30lb double foolscap 516 | 38lb double crown | 25lb demy | 89gsm | 23⁠3/4⁠lb bond |
| 32lb double foolscap 480 | 43⁠1/2⁠lb double crown | 28⁠1/2⁠lb demy | 102gsm | 27⁠1/4⁠lb bond |
| 36lb double foolscap 480 | 49lb double crown | 32⁠1/4⁠lb demy | 115gsm | 30⁠1/2⁠lb bond |
| 36lb double foolscap 516 | 45⁠1/2⁠lb double crown | 30lb demy | 107gsm | 28⁠1/2⁠lb bond |
| 38lb double foolscap 480 | 51⁠3/4⁠lb double crown | 34lb demy | 121gsm | 32⁠1/4⁠lb bond |
| 40lb double foolscap 480 | 54⁠1/2⁠lb double crown | 35⁠3/4⁠lb demy | 128gsm | 34lb bond |
| 45lb double foolscap 480 | 61⁠1/4⁠lb double crown | 40⁠1/4⁠lb demy | 144gsm | 38⁠1/4⁠lb bond |
| 54lb double foolscap 480 | 73⁠1/2⁠lb double crown | 48⁠1/4⁠lb demy | 172gsm | 45⁠3/4⁠lb bond |
| 67lb double foolscap 480 | 91⁠1/4⁠lb double crown | 59⁠3/4⁠lb demy | 214gsm | 56⁠3/4⁠lb bond |
| 46lb quad foolscap 516 | 29⁠1/4⁠lb double crown | 19lb demy | 68gsm | 18⁠1/4⁠lb bond |
| 48lb quad foolscap 504 | 31lb double crown | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 49lb quad foolscap 516 | 31lb double crown | 20⁠1/4⁠lb demy | 73gsm | 19⁠1/4⁠lb bond |
| 50lb quad foolscap 516 | 31⁠3/4⁠lb double crown | 20⁠3/4⁠lb demy | 74gsm | 19⁠3/4⁠lb bond |
| 56lb quad foolscap 504 | 36⁠1/4⁠lb double crown | 23⁠3/4⁠lb demy | 85gsm | 22⁠3/4⁠lb bond |
| 56lb quad foolscap 516 | 35⁠1/2⁠lb double crown | 23⁠1/4⁠lb demy | 83gsm | 22lb bond |
| 60lb quad foolscap 504 | 39lb double crown | 25⁠1/2⁠lb demy | 91gsm | 24⁠1/4⁠lb bond |
| 60lb quad foolscap 516 | 38lb double crown | 25lb demy | 89gsm | 23⁠3/4⁠lb bond |
| 68lb quad foolscap 480 | 46⁠1/4⁠lb double crown | 30⁠1/2⁠lb demy | 108gsm | 28⁠3/4⁠lb bond |
| 64lb quad demy 516 | 23⁠1/2⁠lb double crown | 15⁠1/2⁠lb demy | 55gsm | 14⁠3/4⁠lb bond |
| 80lb quad demy 516 | 29⁠1/2⁠lb double crown | 19⁠1/2⁠lb demy | 69gsm | 18⁠1/2⁠lb bond |
| 84lb quad demy 516 | 31lb double crown | 20⁠1/4⁠lb demy | 73gsm | 19⁠1/4⁠lb bond |
| 96lb quad demy 504 | 36⁠1/4⁠lb double crown | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 120lb quad demy 504 | 45⁠1/4⁠lb double crown | 29⁠3/4⁠lb demy | 106gsm | 28⁠1/4⁠lb bond |
| 120lb quad demy 516 | 44⁠1/4⁠lb double crown | 29lb demy | 104gsm | 27⁠1/2⁠lb bond |
| 30lb imperial (writing and printing) 516 | 26⁠1/2⁠lb double crown | 17⁠1/4⁠lb demy | 62gsm | 16⁠1/2⁠lb bond |
| 36lb imperial (writing and printing) 516 | 31⁠3/4⁠lb double crown | 20⁠3/4⁠lb demy | 74gsm | 19⁠3/4⁠lb bond |
| 40lb imperial (writing and printing) 516 | 35⁠1/4⁠lb double crown | 23lb demy | 83gsm | 22lb bond |
| 46lb imperial (writing and printing) 480 | 43⁠1/2⁠lb double crown | 28⁠1/2⁠lb demy | 102gsm | 27⁠1/4⁠lb bond |
| 50lb imperial (writing and printing) 516 | 44lb double crown | 29lb demy | 103gsm | 27⁠1/2⁠lb bond |
| 56lb imperial (writing and printing) 480 | 53lb double crown | 34⁠3/4⁠lb demy | 124gsm | 33lb bond |
| 60lb imperial (writing and printing) 516 | 52⁠3/4⁠lb double crown | 34⁠3/4⁠lb demy | 124gsm | 33lb bond |
| 70lb imperial (writing and printing) 480 | 66⁠1/4⁠lb double crown | 43⁠1/2⁠lb demy | 155gsm | 41⁠1/4⁠lb bond |
| 120lb imperial (writing and printing) 516 | 105⁠3/4⁠lb double crown | 69⁠1/4⁠lb demy | 248gsm | 65⁠3/4⁠lb bond |
| 13lb post (printing) (pre–⁠1937 standardisation) 480 | 27⁠1/4⁠lb double crown | 18lb demy | 64gsm | 17lb bond |
| 14lb post (printing) (pre–⁠1937 standardisation) 480 | 29⁠1/4⁠lb double crown | 19⁠1/4⁠lb demy | 69gsm | 18⁠1/4⁠lb bond |
| 22lb post (printing) (pre–⁠1937 standardisation) 480 | 46lb double crown | 30⁠1/4⁠lb demy | 108gsm | 28⁠3/4⁠lb bond |
| 23lb post (printing) (pre–⁠1937 standardisation) 480 | 48⁠1/4⁠lb double crown | 31⁠1/2⁠lb demy | 113gsm | 30lb bond |
| 24lb post (printing) (pre–⁠1937 standardisation) 480 | 50⁠1/4⁠lb double crown | 33lb demy | 118gsm | 31⁠1/4⁠lb bond |
| 16lb large post 480 | 28⁠3/4⁠lb double crown | 19lb demy | 68gsm | 18lb bond |
| 17lb large post 480 | 30⁠3/4⁠lb double crown | 20lb demy | 72gsm | 19lb bond |
| 18lb large post 480 | 32⁠1/2⁠lb double crown | 21⁠1/4⁠lb demy | 76gsm | 20⁠1/4⁠lb bond |
| 18lb large post 500 | 31⁠1/4⁠lb double crown | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 21lb large post 480 | 38lb double crown | 24⁠3/4⁠lb demy | 89gsm | 23⁠1/2⁠lb bond |
| 21lb large post 500 | 36⁠1/4⁠lb double crown | 23⁠3/4⁠lb demy | 85gsm | 22⁠3/4⁠lb bond |
| 21lb large post 504 | 36lb double crown | 23⁠3/4⁠lb demy | 85gsm | 22⁠1/2⁠lb bond |
| 24lb large post 480 | 43⁠1/4⁠lb double crown | 28⁠1/2⁠lb demy | 101gsm | 27lb bond |
| 25lb large post 480 | 45lb double crown | 29⁠1/2⁠lb demy | 106gsm | 28lb bond |
| 26lb large post 480 | 47lb double crown | 30⁠3/4⁠lb demy | 110gsm | 29⁠1/4⁠lb bond |
| 27lb large post 480 | 48⁠3/4⁠lb double crown | 32lb demy | 114gsm | 30⁠1/4⁠lb bond |
| 28lb large post 480 | 50⁠1/2⁠lb double crown | 33lb demy | 118gsm | 31⁠1/2⁠lb bond |
| 29lb large post 480 | 52⁠1/4⁠lb double crown | 34⁠1/4⁠lb demy | 123gsm | 32⁠1/2⁠lb bond |
| 30lb large post 480 | 54lb double crown | 35⁠1/2⁠lb demy | 127gsm | 33⁠3/4⁠lb bond |
| 30lb large post 504 | 51⁠1/2⁠lb double crown | 33⁠3/4⁠lb demy | 121gsm | 32lb bond |
