Template  is used to convert a value from one unit of measurement to another. This page provides an overview of the options available when using the template.  Help:Convert units • Simplified list of some commonly used units. Help:Convert messages • Error and warning messages.   Asking questions  Template talk:Convert • Questions on using the convert template, or discussion of any problems encountered. Wikipedia:Help desk • General questions. Module talk:Convert • Discussion concerning the convert modules.   Units  Help:Convert units • Simplified list of some commonly used units. Module:Convert/documentation/conversion data/doc • Full list of units.   Quick start  By default, the name of the input unit is shown, while the output is abbreviated using the unit's symbol. If wanted, names or symbols can be used, and the output precision can be specified. {{convert|123.4|ft|m}} →  {{convert|123.4|ft|m|abbr=on}} →  {{convert|123.4|ft|m|abbr=off}} →  {{convert|123.4|ft|m|abbr=off|sp=us}} →  {{convert|123.4|ft|m|0}} →  {{convert|123.4|ft|m|3}} →   To avoid overlinking, units are not normally linked, but they can be when needed. {{convert|12300|m2|rood|abbr=off|lk=on}} →  {{convert|12300|m2|rood|abbr=off|lk=out}} →   A convert can be used in an adjectival phrase, and user-specified text can be inserted. {{convert|1500|ft|m|adj=on}} →  {{convert|1500|ft|m|adj=mid|-long}} →   If no output unit is specified, a default is used. {{convert|123.4|ft}} →  {{convert|123.4|ft|abbr=on}} →  {{convert|1500|ft||adj=mid|-long}} →   The last example used || to explicitly show that the output unit has been omitted. If that is not done, the result is an error, and holding the mouse over the error message shows that "-long" is misinterpreted as the output unit. {{convert|1500|ft|adj=mid|-long}} →   The input and outputs can be "flipped". When flipped, an option such as  means "link the right-hand side". {{convert|12300|m2|rood|abbr=off|lk=out}} →  {{convert|12300|m2|rood|abbr=off|lk=out|disp=flip}} →  {{convert|12300|m2|rood|abbr=off|lk=in|disp=flip}} →   The input value can be spelled. {{convert|5|mi|km|spell=in|0}} →  {{convert|5|mi|km|spell=In|0}} →   Ranges of values are supported. {{convert|3|-|6|ft}} →  {{convert|3|to|6|ft|abbr=off|sp=us}} →   A range can use more than two values. {{convert|100|x|120|x|210|mm|in}} →  {{convert|100|xx|120|xx|210|mm|in}} →  {{convert|100|x|120|x|210|mm|in|abbr=on}} →  {{convert|100|*|120|*|210|mm|in|abbr=on}} →   Some input units consist of multiple components. {{convert|5|ft|8|in}} →  {{convert|11|st|3|lb|kg}} →   An output can be a combination of several units. {{convert|123|nmi|km mi}} →  {{convert|123|hPa|psi inHg|abbr=on|lk=on}} →   Some outputs consist of multiple units. {{convert|123.4|m|ydftin}} →  {{convert|123.4|kg|stlb}} →    Rounding  By default, the output value is rounded to adjust its precision to match that of the input. An input such as 1234 is interpreted as 1234 ± 0.5, while 1200 is interpreted as 1200 ± 50, and the output value is displayed accordingly, taking into account the scale factor used in the conversion.  If the default is not wanted, the precision of output values can be specified using:  |N (where N is a number) to specify the number of digits to be displayed after the decimal mark (round output to N decimal places).  |-N (where -N is a negative number) to specify the number of digits before the decimal mark that should be replaced with zero (round output to nearest 10N).  |sigfig=N (where N is a positive number) to specify the number of significant digits (round output to N significant figures).  |disp=5 to round the output to the nearest multiple of 5.  