Comparison of the imperial and US customary measurement systems
Volume

Comparison of the imperial and US customary measurement systems

Section Title: Volume
Table Section Text: None

Notes: Approximate values are denoted with ≈ Exact values are denoted with ≡ Definitions are marked in bold

Unit name	Imperial measures	US fluid measures	US dry measures	Metric measures

fluid ounces

Imperial fluid ounce (fl oz)	≡ 1 imp fl oz	≈ 0.96075994040 US fl oz ≈ 0.94710208333 US fl oz (food)	≡ 28.4130625 mL ≡ 0.0284130625 L

US fluid ounce (customary) (fl oz)	≈ 1.04084273079 imp fl oz	≡ 1 US fl oz ≡ 0.98578431875 US fl oz (food)	≡ 29.5735295625 mL ≡ 0.0295735295625 L

US fluid ounce (food nutrition labelling) (fl oz) (food)	≈ 1.05585239184 imp fl oz	≈ 1.01442068106 US fl oz ≡ 1 US fl oz (food)	≡ 30 mL ≡ 0.03 L

pints

Imperial pint (pt)	≡ 20 imp fl oz ≡ 1 imp pt ≡ 0.5 imp qt ≡ 0.125 imp gal	≈ 19.2151988081 US fl oz ≈ 18.9420416667 US fl oz (food) ≈ 1.20094992550 US pt ≈ 0.15011874069 US gal	≈ 1.03205674349 US dry pt ≈ 0.12900709294 US dry gal	≡ 568.26125 mL ≡ 0.56826125 L

US liquid pint (pt)	≈ 16.6534836926 imp fl oz ≈ 0.83267418463 imp pt ≈ 0.10408427308 imp gal	≡ 16 US fl oz ≡ 15.7725491 US fl oz (food) ≡ 1 US pt ≡ 0.5 US qt ≡ 0.125 US gal	≈ 0.859367007375 US dry pt ≈ 0.107420875922 US dry gal	≡ 473.176473 mL ≡ 0.473176473 L

US dry pint (pt)	≈ 19.3787794384 imp fl oz ≈ 0.96893897192 imp pt ≈ 0.12111737149 imp gal	≈ 18.6183549784 US fl oz ≈ 18.3536823786 US fl oz (food) ≈ 1.16364718615 US pt ≈ 0.14545589827 US gal	≡ 1 US dry pt ≡ 0.5 US dry qt ≡ 0.125 US dry gal	≡ 550.6104713575 mL ≡ 0.5506104713575 L

quarts

Imperial quart (qt)	≡ 40 imp fl oz ≡ 1 imp qt ≡ 2 imp pt ≡ 0.25 imp gal	≈ 38.4303976162 US fl oz ≈ 37.8840833333 US fl oz (food) ≈ 1.20094992550 US qt ≈ 0.30023748138 US gal	≈ 1.03205674349 US dry qt ≈ 0.25801418587 US dry gal	≡ 1136.5225 mL ≡ 1.1365225 L

US liquid quart (qt)	≈ 33.3069673852 imp fl oz ≈ 0.83267418463 imp qt ≈ 0.20816854616 imp gal	≡ 32 US fl oz ≡ 31.5450982 US fl oz (food) ≡ 2 US pt ≡ 1 US qt ≡ 0.25 US gal	≈ 0.859367007375 US dry qt ≈ 0.214841751844 US dry gal	≡ 946.352946 mL ≡ 0.946352946 L

US dry quart (qt)	≈ 38.7575588768 imp fl oz ≈ 0.96893897192 imp qt ≈ 0.24223474298 imp gal	≈ 37.2367099567 US fl oz ≈ 36.7073647572 US fl oz (food) ≈ 1.16364718615 US qt ≈ 0.29091179654 US gal	≡ 1 US dry qt ≡ 2 US dry pt ≡ 0.25 US dry gal	≡ 1101.220942715 mL ≡ 1.101220942715 L

gallons

Imperial gallon (gal)	≡ 160 imp fl oz ≡ 4 imp qt ≡ 1 imp gal	≈ 153.721590465 US fl oz ≈ 151.536333333 US fl oz (food) ≈ 1.20094992550 US gal	≈ 4.12822697395 US dry qt ≈ 1.03205674349 US dry gal	≡ 4546.09 mL ≡ 4.54609 L

US liquid gallon (gal)	≈ 133.227869541 imp fl oz ≈ 3.33069673852 imp qt ≈ 0.83267418463 imp gal	≡ 128 US fl oz ≡ 126.1803928 US fl oz (food) ≡ 4 US qt ≡ 1 US gal ≡ 231 cu in	≈ 3.437468029501 US dry qt ≈ 0.859367007375 US dry gal	≡ 3785.411784 mL ≡ 3.785411784 L

US dry gallon (gal)	≈ 155.030235507 imp fl oz ≈ 3.87575588768 imp qt ≈ 0.96893897192 imp gal	≈ 148.946839827 US fl oz ≈ 146.829459029 US fl oz (food) ≈ 4.6545887446 US qt ≈ 1.16364718615 US gal	≡ 4 US dry qt ≡ 1 US dry gal ≡ 268.8025 cu in	≡ 4404.88377086 mL ≡ 4.40488377086 L

metric

litre (l or L or dm3)	≈ 35.1950797279 imp fl oz ≈ 0.87987699320 imp qt ≈ 0.21996924830 imp gal	≈ 33.8140227018 US fl oz ≈ 33.3333333333 US fl oz (food) ≈ 1.05668820943 US qt ≈ 0.26417205236 US gal	≈ 0.90808298427 US dry qt ≈ 0.22702074607 US dry gal	≡ 1000 mL ≡ 1 L

Sentence(s)

The American fluid gallon is equal to 231-cubic-inch.

final_sentence: The American fluid gallon is equal to 231-cubic-inch.