| 31lb large post 480 | 56lb double crown | 36⁠3/4⁠lb demy | 131gsm | 34⁠3/4⁠lb bond |
| 32lb large post 480 | 57⁠3/4⁠lb double crown | 38lb demy | 135gsm | 36lb bond |
| 34lb large post 480 | 61⁠1/4⁠lb double crown | 40⁠1/4⁠lb demy | 144gsm | 38⁠1/4⁠lb bond |
| 36lb large post 480 | 65lb double crown | 42⁠1/2⁠lb demy | 152gsm | 40⁠1/2⁠lb bond |
| 44lb large post 480 | 79⁠1/4⁠lb double crown | 52lb demy | 186gsm | 49⁠1/2⁠lb bond |
| 36lb double large post 516 | 30⁠1/4⁠lb double crown | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 60lb double large post 480 | 54lb double crown | 35⁠1/2⁠lb demy | 127gsm | 33⁠3/4⁠lb bond |
| 60lb double large post 504 | 51⁠1/2⁠lb double crown | 33⁠3/4⁠lb demy | 121gsm | 32lb bond |
| 20lb 12⁠1/2⁠ in-by-19 in 480 | 52⁠1/2⁠lb double crown | 34⁠1/2⁠lb demy | 123gsm | 32⁠3/4⁠lb bond |
| 25lb 15 in-by-22⁠1/2⁠ in 480 | 46⁠1/4⁠lb double crown | 30⁠1/4⁠lb demy | 108gsm | 28⁠3/4⁠lb bond |
| 25lb 15 in-by-23 in 480 | 45⁠1/4⁠lb double crown | 29⁠3/4⁠lb demy | 106gsm | 28⁠1/4⁠lb bond |
| 20lb 15⁠1/2⁠ in-by-18 in 480 | 44⁠3/4⁠lb double crown | 29⁠1/2⁠lb demy | 105gsm | 28lb bond |
| 25lb 17 in-by-23 in 480 | 40lb double crown | 26⁠1/4⁠lb demy | 94gsm | 25lb bond |
| 30lb 17 in-by-23 in 480 | 48lb double crown | 31⁠1/2⁠lb demy | 112gsm | 30lb bond |
| 67lb 20⁠1/2⁠ in-by-25⁠1/2⁠ in 500 | 77lb double crown | 50⁠1/2⁠lb demy | 180gsm | 48lb bond |
| 84lb 20⁠1/2⁠ in-by-25⁠1/2⁠ in 500 | 96⁠1/2⁠lb double crown | 63⁠1/4⁠lb demy | 226gsm | 60lb bond |
| 100lb 20⁠1/2⁠ in-by-25⁠1/2⁠ in 500 | 114⁠3/4⁠lb double crown | 75⁠1/4⁠lb demy | 269gsm | 71⁠1/2⁠lb bond |
| 118lb 20⁠1/2⁠ in-by-25⁠1/2⁠ in 500 | 135⁠1/2⁠lb double crown | 88⁠3/4⁠lb demy | 317gsm | 84⁠1/2⁠lb bond |
| 80lb 20⁠1/2⁠ in-by-30⁠1/2⁠ in 500 | 76⁠3/4⁠lb double crown | 50⁠1/4⁠lb demy | 180gsm | 47⁠3/4⁠lb bond |
| 100lb 20⁠1/2⁠ in-by-30⁠1/2⁠ in 500 | 96lb double crown | 63lb demy | 225gsm | 59⁠3/4⁠lb bond |
| 120lb 20⁠1/2⁠ in-by-30⁠1/2⁠ in 500 | 115⁠1/4⁠lb double crown | 75⁠1/2⁠lb demy | 270gsm | 71⁠3/4⁠lb bond |
| 140lb 20⁠1/2⁠ in-by-30⁠1/2⁠ in 500 | 134⁠1/4⁠lb double crown | 88⁠1/4⁠lb demy | 315gsm | 83⁠3/4⁠lb bond |
| 36lb 21 in-by-29 in 516 | 34⁠1/4⁠lb double crown | 22⁠1/2⁠lb demy | 81gsm | 21⁠1/2⁠lb bond |
| 75lb 21 in-by-30⁠1/2⁠ in 504 | 69⁠3/4⁠lb double crown | 45⁠3/4⁠lb demy | 163gsm | 43⁠1/2⁠lb bond |
| 106lb 22 in-by-25 in 500 | 115⁠3/4⁠lb double crown | 75⁠3/4⁠lb demy | 271gsm | 72lb bond |
| 124lb 22 in-by-25 in 500 | 135⁠1/4⁠lb double crown | 88⁠3/4⁠lb demy | 317gsm | 84⁠1/4⁠lb bond |
| 190lb 22 in-by-25 in 500 | 207⁠1/4⁠lb double crown | 136lb demy | 486gsm | 129⁠1/4⁠lb bond |
| 122lb 22 in-by-29 in 500 | 114⁠3/4⁠lb double crown | 75⁠1/4⁠lb demy | 269gsm | 71⁠1/2⁠lb bond |
| 144lb 22 in-by-29 in 500 | 135⁠1/2⁠lb double crown | 88⁠3/4⁠lb demy | 317gsm | 84⁠1/2⁠lb bond |
| 220lb 22 in-by-29 in 500 | 207lb double crown | 135⁠3/4⁠lb demy | 485gsm | 129lb bond |
| Wrapping paper |||||
| Common British basis weights (various paper sizes and ream sizes) | Equivalent weight of a 500‑sheet ream of double imperial paper, a British wrapping paper commonly used to express the basis weight of wrapping paper (rounded to the nearest quarter) (a common British basis for intra‑category comparison) | Equivalent weight of a 500‑sheet ream of demy paper, a British uncut printing paper commonly used by default to express the basis weight of different types of paper (rounded to the nearest quarter) (a common British basis for cross‑category comparison) | Equivalent grammage (rounded to the nearest one) | Equivalent weight of a 500‑sheet ream of bond paper, an American uncut paper commonly used to express the basis weight of paper (rounded to the nearest quarter) (a common American basis for cross‑category comparison) |
| 28lb bag cap (pre–⁠1937 standardisation) 480 | 81⁠1/4⁠lb double imperial (wrapping) | 24⁠1/2⁠lb demy | 88gsm | 23⁠1/4⁠lb bond |
| 40lb bag cap (pre–⁠1937 standardisation) 480 | 116⁠1/4⁠lb double imperial (wrapping) | 35lb demy | 125gsm | 33⁠1/4⁠lb bond |
| 50lb casing 480 | 41lb double imperial (wrapping) | 12⁠1/2⁠lb demy | 44gsm | 11⁠3/4⁠lb bond |
| 60lb casing 480 | 49⁠1/4⁠lb double imperial (wrapping) | 14⁠3/4⁠lb demy | 53gsm | 14lb bond |
| 70lb casing 480 | 57⁠1/2⁠lb double imperial (wrapping) | 17⁠1/4⁠lb demy | 62gsm | 16⁠1/2⁠lb bond |
| 80lb casing 480 | 65⁠3/4⁠lb double imperial (wrapping) | 19⁠3/4⁠lb demy | 71gsm | 18⁠3/4⁠lb bond |
| 100lb casing 480 | 82lb double imperial (wrapping) | 24⁠3/4⁠lb demy | 88gsm | 23⁠1/2⁠lb bond |
| 120lb casing 480 | 98⁠1/2⁠lb double imperial (wrapping) | 29⁠3/4⁠lb demy | 106gsm | 28⁠1/4⁠lb bond |
| 140lb casing 480 | 115lb double imperial (wrapping) | 34⁠3/4⁠lb demy | 124gsm | 33lb bond |
| 160lb casing 480 | 131⁠1/4⁠lb double imperial (wrapping) | 39⁠3/4⁠lb demy | 142gsm | 37⁠3/4⁠lb bond |
| 13lb double crown 480 | 29⁠1/2⁠lb double imperial (wrapping) | 9lb demy | 32gsm | 8⁠1/2⁠lb bond |
| 15lb double crown 480 | 34lb double imperial (wrapping) | 10⁠1/4⁠lb demy | 37gsm | 9⁠3/4⁠lb bond |