Examples: {{convert|1234|ft|m}} →  {{convert|1234|ft|m|2}} →  {{convert|1234|ft|m|-1}} →  {{convert|1234|ft|m|disp=5}} →  {{convert|1234|ft|m|sigfig=2}} →  {{convert|1234|ft|m|sigfig=4}} →  {{convert|1230|ft|m}} →  {{convert|1230|ft|m|0}} →  {{convert|1230|ft|m|1}} →  {{convert|5670|sqft}} →  {{convert|5670|sqft|-2}} →    Spell  Use  to specify that unit names should be displayed with US spelling: {{convert|6|km}} →  {{convert|6|km|sp=us}} →   Use  to specify that the input value should be spelled in words, or  (uppercase "I") to start with an uppercase letter: {{convert|5|mi|km|spell=in}} →  {{convert|5|mi|km|spell=in|abbr=off|0}} →  {{convert|5|mi|km|spell=In|0}} →  {{convert|5|mi|km|spell=In|abbr=off|0}} →  {{convert|2+1/4|mi|km|abbr=off|0|spell=In}} →  {{convert|2+1/4|mi|km|abbr=off|0|spell=In|sp=us}} →   The input and output can be "flipped", as shown in these examples which assume that it is reasonable to round the output to the nearest integer: {{convert|5|mi||0|disp=flip|spell=in}} →  {{convert|5|mi||0|disp=flip|spell=In|abbr=off}} →  The "||" provides an empty output unit to mean "use the default".   Fractions  An input value can be specified as a fraction. {{convert|1/2|in|mm|1}} →  {{convert|1/2|in|mm|1|adj=on}} →  {{convert|2+1/2|in|mm|1}} →  {{convert|-2-1/4|in|mm|1}} →  {{convert|1/2|in|mm|1|spell=in}} →   If two slashes are used, a horizontal fraction bar is used. {{convert|1//2|in|mm|1}} →  {{convert|2+1//2|in|mm|1}} →   An output can be expressed with a fraction using |frac=N where N is the denominator. For example, |frac=8 rounds the output to the nearest eighth. {{convert|219|mm|in|abbr=on}} →  {{convert|219|mm|in|abbr=on|frac=2}} →  {{convert|219|mm|in|abbr=on|frac=4}} →  {{convert|219|mm|in|abbr=on|frac=8}} →  {{convert|222|mm|in|abbr=on|frac=8}} →   A fraction is applied to the output unit (if there is only one), or to non-SI units (if using a combination), except that if a precision is also specified, the fraction only applies to the hand unit. {{convert|18.45|in|m|frac=2}} →  {{convert|18.45|in|ft in hand cm|frac=2}} →  {{convert|18.45|in|ft in hand cm|frac=2|1}} →    Joins  The  ("display") option may be used to "join" the input and output, as shown in the following examples.   Convert  Output  Description {{convert|2.4|m|ft}}    default {{convert|2.4|m|ft|disp=b}}    brackets (same as default) {{convert|2.4|m|ft|disp=sqbr}}    square brackets {{convert|2.4|m|ft|disp=or}}    or {{convert|2.4|m|ft|disp=comma}}    comma {{convert|2.4|m|ft|disp=slash}}    slash {{convert|2.4|m|ft|disp=slash|abbr=on}}    slash (not spaced) {{convert|2.4|m|ft|disp=br}}    "<br />", line break   Ranges  A range of values can be specified, as shown in the following examples.   Convert  Output {{convert|3|-|6|ft}}   {{convert|3|–|6|ft}}   {{convert|3|and|6|ft}}   {{convert|3|or|6|ft}}   {{convert|3|to|6|ft}}   {{convert|3|to(-)|6|ft}}   {{convert|3|to about|6|ft}}   {{convert|3|+/-|6|ft}}   {{convert|3|±|6|ft}}   {{convert|3|by|6|ft}}   {{convert|3|x|6|ft}}   {{convert|3|xx|6|ft}}   {{convert|3|*|6|ft}}   {{convert|3|+|6|ft}}   {{convert|3|,|6|ft}}   {{convert|3|, and|6|ft}}   {{convert|3|, or|6|ft}}    The following ranges provide different output when units are abbreviated.   Convert  Output {{convert|3|to(-)|6|ft|abbr=on}}   {{convert|3|x|6|ft|abbr=on}}     Extra words  Some options provide text that is included in the output, as shown in the following examples.   Convert  Output  Description {{convert|4|ft||adj=mid|-long}}    adjectival with mid-text between input and output {{convert|40|acre||adj=pre|planted}}    text before the input unit {{convert|4|m||disp=preunit|+ }}    same text before the input and output units {{convert|4|m||disp=preunit|+ |or more }}    different text before the input and output units {{convert|20|impfloz||disp=x|, approximately }}    text before the output (replaces the join) {{convert|100|m||disp=x|/day (|/day)}}    text before and after the output (replaces the join)  In each of the above examples, "||" provides an empty output unit which causes the default output to be used. An output unit, possibly empty, must be specified to avoid the template interpreting the extra text as the output unit. For example, using {{convert|4|ft|adj=mid|-long}} has the same effect as using {{convert|4|ft|-long|adj=mid}}, namely that an error would occur because "-long" would be used as the output unit. The following illustrates the error (hover the mouse over the error text to see that the problem is due to "-long" ) and how it may be avoided. {{convert|4|ft|adj=mid|-long}} →  {{convert|4|ft||adj=mid|-long}} →  {{convert|4|ft| |adj=mid|-long}} →  {{convert|4|ft|m|adj=mid|-long}} →    Displaying parts of a convert  The following examples show how to display only some of the result of a convert.   