# ଛାଞ୍ଚ:Convert Template documentation[view]  [history] [purge]

Template {{convert}} calculates from one measurement unit to another one, and then presents the results formatted. The complete list of unit symbols recognized by the template is at Module:Convert/documentation/conversion data.

For example:

`{{convert|2|km|mi}}` → ୨ କିଲୋମିଟର (୧.୨ mi) (km entered, so converted into mile)
`{{convert|7|mi|km}}` → ୭ ମାଇଲ (୧୧ କି.ମି.) (mi entered, so converted into km)

Numbers can be rounded, units can be abbreviated into symbols:

`{{convert|2|km|mi|2|abbr=on}}` → ୨ କି.ମି. (୧.୨୪ mi)
`{{convert|7|mi|km|2|abbr=on}}` → ୭ mi (୧୧.୨୭ କି.ମି.)

Value ranges can be entered using `|to|...` or `|-|...`:

`{{convert|2|to|5|km|mi}}` → ୨ to ୫ କିଲୋମିଟର (୧.୨ to ୩.୧ mi)
`{{convert|2|-|5|km|mi}}` → ୨–୫ କିଲୋମିଟର (୧.୨–୩.୧ mi)

Combined effect example:

`{{convert|2|-|5|km|mi|2|abbr=on}}` → ୨–୫ କି.ମି. (୧.୨୪–୩.୧୧ mi)
`{{convert|2|and|5|km|mi|sigfig=3|abbr=off}}` → ୨ and ୫ କିଲୋମିଟର (୧.୨୪ and ୩.୧୧ ମାଇଲ)

## Units to convert

Enter units to convert from into:

• `{{convert|1|lb|kg}}` → ୧ pound (୦.୪୫ kg)
SI units generally accept prefixes, like "m" for milli (10−3), and "M" for mega (106)
For "per" units, use "/" (slash): kg/ha
For three-unit units, etc., see Category:Convert-like templates

## Unit name or symbol (abbreviation): 1 pound or 1 lb?

By default, the first quantity shows the unit name, the second shows the symbol (or abbreviation):

• `{{convert|1|lb|kg}}` → ୧ pound (୦.୪୫ kg)

Using `|abbr=in` is the reverse behaviour to the default:

• `{{convert|1|lb|kg|abbr=in}}` → ୧ lb (୦.୪୫ kilograms)

To abbreviate both or neither:

• `{{convert|1|lb|kg|abbr=on}}` → ୧ lb (୦.୪୫ kg)
• `{{convert|1|lb|kg|abbr=off}}` → ୧ pound (୦.୪୫ kilograms)

### Convenience: {{cvt}} has `|abbr=on` by default

Template {{cvt}} is the same as {{convert}}, except that it has `|abbr=on` as the default behaviour. In {{cvt}}, all other options are available. So:

`{{cvt|1|lb|kg}}`ଛାଞ୍ଚ:Cvt

is equivalent to:

`{{convert|1|lb|kg|abbr=on}}`ଛାଞ୍ଚ:Cvt

Use `|adj=on` to produce the adjectival (hyphenated) form:

• `A {{convert|10|mi|km|adj=on}} distance` → A ୧୦-ମାଇଲ (୧୬ କି.ମି.) distance.

Default behaviour, for comparison:

• `{{convert|10|mi|km}} to go` → ୧୦ ମାଇଲ (୧୬ କି.ମି.) to go.

`|adj=on` does not produce hyphens with unit symbols, as per Manual of Style:

• `A {{convert|9|in|cm|adj=on|abbr=on}} nail` → A ୯ in (୨୩ cm) nail.

## Rounding: 100 ft is 30 m or 30.5 m or 30.48 m?

By definition, 100 ft equals ୩୦.୪୮ m. In practical use, it is common to round the calculated metric number. With that, there are several possibilities.