| 19lb double crown 480 | 43lb double imperial (wrapping) | 13lb demy | 46gsm | 12⁠1/4⁠lb bond |
| 23lb double crown 480 | 52lb double imperial (wrapping) | 15⁠3/4⁠lb demy | 56gsm | 15lb bond |
| 24lb double crown 480 | 54⁠1/2⁠lb double imperial (wrapping) | 16⁠1/2⁠lb demy | 59gsm | 15⁠1/2⁠lb bond |
| 47lb double crown 480 | 106⁠1/2⁠lb double imperial (wrapping) | 32lb demy | 115gsm | 30⁠1/2⁠lb bond |
| 80lb double crown 480 | 181⁠1/4⁠lb double imperial (wrapping) | 54⁠3/4⁠lb demy | 195gsm | 52lb bond |
| 100lb double crown 480 | 226⁠1/2⁠lb double imperial (wrapping) | 68⁠1/4⁠lb demy | 244gsm | 65lb bond |
| 120lb double crown 480 | 272lb double imperial (wrapping) | 82lb demy | 293gsm | 78lb bond |
| 34lb quad crown 480 | 38⁠1/2⁠lb double imperial (wrapping) | 11⁠1/2⁠lb demy | 42gsm | 11lb bond |
| 38lb quad crown 480 | 43lb double imperial (wrapping) | 13lb demy | 46gsm | 12⁠1/4⁠lb bond |
| 48lb quad crown 504 | 51⁠3/4⁠lb double imperial (wrapping) | 15⁠1/2⁠lb demy | 56gsm | 14⁠3/4⁠lb bond |
| 120lb quad crown 516 | 126⁠1/2⁠lb double imperial (wrapping) | 38⁠1/4⁠lb demy | 136gsm | 36⁠1/4⁠lb bond |
| 15lb demy 480 | 51⁠3/4⁠lb double imperial (wrapping) | 15⁠3/4⁠lb demy | 56gsm | 14⁠3/4⁠lb bond |
| 26lb double demy 480 | 45lb double imperial (wrapping) | 13⁠1/2⁠lb demy | 48gsm | 12⁠3/4⁠lb bond |
| 29lb double demy 516 | 46⁠1/2⁠lb double imperial (wrapping) | 14lb demy | 50gsm | 13⁠1/4⁠lb bond |
| 30lb double demy 480 | 51⁠3/4⁠lb double imperial (wrapping) | 15⁠3/4⁠lb demy | 56gsm | 14⁠3/4⁠lb bond |
| 34lb double demy 480 | 58⁠3/4⁠lb double imperial (wrapping) | 17⁠3/4⁠lb demy | 63gsm | 16⁠3/4⁠lb bond |
| 60lb double demy 480 | 103⁠1/2⁠lb double imperial (wrapping) | 31⁠1/4⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 200lb extra large casing 480 | 141⁠1/2⁠lb double imperial (wrapping) | 42⁠3/4⁠lb demy | 153gsm | 40⁠1/2⁠lb bond |
| 50lb imperial (wrapping) 480 | 104⁠1/4⁠lb double imperial (wrapping) | 31⁠1/2⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 60lb imperial (wrapping) 480 | 125lb double imperial (wrapping) | 37⁠3/4⁠lb demy | 135gsm | 35⁠3/4⁠lb bond |
| 70lb imperial (wrapping) 480 | 145⁠3/4⁠lb double imperial (wrapping) | 44lb demy | 157gsm | 41⁠3/4⁠lb bond |
| 140lb imperial (wrapping) 480 | 291⁠3/4⁠lb double imperial (wrapping) | 88lb demy | 314gsm | 83⁠1/2⁠lb bond |
| 60lb double imperial (wrapping) 480 | 62⁠1/2⁠lb double imperial (wrapping) | 18⁠3/4⁠lb demy | 67gsm | 18lb bond |
| 65lb double imperial (wrapping) 480 | 67⁠3/4⁠lb double imperial (wrapping) | 20⁠1/2⁠lb demy | 73gsm | 19⁠1/2⁠lb bond |
| 80lb double imperial (wrapping) 480 | 83⁠1/4⁠lb double imperial (wrapping) | 25⁠1/4⁠lb demy | 90gsm | 24lb bond |
| 100lb double imperial (wrapping) 480 | 104⁠1/4⁠lb double imperial (wrapping) | 31⁠1/2⁠lb demy | 112gsm | 29⁠3/4⁠lb bond |
| 120lb double imperial (wrapping) 480 | 125lb double imperial (wrapping) | 37⁠3/4⁠lb demy | 135gsm | 35⁠3/4⁠lb bond |
| 140lb double imperial (wrapping) 480 | 145⁠3/4⁠lb double imperial (wrapping) | 44lb demy | 157gsm | 41⁠3/4⁠lb bond |
| 160lb double imperial (wrapping) 480 | 166⁠3/4⁠lb double imperial (wrapping) | 50⁠1/4⁠lb demy | 180gsm | 47⁠3/4⁠lb bond |
| 240lb double imperial (wrapping) 480 | 250lb double imperial (wrapping) | 75⁠1/2⁠lb demy | 269gsm | 71⁠3/4⁠lb bond |
| 240lb double double imperial 480 | 125lb double imperial (wrapping) | 37⁠3/4⁠lb demy | 135gsm | 35⁠3/4⁠lb bond |
| 280lb double double imperial 480 | 145⁠3/4⁠lb double imperial (wrapping) | 44lb demy | 157gsm | 41⁠3/4⁠lb bond |
| 19lb small royal 480 | 56⁠3/4⁠lb double imperial (wrapping) | 17lb demy | 61gsm | 16⁠1/4⁠lb bond |
| 34lb quad small hand 480 | 38⁠1/2⁠lb double imperial (wrapping) | 11⁠1/2⁠lb demy | 42gsm | 11lb bond |
| 38lb quad small hand 480 | 43lb double imperial (wrapping) | 13lb demy | 46gsm | 12⁠1/4⁠lb bond |
| 48lb quad small hand 504 | 51⁠3/4⁠lb double imperial (wrapping) | 15⁠1/2⁠lb demy | 56gsm | 14⁠3/4⁠lb bond |
| 14lb 18 in-by-26 in 480 | 40⁠3/4⁠lb double imperial (wrapping) | 12⁠1/4⁠lb demy | 44gsm | 11⁠3/4⁠lb bond |
| 15lb 18 in-by-26 in 480 | 43⁠1/2⁠lb double imperial (wrapping) | 13⁠1/4⁠lb demy | 47gsm | 12⁠1/2⁠lb bond |
| 190lb 22 in-by-25 in 500 | 450⁠3/4⁠lb double imperial (wrapping) | 136lb demy | 486gsm | 129⁠1/4⁠lb bond |
| 220lb 22 in-by-29 in 500 | 450lb double imperial (wrapping) | 135⁠3/4⁠lb demy | 485gsm | 129lb bond |
| 32lb 25⁠1/2⁠ in-by-35 in 480 | 48⁠3/4⁠lb double imperial (wrapping) | 14⁠3/4⁠lb demy | 53gsm | 14lb bond |
| 26lb 30 in-by-38 in 480 | 31lb double imperial (wrapping) | 9⁠1/4⁠lb demy | 33gsm | 8⁠3/4⁠lb bond |
| 30lb 30 in-by-38 in 480 | 35⁠3/4⁠lb double imperial (wrapping) | 10⁠3/4⁠lb demy | 39gsm | 10⁠1/4⁠lb bond |
| 42lb 30 in-by-38 in 480 | 50lb double imperial (wrapping) | 15lb demy | 54gsm | 14⁠1/4⁠lb bond |
| 180lb 38 in-by-48 in 480 | 134⁠1/4⁠lb double imperial (wrapping) | 40⁠1/2⁠lb demy | 145gsm | 38⁠1/2⁠lb bond |

#### Conversion between British basis weights, American basis weights, and grammage

It is possible to convert between different basis weights – both British and American – and grammage using different conversion formulae.