Convert  Output  Description {{convert|2|cuyd}}    normal convert {{convert|2|cuyd|disp=unit}}    input unit {{convert|2|cuyd|disp=unit|adj=on}}    input unit, adjectival (hyphenated) {{convert|2|cuyd|disp=unit2}}    output unit (symbol) {{convert|2|cuyd|disp=unit2|abbr=off}}    output unit (name) {{convert|2|cuyd|disp=unit2|abbr=off|sp=us}}    output unit (name, US spelling) {{convert|2|cuyd|abbr=values}}    input and output values {{convert|2|cuyd|disp=number}}    output value {{convert|2|cuyd|disp=out}}    output value and unit {{convert|9+5/8|cuyd|cuyd|disp=number|frac=8}}    input value {{convert|9+5/8|cuyd|cuyd|abbr=off|disp=out|frac=8}}    input value and unit  Tables The following parameters are intended for use in tables.  Parameter  Description |disp=table  for a table cell with align="right" |disp=tablecen  for a table cell with align="center" |sortable=on  output a numeric hidden sort field for a sortable table  The following shows the wikitext output by some example converts.  Convert  Resulting wikitext {{convert|47.5|kg|lb}}  47.5 kilograms (105 lb) {{convert|47.5|kg|lb|disp=table}}  align="right"|47.5|align="right"|105 {{convert|47.5|kg|lb|disp=tablecen}}  align="center"|47.5|align="center"|105 {{convert|47.5|kg|lb|sortable=on}}  <span style="display:none">7001475000000000000</span>47.5 kilograms (105 lb)  Fixed table This wikitext: {|class="wikitable" ! align=right, rowspan="2" | !colspan="2"| Length !colspan="2"| Weight |- style="vertical-align:bottom;" !metres !!ft in !!kg !!lb |- ! Lorem ipsum | {{convert|28.1|m|ftin|disp=table}} | {{convert|47.5|kg|lb|disp=table}} |- ! Dolor sit amet | {{convert|9.9|m|ftin|disp=table}} | {{convert|74.1|kg|lb|disp=table}} |- ! Consectetur | {{convert|38.2|m|ftin|disp=table}} | {{convert|31.5|kg|lb|disp=table}} |- ! Adipisicing elit | {{convert|18.7|m|ftin|disp=table}} | {{convert|52.7|kg|lb|disp=table}} |}  produces this table:  Length Weightmetres ft in kg lb Lorem ipsum   Dolor sit amet   Consectetur   Adipisicing elit    Sortable table This wikitext: {|class="wikitable sortable" ! align=right, rowspan="2" | !colspan="2"| Length !colspan="2"| Weight |- style="vertical-align:bottom;" !metres !!ft in !!kg !!lb |- ! Lorem ipsum | {{convert|28.1|m|ftin|disp=table|sortable=on}} | {{convert|47.5|kg|lb|disp=table|sortable=on}} |- ! Dolor sit amet | {{convert|9.9|m|ftin|disp=table|sortable=on}} | {{convert|74.1|kg|lb|disp=table|sortable=on}} |- ! Consectetur | {{convert|38.2|m|ftin|disp=table|sortable=on}} | {{convert|31.5|kg|lb|disp=table|sortable=on}} |- ! Adipisicing elit | {{convert|18.7|m|ftin|disp=table|sortable=on}} | {{convert|52.7|kg|lb|disp=table|sortable=on}} |}  produces this table:  Length Weightmetres ft in kg lb Lorem ipsum   Dolor sit amet   Consectetur   Adipisicing elit     Options  The following options are available.  Option  Description |abbr=comma  No comma in input or output numbers. |abbr=in  Use symbol for LHS unit. |abbr=off  Use name for all units. |abbr=on  Use symbol for all units. |abbr=out  Use symbol for RHS unit (default). |abbr=values  Show only input and output numbers, not units. |abbr=~  Show input unit symbol as well as name. |adj=1  Unit name is singular when value is 1 or less, but not zero. |adj=flip  Reverse order of input/output. |adj=j  Join value and unit name using "&nbsp;" instead of a space. |adj=mid  Same as adj=on with user-specified text after input unit. |adj=nocomma  No comma in input or output numbers. |adj=on  Unit name is singular and hyphenated. |adj=pre  User-specified text before input