### Default rounding

By {{Convert}} default, the conversion result will be rounded either to precision comparable to that of the input value (the number of digits after the decimal point—or the negative of the number of non-significant zeroes before the point—is increased by one if the conversion is a multiplication by a number between 0.02 and 0.2, remains the same if the factor is between 0.2 and 2, is decreased by 1 if it is between 2 and 20, and so on) or to two significant digits, whichever is more precise. An exception to this is rounding temperatures (see below).

Examples of rounding
Input Displays as Note
`{{convert|123|ft|m|-1}}` ୧୨୩ feet (୪୦ m)
`{{convert|123|ft|m}}` ୧୨୩ feet (୩୭ m) same output as with 0 (below)
`{{convert|123|ft|m|0}}` ୧୨୩ feet (୩୭ m)
`{{convert|123|ft|m|1}}` ୧୨୩ feet (୩୭.୫ m)
`{{convert|123|ft|m|2}}` ୧୨୩ feet (୩୭.୪୯ m) The more-exact value is 37.4904 m or so, which gets converted to 37 m if this parameter is not specified at all.
`{{convert|500|ft|m|-1}}` ୫୦୦ feet (୧୫୦ m)
`{{convert|500|ft|m}}` ୫୦୦ feet (୧୫୦ m) same output as with −1 (above), because the conversion factor is between 0.2 and 2 (hence, it should produce same double-zero precision (−2) as in the input value), but the conversion must produce two significant digits at a minimum (hence, a higher single-zero precision (−1) is used)
`{{convert|500|ft|m|0}}` ୫୦୦ feet (୧୫୨ m)
`{{convert|500|ft|m|1}}` ୫୦୦ feet (୧୫୨.୪ m)
`{{convert|500|ft|m|2}}` ୫୦୦ feet (୧୫୨.୪୦ m) exact value is 152.4 m
`{{convert|500|ft|cm|-3}}` ୫୦୦ feet (୧୫,୦୦୦ cm)
`{{convert|500|ft|cm}}` ୫୦୦ feet (୧୫,୦୦୦ cm) same output as with −3 (above), because the conversion factor is between 20 and 200 (hence, it should decrease input value's double-zero precision (−2) by 2), but the conversion must produce two significant digits at a minimum (hence, a higher triple-zero precision (−3) is used)
`{{convert|500|ft|cm|0}}` ୫୦୦ feet (୧୫,୨୪୦ cm)

Convert supports four types of rounding:

### Round to a given precision: use a precision number

Specify the desired precision with the fourth unnamed parameter (or third unnamed parameter if the "convert to" parameter is omitted; or fifth unnamed parameter if a range is specified; or fourth unnamed parameter again if a range is specified and the "convert to" parameter is omitted; needs to be replaced with a "precision" named parameter). The conversion is rounded off to the nearest multiple of 110 to the power of this number. For instance, if the result is 8621 and the round number is "-2", the result will be 8600. If the result is "234.0283043" and the round number is "0", the result will be 234.

### Round to a given number of significant figures: `|sigfig=`

To specify the output number to be with n significant figures use `|sigfig=<number>`:

• `{{convert|1200|ft|m|sigfig=4}}` → ୧,୨୦୦ feet (୩୬୫.୮ m)
• `{{convert|1200|ft|m|sigfig=3}}` → ୧,୨୦୦ feet (୩୬୬ m)
• `{{convert|1200|ft|m|sigfig=2}}` → ୧,୨୦୦ feet (୩୭୦ m)
• `{{convert|1200|ft|m|sigfig=1}}` → ୧,୨୦୦ feet (୪୦୦ m)

Default behaviour, for comparison:

• `{{convert|1200|ft|m}}` → ୧,୨୦୦ feet (୩୭୦ m)

Setting `|sigfig=` to a value less than 1 is meaningless:

• `{{convert|1200|ft|m|sigfig=0}}` → ୧,୨୦୦ feet (୩୭୦ m) N

### Round to a multiple of 5: 15, 20, 25, ...

Using `|round=5` rounds the outcome to a multiple of 5.