To convert between the basis weights of different paper with the same basis‑ream size (e. g., from lb large post 500 to lb demy 500), the following formula can be employed:
Area of one sheet of paper in the target ream × Weight of the source ream ÷ Area of one sheet of paper in the source ream
To convert between the basis weights of different paper with different basis‑ream sizes (e. g., from lb large post 480 to lb demy 500), the relevant formula is below:
(Number of sheets of paper in the target ream × Area of one sheet of paper in the target ream) × Weight of the source ream ÷ (Number of sheets of paper in the source ream × Area of one sheet of paper in the source ream)
To convert between the basis weights of the same paper with different basis‑ream sizes (e. g., from lb large post 480 to lb large post 500), one may either use the previous formula or the one below:
Weight of the source ream × Applicable conversion factor from the table below
| To → From ↓ | 480 | 500 | 504 | 516 |
| 480 | … | 1.042 | 1.05 | 1.075 |
| 500 | 0.96 | … | 1.01 | 1.032 |
| 504 | 0...95 | 0.992 | … | 1.022 |
| 516 | 0.93 | 0.969 | 0.977 | … |
To convert from a basis weight to its equivalent grammage, the following is the applicable formula:
Weight of the basis ream × 703,125 ÷ Area of one sheet of paper in the basis ream in square inch × Number of sheets of paper in the basis ream
To convert from grammage to the equivalent basis weight, the formula below can be used:
Area of one sheet of paper in the basis ream in square inch × Number of sheets of paper in the basis ream × Value of gram per square metre ÷ 703,125
Utilising the aforementioned formulae, it is possible to work out the conversion factors for converting between various British and American units of basis weight and the gram per square metre:
Table of conversion factors for British units of basis weight (standardised basis sizes and 500‑sheet basis reams only) and their metric and American equivalents :
| Note 1: Value of lb demy × Relevant conversion factor = Value of the unit in the left column Note 2: Value of a unit in the left column ÷ Relevant conversion factor = Value of lb demy Note 3: To convert between any two units in the left column, Value of the source unit × (Conversion factor for the target unit ÷ Conversion factor for the source unit) Note 4: Note that, as a matter of mathematical relationship, 1 ‘single’ unit (e. g., lb foolscap) is always equal to 2 ‘double’ unit (e. g., lb double foolscap) and 4 ‘quad’ unit (e. g., lb quad foolscap), respectively. By the same token, 1 ‘double’ unit is always equal to ⁠1/2⁠ ‘single’ unit and 2 ‘quad’ unit, respectively; and 1 ‘quad’ unit is always equal to ⁠1/2⁠ ‘double’ unit and ⁠1/4⁠ ‘single’ unit, respectively. Due to the rounding of the conversion factors in this table, calculating with the conversion factors alone may not produce such results automatically. ||
| | lb demy (UK) |
| lb bag cap (UK) | 1.219047 |
| lb casing (the definition on the island of Great Britain) (UK) | 4.205713 |
| lb casing (the definition on the island of Ireland) (UK) | 4.388570 |
| lb double crown (UK) | 1.523809 |
| lb double demy (UK) | 2 |
| lb double double imperial (UK) | 6.628570 |
| lb double elephant (UK) | 2.742856 |
| lb double foolscap (UK) | 1.165714 |
| lb double imperial (writing and printing) (UK) | 3.352380 |
| lb double imperial (wrapping) (UK) | 3.314285 |
| lb double large post (UK) | 1.759999 |
| lb double medium (UK) | 2.102856 |
| lb double post (UK) | 1.447619 |
| lb double royal (UK) | 2.539681 |
| lb double small demy (UK) | 1.574603 |
| lb double small foolscap (UK) | 1.110475 |
| lb extra large casing (UK) | 4.876188 |
| lb foolscap (UK) | 0.582857 |
| lb imperial (writing and printing) (UK) | 1.676190 |
| lb imperial (wrapping) (UK) | 1.657142 |
| lb large post (UK) | 0.880000 |
| lb large royal (UK) | 1.405713 |
| lb medium (UK) | 1.051428 |
| lb post (UK) | 0.723809 |
| lb quad crown (UK) | 3.047619 |
| lb quad demy (UK) | 4 |
| lb quad foolscap (UK) | 2.331429 |
| lb royal (UK) | 1.269840 |
| lb saddleback (UK) | 4.114285 |
| lb sheet‑and‑a‑half small foolscap (UK) | 0.832857 |
| lb sheet‑and‑a‑third small foolscap (UK) | 0.740317 |
| lb small demy (UK) | 0.787301 |
| lb small foolscap (UK) | 0.555237 |
| lb small royal (UK) | 1.158094 |
| gsm (metric) | 3.571142 |
| lb bond (US) | 0.949841 |
| lb Bristol (US) | 1.628571 |
| lb cover (US) | 1.320634 |
| lb index (US) | 1.975236 |
| lb tag (US) | 2.194284 |
| lb text (US) | 2.412696 |
Table of conversion factors for British units of basis weight (all basis sizes and basis‑ream sizes) and their metric and American equivalents :