unit. |adj=ri1  Round input with precision 1. |adj=ri2  Round input with precision 2. |adj=ri3  Round input with precision 3. |disp=/  Join input/output using "/". |disp=2  Display only output value and symbol/name. |disp=5  Round output value to nearest 5. |disp=b  Join input/output using "(...)". |disp=br  Join input/output using "<br/>". |disp=comma  Join input/output using ",". |disp=flip  Reverse order of input/output. |disp=flip5  Same as disp=flip with disp=5. |disp=nocomma  No comma in input or output numbers. |disp=number  Display output value only. |disp=or  Join input/output using "or". |disp=out  Same as disp=2. |disp=output number only  Same as disp=number. |disp=output only  Same as disp=2. |disp=preunit  User-specified text before input and output units. |disp=s  Same as disp=/. |disp=slash  Same as disp=/. |disp=sqbr  Join input/output using "[...]". |disp=table  Output is suitable for a table cell with align="right". |disp=tablecen  Output is suitable for a table cell with align="center". |disp=u2  Display output symbol/name (not input; not output value). |disp=unit  Display input symbol/name (not output; not input value). |disp=unit2  Same as disp=u2. |disp=x  Join input/output using user-specified text. |comma=5  Only use comma grouping if 5 or more digits. |comma=gaps  Use gaps, not comma, to separate groups of digits. |comma=gaps5  Use gaps, but only if 5 or more digits. |debug=yes  Make the normally hidden sort key visible. |lk=in  Link LHS unit name or symbol. |lk=on  Link all unit names or symbols (but not twice for the same unit). |lk=out  Link RHS unit name or symbol. |sigfig=N  Round output value to N significant figures (N is a positive integer). |sortable=on  Output numeric hidden sort field for use in a sortable table. |sp=us  Use U.S. spelling (like "meter" instead of default "metre"). |spell=in  Spell input value in words. |spell=In  Spell input value in words with first letter uppercase.  Examples of number grouping: {{convert|1234|m|ft}} →  {{convert|1234|m|ft|comma=5}} →  {{convert|12345|m|ft|comma=5}} →  {{convert|1234|m|ft|comma=gaps}} →  {{convert|1234|m|ft|comma=gaps5}} →  {{convert|123,456,789|m|ft|comma=gaps5}} →   Examples of spelling input values: {{convert|10|mi|km|spell=in}} →  {{convert|10|mi|km|spell=In}} →  {{convert|1/3|mi|km|adj=on|spell=in}} →    Differences from templates previously used  Before December 2013,  was implemented by a series of templates, not a module. Following are some differences between the new and old convert implementations. Using {{subst:convert|...}} works with the module. The module checks unit types and displays an error message if a mismatch occurs. The module does not have a problem with template loops, and will allow pointless conversions like {{convert|123|m|m}}. Ranges and all options, including disp=flip, should work with all units. Scaled units like e6USgal are not predefined. With some exceptions, all units accept prefixes e3, e6, e9, e12, e15. The module uses an empty unit code rather than 0 to mean "use the default unit", as in {{convert|4|ft||adj=mid|-long}} (it is also possible to use {{convert|4|ft|0|adj=mid|-long}}, but that sets the output precision to zero). The functionality of {{convert/3}} and {{convert/4}} is handled by the module, except that the module does not support arbitrary text to separate items in a range. Furthermore, the predefined separator words such as "by" and "to" behave in exactly the same manner as they do for standard converts, so a conversion like {{convert/3|2|x|4|x|6|m|ft}} would need to use the new * separator rather than x to produce exactly the same output with the module.   Limitations  This is a list of features that the module may be expected to support, but which will not work.  Composite units cannot be used in a range: {{convert|2|ft|6|in|to|3|ft|9|in}} →   If an expression is wanted, it has to use {{#expr:...}}: {{convert|3*12|ft|mm}} →  {{convert|{{#expr:3*12}}|ft|mm}} →   বিষয়শ্রেণী:উইকিপিডিয়া কীভাবে করবেন