• `{{convert|10|m|ft}}` → ୧୦ metres (୩୩ ft)
• `{{convert|10|m|ft|round=5}}` → ୧୦ metres (୩୫ ft)

Similar: using `|round=25` rounds the outcome to a multiple of 25.

• `{{convert|10|m|ft}}` → ୧୦ metres (୩୩ ft)
• `{{convert|10|m|ft|round=25}}` → ୧୦ metres (୨୫ ft)

Default behaviour, for comparison:

• `{{convert|10|m|ft|sigfig=4}}` → ୧୦ metres (୩୨.୮୧ ft)

In a range, one can round each value individually to the default. Use `|round=each`:

• `{{convert|10 x 200 x 3000|m|ft}}` → ୧୦ by ୨୦୦ by ୩,୦୦୦ metres (୩୩ ft × ୬୫୬ ft × ୯,୮୪୩ ft)
• `{{convert|10 x 200 x 3000|m|ft|round=each}}` → ୧୦ by ୨୦୦ by ୩,୦୦୦ metres (୩୩ ft × ୬୬୦ ft × ୯,୮୦୦ ft)

### Round to a multiple of a given fraction: 2 3⁄16 inch

Specify the desired denominator using `|frac=<some positive integer>`. (Denominator is the below-the-slash number, for example the 3 in 13).

• `{{convert|5.56|cm|in|frac=16}}` → ୫.୫୬ centimetres ( ୧୬ in)
• `{{convert|8|cm|in|frac=4}}` → ୮ centimetres (  in)

The fraction is reduced when possible:

• `{{convert|8|cm|in|frac=100}}` → ୮ centimetres ( ୨୦ in)

Default behaviour uses decimal notation:

• `{{convert|5.56|cm|in}}` → ୫.୫୬ centimetres (୨.୧୯ in)

### Rounding temperatures: °C, °F and K

In temperatures, the conversion will be rounded either to the precision comparable to that of the input value or to that which would give three significant figures when expressed in kelvins, whichever is more precise.

1. `{{convert|10,000|C|F K}}` → ୧୦,୦୦୦ °C (୧୮,୦୦୦ °F; ୧୦,୩୦୦ K)
2. `{{convert|10,000.1|C|F K}}` → ୧୦,୦୦୦.୧ °C (୧୮,୦୩୨.୨ °F; ୧୦,୨୭୩.୨ K)
3. `{{convert|-272|C|F K}}` → −୨୭୨ °C (−୪୫୭.୬୦ °F; ୧.୧୫ K)
4. `{{convert|-272|C}}` → −୨୭୨ °C (−୪୫୭.୬୦ °F)
5. `{{convert|100|C|F K}}` → ୧୦୦ °C (୨୧୨ °F; ୩୭୩ K)
6. `{{convert|0|C|F K}}` → ୦ °C (୩୨ °F; ୨୭୩ K)

The precision of the input number in example (1) is one digit, but the precision of its Kelvins expression is three, so the precision of the Fahrenheit conversion is made three (made 180...) . (1) and (2) seem to belie the fact that a ୦.୧ degrees Celsius change is a ୦.୧୮ degrees Fahrenheit change, and make the 32 degrees difference shown in (1) begin to seem off somehow. Result (1) seems off until you set the significant figures yourself with `|sigfig=`:

`{{convert|10000|C|sigfig=5}}` → ୧୦,୦୦୦ °C (୧୮,୦୩୨ °F)

or you set the precision positionally, relative to the decimal point (zero being at the decimal point):

`{{convert|10000|C|0}}` → ୧୦,୦୦୦ °C (୧୮,୦୩୨ °F)

The precision of the input number in example (2) is six, so the precision of the Fahrenheit output is, whereas before, Kelvins had determined it to be three. Examples (3) and (4) show how this can be hidden and generate questions, but it occurs there because the Kelvins conversion generated two fractional parts. (Before it was the input number that generated the fractional part.) In example (3) the three input digits converted into five significant output digits because of the two digits after the decimal point, generated by the Kelvins conversion. This happened again in (5), but in (6) decimal fractions were neither given as input nor induced by the Kelvins conversion.