| Note 1: Value of lb demy 500 × Relevant conversion factor = Value of the unit in the left column Note 2: Value of a unit in the left column ÷ Relevant conversion factor = Value of lb demy 500 Note 3: To convert between any two units in the left column, Value of the source unit × (Conversion factor for the target unit ÷ Conversion factor for the source unit) Note 4: Note that, as a matter of mathematical relationship, as long as the ream size is the same, 1 ‘single’ unit (e. g., lb crown 500) is always equal to 2 ‘double’ unit (e. g., lb double crown 500) and 4 ‘quad’ unit (e. g., lb quad crown 500), respectively. By the same token, 1 ‘double’ unit is always equal to ⁠1/2⁠ ‘single’ unit and 2 ‘quad’ unit, respectively; and 1 ‘quad’ unit is always equal to ⁠1/2⁠ ‘double’ unit and ⁠1/4⁠ ‘single’ unit, respectively. Due to the rounding of the conversion factors in this table, calculating with the conversion factors alone may not produce such results automatically. ||
| | lb demy 500 (UK) |
| lb atlas 480 (UK) | 2.155275 |
| lb atlas 500 (UK) | 2.245079 |
| lb atlas 504 (UK) | 2.263039 |
| lb atlas 516 (UK) | 2.316921 |
| lb bag cap 480 (the pre–‍1937 standardisation definition) (UK) | 1.141027 |
| lb bag cap 500 (the pre–‍1937 standardisation definition) (UK) | 1.188571 |
| lb bag cap 504 (the pre–‍1937 standardisation definition) (UK) | 1.198079 |
| lb bag cap 516 (the pre–‍1937 standardisation definition) (UK) | 1.226605 |
| lb bag cap 480 (UK) | 1.170285 |
| lb bag cap 500 (UK) | 1.219047 |
| lb bag cap 504 (UK) | 1.228799 |
| lb bag cap 516 (UK) | 1.258056 |
| lb casing 480 (definition on the island of Great Britain) (UK) | 4.037483 |
| lb casing 500 (definition on the island of Great Britain) (UK) | 4.205713 |
| lb casing 504 (definition on the island of Great Britain) (UK) | 4.239357 |
| lb casing 516 (definition on the island of Great Britain) (UK) | 4.340294 |
| lb casing 480 (definition on the island of Ireland) (UK) | 4.213026 |
| lb casing 500 (definition on the island of Ireland) (UK) | 4.388570 |
| lb casing 504 (definition on the island of Ireland) (UK) | 4.423677 |
| lb casing 516 (definition on the island of Ireland) (UK) | 4.529003 |
| lb copy 480 (UK) | 0.804571 |
| lb copy 500 (UK) | 0.838095 |
| lb copy 504 (UK) | 0.844799 |
| lb copy 516 (UK) | 0.864914 |
| lb crown 480 (UK) | 0.731428 |
| lb crown 500 (UK) | 0.761905 |
| lb crown 504 (UK) | 0.768000 |
| lb crown 516 (UK) | 0.786285 |
| lb demy 480 (UK) | 0.960000 |
| lb demy 504 (UK) | 1.008000 |
| lb demy 516 (UK) | 1.032000 |
| lb double bag cap 480 (UK) | 2.282055 |
| lb double bag cap 500 (UK) | 2.377142 |
| lb double bag cap 504 (UK) | 2.396159 |
| lb double bag cap 516 (UK) | 2.453210 |
| lb double crown 480 (UK) | 1.462856 |
| lb double crown 500 (UK) | 1.523809 |
| lb double crown 504 (UK) | 1.535999 |
| lb double crown 516 (UK) | 1.572571 |
| lb double demy 480 (UK) | 1.919999 |
| lb double demy 500 (UK) | 2 |
| lb double demy 504 (UK) | 2.015999 |
| lb double demy 516 (UK) | 2.063999 |
| lb double double imperial 480 (UK) | 6.363425 |
| lb double double imperial 500 (UK) | 6.628570 |
| lb double double imperial 504 (UK) | 6.681596 |
| lb double double imperial 516 (UK) | 6.840682 |
| lb double elephant (writing and printing) 480 (UK) | 2.633141 |
| lb double elephant (writing and printing) 500 (UK) | 2.742856 |
| lb double elephant (writing and printing) 504 (UK) | 2.764798 |
| lb double elephant (writing and printing) 516 (UK) | 2.830627 |
| lb double elephant (wrapping) 480 (UK) | 3.476721 |
| lb double elephant (wrapping) 500 (UK) | 3.621586 |
| lb double elephant (wrapping) 504 (UK) | 3.650557 |
| lb double elephant (wrapping) 516 (UK) | 3.737475 |
| lb double foolscap 480 (UK) | 1.119085 |
| lb double foolscap 500 (UK) | 1.165714 |
| lb double foolscap 504 (UK) | 1.175040 |
| lb double foolscap 516 (UK) | 1.203017 |
| lb double globe 480 (UK) | 2.594132 |
| lb double globe 500 (UK) | 2.702221 |
| lb double globe 504 (UK) | 2.723838 |
| lb double globe 516 (UK) | 2.788691 |
| lb double imperial (writing and printing) 480 (UK) | 3.218284 |
| lb double imperial (writing and printing) 500 (UK) | 3.352380 |
| lb double imperial (writing and printing) 504 (UK) | 3.379198 |
| lb double imperial (writing and printing) 516 (UK) | 3.459655 |
| lb double imperial (wrapping) 480 (UK) | 3.181712 |
| lb double imperial (wrapping) 500 (UK) | 3.314285 |
| lb double imperial (wrapping) 504 (UK) | 3.340798 |
| lb double imperial (wrapping) 516 (UK) | 3.420341 |
| lb double large post 480 (UK) | 1.689599 |
| lb double large post 500 (UK) | 1.759999 |
| lb double large post 504 (UK) | 1.774079 |
| lb double large post 516 (UK) | 1.816319 |
| lb double medium 480 (UK) | 2.018741 |
| lb double medium 500 (UK) | 2.102856 |
| lb double medium 504 (UK) | 2.119678 |
| lb double medium 516 (UK) | 2.170147 |
| lb double post (writing) 480 (the pre–‍1937 standardisation definition) (UK) | 1.412875 |
| lb double post (writing) 500 (the pre–‍1937 standardisation definition) (UK) | 1.471745 |
| lb double post (writing) 504 (the pre–‍1937 standardisation definition) (UK) | 1.483518 |
| lb double post (writing) 516 (the pre–‍1937 standardisation definition) (UK) | 1.518840 |
| lb double post (printing) 480 (the pre–‍1937 standardisation definition) (UK) | 1.454932 |
| lb double post (printing) 500 (the pre–‍1937 standardisation definition) (UK) | 1.515555 |
| lb double post (printing) 504 (the pre–‍1937 standardisation definition) (UK) | 1.527679 |
| lb double post (printing) 516 (the pre–‍1937 standardisation definition) (UK) | 1.564052 |
| lb double post 480 (UK) | 1.389714 |
| lb double post 500 (UK) | 1.447619 |
| lb double post 504 (UK) | 1.459199 |
| lb double post 516 (UK) | 1.493942 |
| lb double pott 480 (UK) | 0.914285 |
| lb double pott 500 (UK) | 0.952380 |
| lb double pott 504 (UK) | 0.959999 |
| lb double pott 516 (UK) | 0.982856 |
| lb double royal 480 (UK) | 2.438093 |
| lb double royal 500 (UK) | 2.539681 |
| lb double royal 504 (UK) | 2.559998 |
| lb double royal 516 (UK) | 2.620950 |
| lb double small cap 480 (UK) | 2.072379 |
| lb double small cap 500 (UK) | 2.158729 |
| lb double small cap 504 (UK) | 2.175998 |
| lb double small cap 516 (UK) | 2.227808 |
| lb double small demy 480 (UK) | 1.511618 |
| lb double small demy 500 (UK) | 1.574603 |
| lb double small demy 504 (UK) | 1.587199 |
| lb double small demy 516 (UK) | 1.624990 |
| lb double small foolscap 480 (UK) | 1.066056 |
| lb double small foolscap 500 (UK) | 1.110475 |
| lb double small foolscap 504 (UK) | 1.119359 |
| lb double small foolscap 516 (UK) | 1.146010 |
| lb double small hand 480 (UK) | 1.414095 |
| lb double small hand 500 (UK) | 1.473016 |
| lb double small hand 504 (UK) | 1.484799 |
| lb double small hand 516 (UK) | 1.520152 |
| lb double small royal 480 (UK) | 2.223541 |
| lb double small royal 500 (UK) | 2.316189 |
| lb double small royal 504 (UK) | 2.334718 |
| lb double small royal 516 (UK) | 2.620950 |
| lb elephant (writing and printing) 480 (UK) | 1.570132 |
| lb elephant (writing and printing) 500 (UK) | 1.635555 |
| lb elephant (writing and printing) 504 (UK) | 1.648639 |
| lb elephant (writing and printing) 516 (UK) | 1.687892 |
| lb elephant (wrapping) 480 (UK) | 1.872456 |
| lb elephant (wrapping) 500 (UK) | 1.950475 |
| lb elephant (wrapping) 504 (UK) | 1.966078 |
| lb elephant (wrapping) 516 (UK) | 2.012890 |
| lb extra large casing 480 (UK) | 4.681139 |
| lb extra large casing 500 (UK) | 4.876188 |
| lb extra large casing 504 (UK) | 4.915196 |
| lb extra large casing 516 (UK) | 5.032225 |
| lb foolscap 480 (UK) | 0.559543 |
| lb foolscap 500 (UK) | 0.582857 |
| lb foolscap 504 (UK) | 0.587520 |
| lb foolscap 516 (UK) | 0.601508 |
| lb haven cap 480 (UK) | 1.331199 |
| lb haven cap 500 (UK) | 1.386666 |
| lb haven cap 504 (UK) | 1.397759 |
| lb haven cap 516 (UK) | 1.431039 |
| lb imperial (writing and printing) 480 (UK) | 1.609142 |
| lb imperial (writing and printing) 500 (UK) | 1.676190 |
| lb imperial (writing and printing) 504 (UK) | 1.689599 |
| lb imperial (writing and printing) 516 (UK) | 1.729827 |
| lb imperial (wrapping) 480 (UK) | 1.590856 |
| lb imperial (wrapping) 500 (UK) | 1.657142 |
| lb imperial (wrapping) 504 (UK) | 1.670399 |
| lb imperial (wrapping) 516 (UK) | 1.710170 |
| lb Kent cap 480 (UK) | 0.959999 |
| lb Kent cap 500 (UK) | 0.999999 |
| lb Kent cap 504 (UK) | 1.007999 |
| lb Kent cap 516 (UK) | 1.031999 |
| lb large post 480 (UK) | 0.844799 |
| lb large post 500 (UK) | 0.880000 |
| lb large post 504 (UK) | 0.887039 |
| lb large post 516 (UK) | 0.908159 |
| lb large royal 480 (the pre–‍1937 standardisation definition) (UK) | 1.316571 |
| lb large royal 500 (the pre–‍1937 standardisation definition) (UK) | 1.371428 |
| lb large royal 504 (the pre–‍1937 standardisation definition) (UK) | 1.382399 |
| lb large royal 516 (the pre–‍1937 standardisation definition) (UK) | 1.415314 |
| lb large royal 480 (UK) | 1.349484 |
| lb large royal 500 (UK) | 1.405713 |
| lb large royal 504 (UK) | 1.416958 |
| lb large royal 516 (UK) | 1.450696 |
| lb lumber hand 480 (UK) | 0.960000 |
| lb lumber hand 500 (UK) | 1 |
| lb lumber hand 504 (UK) | 1.008000 |
| lb lumber hand 516 (UK) | 1.032000 |
| lb medium 480 (UK) | 1.009371 |
| lb medium 500 (UK) | 1.051428 |
| lb medium 504 (UK) | 1.059839 |
| lb medium 516 (UK) | 1.085073 |
| lb music demy 480 (UK) | 0.727238 |
| lb music demy 500 (UK) | 0.757540 |
| lb music demy 504 (UK) | 0.763600 |
| lb music demy 516 (UK) | 0.781781 |
| lb pinched post 480 (UK) | 0.665295 |
| lb pinched post 500 (UK) | 0.693016 |
| lb pinched post 504 (UK) | 0.698559 |
| lb pinched post 516 (UK) | 0.715192 |
| lb post (writing) 480 (the pre–‍1925 standardisation definition) (UK) | 0.706437 |
| lb post (writing) 500 (the pre–‍1925 standardisation definition) (UK) | 0.735872 |
| lb post (writing) 504 (the pre–‍1925 standardisation definition) (UK) | 0.741759 |
| lb post (writing) 516 (the pre–‍1925 standardisation definition) (UK) | 0.759420 |
| lb post (printing) 480 (the pre–‍1925 standardisation definition) (UK) | 0.727466 |
| lb post (printing) 500 (the pre–‍1925 standardisation definition) (UK) | 0.757777 |
| lb post (printing) 504 (the pre–‍1925 standardisation definition) (UK) | 0.763839 |
| lb post (printing) 516 (the pre–‍1925 standardisation definition) (UK) | 0.782026 |
| lb post 480 (UK) | 0.694857 |
| lb post 500 (UK) | 0.723809 |