### Rounding input

There is limited support for rounding the displayed input number. The rounding takes place after conversion, so the output is based on the full-precision input. This is useful when the input is produced by `{{#expr:}}` or otherwise available to a higher precision than is usefully displayed, and it's desirable to avoid double-rounding.

To round the input to a specified number of digits after the decimal point, use one of the parameters:

• `|adj=ri0`
• `|adj=ri1`
• `|adj=ri2`
• `|adj=ri3`

Note that there is no `|adj=ri-1` N or similar for rounding above the decimal place. Neither is there support for significant figures, multiples of 5, or any other output-rounding feature.

The default precision is computed based on the input, so an explicit output precision must usually be supplied:

• `{{convert|4.14159|mi|km|adj=ri0}}` → ୪ ମାଇଲ (୬.୬୬୫୨୪ କି.ମି.) N (precisions are mismatched)
• `{{convert|4.14159|mi|km|0|adj=ri0}}` → ୪ ମାଇଲ (୭ କି.ମି.) In this case, if the input were rounded before conversion, a different result would be obtained:

• `{{convert|{{#expr:4.14159 round 0}}|mi|km|0}}` → ୪ ମାଇଲ (୬ କି.ମି.) N (double rounding)

## Into multiple units: ୧୦ °C (୫୦ °F; ୨୮୩ K)

Separate the multiple output units by a space:

• `{{convert|10|C|F K}}` → ୧୦ °C (୫୦ °F; ୨୮୩ K)
• `{{convert|5|km|mi nmi}}` → ୫ କିଲୋମିଟର (୩.୧ mi; ୨.୭ nmi)

If the output unit names contain spaces, use `+` as the separator.

## Ranges of values

A range converts two values and separates them by your choice of words and punctuation.

### A range: 6 to 17 kg (13 to 37 lb)

Range indicators are entered as the second parameter (between the values). Range separators can be:

Range separators in {{convert}}
Separator Convert Result Notes
`-` `{{convert|3|-|6|ft}}` ୩–୬ feet (୦.୯୧–୧.୮୩ m) Input can be hyphen (-) or en dash (–), output uses en dashes
`–` `&ndash;`(en dash) `{{convert|3|–|6|ft}}` ୩–୬ feet (୦.୯୧–୧.୮୩ m)
`and` `{{convert|3|and|6|ft}}` ୩ and ୬ feet (୦.୯୧ and ୧.୮୩ m)
`&` `{{convert|3|&|6|ft}}` ୩ and ୬ feet (୦.୯୧ and ୧.୮୩ m) Same as `and`
`and(-)` `{{convert|3|and(-)|6|ft}}` ୩ and ୬ feet (୦.୯୧–୧.୮୩ m) `|abbr=on` alters the punctuation
`and(-)|abbr=on` `{{convert|3|and(-)|6|ft|abbr=on}}` ୩ and ୬ ft (୦.୯୧–୧.୮୩ m)
`or` `{{convert|3|or|6|ft}}` ୩ or ୬ feet (୦.୯୧ or ୧.୮୩ m)
`to` `{{convert|3|to|6|ft}}` ୩ to ୬ feet (୦.୯୧ to ୧.୮୩ m)
`to(-)` `{{convert|3|to(-)|6|ft}}` ୩ to ୬ feet (୦.୯୧–୧.୮୩ m) `|abbr=on` alters the punctuation
`to(-)|abbr=on` `{{convert|3|to(-)|6|ft|abbr=on}}` ୩ to ୬ ft (୦.୯୧–୧.୮୩ m)
`to about` `{{convert|3|to about|6|ft}}` ୩ to about ୬ feet (୦.୯୧ to about ୧.୮୩ m)
`+/-` `{{convert|3|+/-|6|ft}}` ୩ ± ୬ feet (୦.୯୧ ± ୧.୮୩ m)
`±` `&plusmn;` `{{convert|3|±|6|ft}}` ୩ ± ୬ feet (୦.୯୧ ± ୧.୮୩ m)
`+` `{{convert|3|+|6|ft}}` ୩ + ୬ feet (୦.୯୧ + ୧.୮୩ m)
`,` `{{convert|3|,|6|ft}}` ୩, ୬ feet (୦.୯୧, ୧.୮୩ m)
`, and` `{{convert|3|, and|6|ft}}` ୩, and ୬ feet (୦.୯୧, and ୧.୮୩ m)
`, or` `{{convert|3|, or|6|ft}}` ୩, or ୬ feet (୦.୯୧, or ୧.୮୩ m)
`by` `{{convert|3|by|6|ft}}` ୩ by ୬ feet (୦.୯୧ by ୧.୮୩ m)
`x` `{{convert|3|x|6|ft}}` ୩ by ୬ feet (୦.୯୧ m × ୧.୮୩ m) Scientific notation.
`|abbr=on` alters the punctuation
`×` `&times;` `{{convert|3|×|6|ft}}` ୩ by ୬ feet (୦.୯୧ m × ୧.୮୩ m)
`x|abbr=on` `{{convert|3|x|6|ft|abbr=on}}` ୩ ft × ୬ ft (୦.୯୧ m × ୧.୮୩ m)
`xx` |xx| is deprecated. Use |x| instead
`*` |*| is deprecated. Use |x| instead
`to-` |to-| is deprecated. Use |to(-)| instead
`&` |&| is deprecated. Use |and| instead
`abbr=mos` |abbr=mos is deprecated. Use |x| or |by| instead

### Multiple dimensions: ୬ m × ୧୨ m (୨୦ ft × ୩୯ ft)

Use `by`:

• `{{convert|6|by|12|ft|m}}` → ୬ by ୧୨ feet (୧.୮ by ୩.୭ m)

Use `×`, multiplication sign, or `x`, letter:

• `{{convert|6|x|12|m|ft}}` → ୬ by ୧୨ metres (୨୦ ft × ୩୯ ft)

In science, the formal way is to set `|x|` and `|abbr=on` (keeping dimensions right, like in area = x km2):

• `{{convert|6|x|12|m|ft|abbr=on}}` → ୬ m × ୧୨ m (୨୦ ft × ୩୯ ft)

### Lists of values: 20, 40, or 60 miles

`{{convert|20|,|40|, or|60|mi}}` → ୨୦, ୪୦, or ୬୦ ମାଇଲ (୩୨, ୬୪, or ୯୭ କି.ମି.)

### About feet, inch in ranges and multiples

While it is possible to enter feet, inch in a simple conversion, this is not possible for ranges:

• `{{convert|1|ft|3|in|x|3|ft|5|in|mm}}` → ୧ foot ୩ inches ([convert: %s]%s) N

Default behaviour, for comparison:

• `{{convert|1|ft|3|in|mm}}` → ୧ foot ୩ inches (୩୮୦ mm)

However, converting metric units into feet and inches with `|order=flip` can produce the desired output:

• `{{convert|380|x|1040|mm|ftin|order=flip}}` → ୧ foot ୩ inches by ୩ feet ୫ inches (୩୮୦ mm × ୧,୦୪୦ mm)

## Words

### Spelling of unit name: international metre or US meter?

Default spelling of units is in the en (generic) locale. To show en-US spelling, use `|sp=us`:

`{{convert|1|m|ft}}` → ୧ metre (୩.୩ ft)—default
`{{convert|1|m|ft|sp=us}}` → ୧ meter (୩.୩ ft)

### Spell out numbers: ten miles

To write a number in words, use `|spell=in`:

• `{{convert|10|mi|m|spell=in}}` → ten ମାଇଲ (୧୬,୦୦୦ m)

To spell out both in and out values, use `|spell=on`:

• `{{convert|10|mi|m|spell=on}}` → ten ମାଇଲ (sixteen thousand metres)