| lb post 504 (UK) | 0.729600 |
| lb post 516 (UK) | 0.746971 |
| lb pott 480 (UK) | 0.457143 |
| lb pott 500 (UK) | 0.476191 |
| lb pott 504 (UK) | 0.480000 |
| lb pott 516 (UK) | 0.491429 |
| lb quad crown 480 (UK) | 2.925713 |
| lb quad crown 500 (UK) | 3.047619 |
| lb quad crown 504 (UK) | 3.071998 |
| lb quad crown 516 (UK) | 3.145141 |
| lb quad demy 480 (UK) | 3.839999 |
| lb quad demy 500 (UK) | 4 |
| lb quad demy 504 (UK) | 4.031999 |
| lb quad demy 516 (UK) | 4.127999 |
| lb quad foolscap 480 (UK) | 2.238171 |
| lb quad foolscap 500 (UK) | 2.331429 |
| lb quad foolscap 504 (UK) | 2.350080 |
| lb quad foolscap 516 (UK) | 2.406034 |
| lb quad globe 480 (UK) | 5.188263 |
| lb quad globe 500 (UK) | 5.404442 |
| lb quad globe 504 (UK) | 5.447676 |
| lb quad globe 516 (UK) | 5.577383 |
| lb quad pott 480 (UK) | 1.828572 |
| lb quad pott 500 (UK) | 1.904763 |
| lb quad pott 504 (UK) | 1.920000 |
| lb quad pott 516 (UK) | 1.965715 |
| lb quad royal 480 (UK) | 4.876186 |
| lb quad royal 500 (UK) | 5.079362 |
| lb quad royal 504 (UK) | 5.119995 |
| lb quad royal 516 (UK) | 5.241900 |
| lb quad small hand 480 (UK) | 2.925712 |
| lb quad small hand 500 (UK) | 3.047618 |
| lb quad small hand 504 (UK) | 3.071998 |
| lb quad small hand 516 (UK) | 3.145140 |
| lb royal 480 (UK) | 1.219046 |
| lb royal 500 (UK) | 1.269840 |
| lb royal 504 (UK) | 1.279999 |
| lb royal 516 (UK) | 1.310475 |
| lb saddleback 480 (UK) | 3.949712 |
| lb saddleback 500 (UK) | 4.114285 |
| lb saddleback 504 (UK) | 4.147198 |
| lb saddleback 516 (UK) | 4.245940 |
| lb sheet‑and‑a‑half small foolscap 480 (the pre–‍1925 standardisation definition) (UK) | 0.791466 |
| lb sheet‑and‑a‑half small foolscap 500 (the pre–‍1925 standardisation definition) (UK) | 0.824444 |
| lb sheet‑and‑a‑half small foolscap 504 (the pre–‍1925 standardisation definition) (UK) | 0.831040 |
| lb sheet‑and‑a‑half small foolscap 516 (the pre–‍1925 standardisation definition) (UK) | 0.850826 |
| lb sheet‑and‑a‑half small foolscap 480 (UK) | 0.799543 |
| lb sheet‑and‑a‑half small foolscap 500 (UK) | 0.832857 |
| lb sheet‑and‑a‑half small foolscap 504 (UK) | 0.839520 |
| lb sheet‑and‑a‑half small foolscap 516 (UK) | 0.859508 |
| lb sheet‑and‑a‑third small foolscap 480 (UK) | 0.710704 |
| lb sheet‑and‑a‑third small foolscap 500 (UK) | 0.740317 |
| lb sheet‑and‑a‑third small foolscap 504 (UK) | 0.746240 |
| lb sheet‑and‑a‑third small foolscap 516 (UK) | 0.764007 |
| lb small cap 480 (UK) | 1.036190 |
| lb small cap 500 (UK) | 1.079364 |
| lb small cap 504 (UK) | 1.087999 |
| lb small cap 516 (UK) | 1.113904 |
| lb small demy 480 (UK) | 0.755809 |
| lb small demy 500 (UK) | 0.787301 |
| lb small demy 504 (UK) | 0.793599 |
| lb small demy 516 (UK) | 0.812495 |
| lb small foolscap 480 (UK) | 0.533028 |
| lb small foolscap 500 (UK) | 0.555237 |
| lb small foolscap 504 (UK) | 0.559679 |
| lb small foolscap 516 (UK) | 0.573005 |
| lb small hand 480 (UK) | 0.731428 |
| lb small hand 500 (UK) | 0.761905 |
| lb small hand 504 (UK) | 0.768000 |
| lb small hand 516 (UK) | 0.786285 |
| lb small medium 480 (UK) | 0.938666 |
| lb small medium 500 (UK) | 0.977777 |
| lb small medium 504 (UK) | 0.985599 |
| lb small medium 516 (UK) | 1.009066 |
| lb small post 480 (UK) | 0.654018 |
| lb small post 500 (UK) | 0.681269 |
| lb small post 504 (UK) | 0.686719 |
| lb small post 516 (UK) | 0.703070 |
| lb small royal 480 (UK) | 1.111770 |
| lb small royal 500 (UK) | 1.158094 |
| lb small royal 504 (UK) | 1.167359 |
| lb small royal 516 (UK) | 1.195153 |
| lb super royal (writing) 480 (the pre–‍1925 standardisation definition) (UK) | 1.267199 |
| lb super royal (writing) 500 (the pre–‍1925 standardisation definition) (UK) | 1.319999 |
| lb super royal (writing) 504 (the pre–‍1925 standardisation definition) (UK) | 1.330559 |
| lb super royal (writing) 516 (the pre–‍1925 standardisation definition) (UK) | 1.362239 |
| lb super royal (printing) 480 (the pre–‍1925 standardisation definition) (UK) | 1.374475 |
| lb super royal (printing) 500 (the pre–‍1925 standardisation definition) (UK) | 1.431745 |
| lb super royal (printing) 504 (the pre–‍1925 standardisation definition) (UK) | 1.443199 |
| lb super royal (printing) 516 (the pre–‍1925 standardisation definition) (UK) | 1.477561 |
| lb super royal 480 (UK) | 1.250742 |
| lb super royal 500 (UK) | 1.302856 |
| lb super royal 504 (UK) | 1.313279 |
| lb super royal 516 (UK) | 1.344547 |
| lb 20″‑by‑24″ 480 (UK) | 1.170285 |
| lb 20″‑by‑24″ 500 (UK) | 1.219047 |
| lb 20″‑by‑24″ 504 (UK) | 1.228799 |
| lb 20″‑by‑24″ 516 (UK) | 1.258056 |
| lb 20″‑by‑28″ 480 (UK) | 1.365333 |
| lb 20″‑by‑28″ 500 (UK) | 1.422222 |
| lb 20″‑by‑28″ 504 (UK) | 1.433599 |
| lb 20″‑by‑28″ 516 (UK) | 1.467733 |
| lb 21″‑by‑31″ 480 (UK) | 1.587199 |
| lb 21″‑by‑31″ 500 (UK) | 1.653333 |
| lb 21″‑by‑31″ 504 (UK) | 1.666559 |
| lb 21″‑by‑31″ 516 (UK) | 1.706239 |
| lb 21″‑by‑34″ 480 (UK) | 1.740799 |
| lb 21″‑by‑34″ 500 (UK) | 1.813333 |
| lb 21″‑by‑34″ 504 (UK) | 1.827839 |
| lb 21″‑by‑34″ 516 (UK) | 1.871359 |
| lb 22″‑by‑32″ 480 (UK) | 1.716418 |
| lb 22″‑by‑32″ 500 (UK) | 1.787936 |
| lb 22″‑by‑32″ 504 (UK) | 1.802239 |
| lb 22″‑by‑32″ 516 (UK) | 1.845149 |
| lb 22″‑by‑35″ 480 (UK) | 1.877332 |
| lb 22″‑by‑35″ 500 (UK) | 1.955555 |
| lb 22″‑by‑35″ 504 (UK) | 1.971198 |
| lb 22″‑by‑35″ 516 (UK) | 2.018132 |
| lb 23″‑by‑34″ 480 (UK) | 1.906589 |
| lb 23″‑by‑34″ 500 (UK) | 1.986031 |
| lb 23″‑by‑34″ 504 (UK) | 2.001918 |
| lb 23″‑by‑34″ 516 (UK) | 2.049583 |
| lb 24″‑by‑30″ 480 (UK) | 1.755427 |
| lb 24″‑by‑30″ 500 (UK) | 1.828571 |
| lb 24″‑by‑30″ 504 (UK) | 1.843199 |
| lb 24″‑by‑30″ 516 (UK) | 1.887084 |
| lb 24″‑by‑36″ 480 (UK) | 2.106512 |
| lb 24″‑by‑36″ 500 (UK) | 2.194284 |
| lb 24″‑by‑36″ 504 (UK) | 2.211838 |
| lb 24″‑by‑36″ 516 (UK) | 2.264501 |
| lb 24″‑by‑40″ 480 (UK) | 2.340569 |
| lb 24″‑by‑40″ 500 (UK) | 2.438094 |
| lb 24″‑by‑40″ 504 (UK) | 2.457598 |
| lb 24″‑by‑40″ 516 (UK) | 2.516112 |
| lb 26″‑by‑36″ 480 (UK) | 2.282056 |
| lb 26″‑by‑36″ 500 (UK) | 2.377142 |
| lb 26″‑by‑36″ 504 (UK) | 2.396159 |
| lb 26″‑by‑36″ 516 (UK) | 2.453210 |
| lb 28″‑by‑45″ 480 (UK) | 3.071998 |
| lb 28″‑by‑45″ 500 (UK) | 3.199999 |
| lb 28″‑by‑45″ 504 (UK) | 3.225598 |
| lb 28″‑by‑45″ 516 (UK) | 3.302398 |
| lb 29″‑by‑44″ 480 (UK) | 3.111008 |
| lb 29″‑by‑44″ 500 (UK) | 3.240634 |
| lb 29″‑by‑44″ 504 (UK) | 3.266558 |
| lb 29″‑by‑44″ 516 (UK) | 3.344333 |
| lb 30″‑by‑38″ 480 (UK) | 2.779426 |
| lb 30″‑by‑38″ 500 (UK) | 2.895237 |
| lb 30″‑by‑38″ 504 (UK) | 2.918398 |
| lb 30″‑by‑38″ 516 (UK) | 2.987883 |
| lb 30″‑by‑46″ 480 (UK) | 3.364569 |
| lb 30″‑by‑46″ 500 (UK) | 3.504761 |
| lb 30″‑by‑46″ 504 (UK) | 3.532798 |
| lb 30″‑by‑46″ 516 (UK) | 3.616912 |
| lb 34″‑by‑36″ 480 (UK) | 2.984227 |
| lb 34″‑by‑36″ 500 (UK) | 3.108571 |
| lb 34″‑by‑36″ 504 (UK) | 3.133438 |
| lb 34″‑by‑36″ 516 (UK) | 3.208044 |
| lb 36″‑by‑36″ 480 (UK) | 3.159770 |
| lb 36″‑by‑36″ 500 (UK) | 3.291428 |
| lb 36″‑by‑36″ 504 (UK) | 3.317758 |
| lb 36″‑by‑36″ 516 (UK) | 3.396752 |
| lb 36″‑by‑48″ 480 (UK) | 4.213026 |
| lb 36″‑by‑48″ 500 (UK) | 4.388570 |
| lb 36″‑by‑48″ 504 (UK) | 4.423677 |
| lb 36″‑by‑48″ 516 (UK) | 4.529003 |
| lb 38″‑by‑48″ 480 (UK) | 4.447083 |
| lb 38″‑by‑48″ 500 (UK) | 4.632379 |
| lb 38″‑by‑48″ 504 (UK) | 4.669437 |
| lb 38″‑by‑48″ 516 (UK) | 4.780614 |
| lb 45″‑by‑56″ 480 (UK) | 6.143996 |
| lb 45″‑by‑56″ 500 (UK) | 6.399998 |
| lb 45″‑by‑56″ 504 (UK) | 6.451196 |
| lb 45″‑by‑56″ 516 (UK) | 6.604796 |
| gsm (metric) | 3.571142 |
| lb bond (US) | 0.949841 |
| lb Bristol (US) | 1.628571 |
| lb cover (US) | 1.320634 |
| lb index (US) | 1.975236 |
| lb tag (US) | 2.194284 |
| lb text (US) | 2.412696 |
Using British basis sizes and the 500‑sheet basis‑ream (a traditional British basis‑ream size that coincides with the modern standard definition of ‘ream’), and with the help of the aforementioned conversion formulae or conversion factors, it is possible to express the paper weights of different types of paper in everyday life using British units of basis weight: the typical photocopier paper that is used as all‑purpose paper is 17⁠1/4⁠ or 19⁠3/4⁠lb large post (70 or 80gsm); personal and business letter paper, especially that with engraved letterheads, is typically 24⁠3/4⁠–29⁠1/2⁠lb large post (100–120gsm); greetings cards are usually 85⁠1/4⁠–106⁠3/4⁠lb double crown (200–250gsm); newspaper paper is typically 15–23⁠1/2⁠lb double crown (35–55gsm); business cards are usually 128–149⁠1/4⁠lb double crown (300–350gsm); two‑ply toilet rolls and paper kitchen towels are 7⁠3/4⁠lb double crown (31gsm) (both layers combined) and 17lb double crown (40gsm), respectively; and the typical department‑store wrapping paper is commonly 46⁠1/2⁠–65lb double imperial (50–70gsm). In the traditional British system, large post, double crown, and double imperial are common British basis sizes for writing paper, printing paper and other paper that is not writing or wrapping paper, and wrapping paper, respectively. ‘500’ is omitted because it is clear from the context that a ‘ream’ is 500 sheets.

## Caliper

Paper thickness, or caliper, is a common measurement specified and required for certain printing applications. Since a paper's density is typically not directly known or specified, the thickness of any sheet of paper cannot be calculated by any method. Instead, it is measured and specified separately as its caliper. However, paper thickness for most typical business papers might be similar across comparable brands. If thickness is not specified for a paper in question, it must be either measured or guessed based on a comparable paper's specification.
Caliper is usually measured in micrometres (μm), or in the United States also in mils (1 mil = 1⁄1000 in = 25.4 μm). Commonly, 20-pound bond paper ranges between roughly 97 and 114 μm (0.0038 and 0.0045 in) in thickness.
The paper density is calculated by dividing the grammage over the caliper, and is usually expressed in grams per cubic centimetre (g/cm$^3$) to cancel out the mathematical need for unit conversions between metres and micrometres (a conversion factor of 1,000,000).