To make first letter a capital, use `|spell=In`, `|spell=On`

• `{{convert|10|mi|m|spell=In}}` → Ten ମାଇଲ (୧୬,୦୦୦ m)
• `{{convert|10|mi|m|spell=On}}` → Ten ମାଇଲ (sixteen thousand metres)

Remember that the spelling of the units (ft, m) is independently set by `|abbr=`. To the extreme:

• `{{convert|10|mi|m|spell=on|abbr=off|sp=us}}` → ten ମାଇଲ (sixteen thousand meters)

### Inserted before units: 4 planted acres

• `{{convert|4|acre||adj=pre|planted}}` → ୪ planted acres (୧.୬ ha)

`disp=preunit` is similar, but has no separator after the specified text, and can have different text for the output value:

• `{{convert|4|acre||disp=preunit|planted }}` → ୪ planted acres (୧.୬ planted ha)
• `{{convert|4|acre||disp=preunit|planted |reforested-}}` → ୪ planted acres (୧.୬ reforested-ha)

### After adjective unit: A ୧୦-foot-long corridor

Note that two units (in this case, ft and m) are required. Use with just one unit will generate an error message.

`{{convert|10|ft|m|adj=mid|-long}}` → ୧୦-foot-long (୩.୦ m)

### Plurals: 1 inch, 2 inches

The unit symbol is singular always. Depending on the preceding number only, a unit name can be shown plural.

• `{{convert|1|metre}}` → ୧ metre (୩ ft ୩ in)
• `{{convert|2|metre}}` → ୨ metres (୬ ft ୭ in)
• `{{convert|2|metre|abbr=on}}` → ୨ m (୬ ft ୭ in)
Exception

Entering the unit spelled `|foot|` forces singular output "foot", whatever the number is.

• `{{convert|100|foot|abbr=off}}` → ୧୦୦ foot (୩୦ metres)

### Fractions: one-eighth of an imperial pint

The convert template also supports spelling out fractions.

• `{{convert|3+1/2|oz|g|spell=in}}` → three and a half ounces (୯୯ g)

Any additional words needed for the fraction can also be added at the end of the template.

• `{{convert|1/8|imppt|ml|spell=in|adj=pre|of an}}` → one-eighth of an imperial pint (୭୧ ml)

### Wrapping and line breaking

See Help:Convert § Wrapping and line breaking

### Spelling out "thousands", "millions", etc.

Most unit codes accept a prefix of e3 (thousand) or e6 (million) or e9 (billion).

• `{{convert|100|e6mi|e6km}}` → ୧୦୦ million ମାଇଲ (୧୬୦×୧୦ କି.ମି.)
• `{{convert|120|e6acre}}` → ୧୨୦ million acres (୪୯୦,୦୦୦ କି.ମି.)
• `{{convert|120|e6acre|e3km2}}` → ୧୨୦ million acres (୪୯୦×୧୦ କି.ମି.)

To display both input and output in scientific notation, use `|abbr=on`

• `{{convert|100|e6mi|e6km|abbr=on}}` → ୧୦୦×୧୦ mi (୧୬୦×୧୦ କି.ମି.)

To spell out "thousands", "millions", etc., `|abbr=unit` abbreviates the unit; `|abbr=off` displays both full unit names.

• `{{convert|100|e6mi|e6km|abbr=unit}}` → ୧୦୦ million ମାଇଲ (୧୬୦×୧୦ କି.ମି.)
• `{{convert|100|e6mi|e6km|abbr=off}}` → ୧୦୦ million ମାଇଲ (୧୬୦ million କିଲୋମିଟର)

## Numbers

### Using an SI prefix: gigametre (Gm), or micrometre (μm)

Metric prefixes
Text Symbol Factor
yotta Y 1024
zetta Z 1021
exa E 1018
peta P 1015
tera T 1012
giga G 109
mega M 106
kilo k 103
hecto h 102
deca da 101
(none) (none)  1
deci d 10−1
centi c 10−2
milli m 10−3
micro μ 10−6
nano n 10−9
pico p 10−12
femto f 10−15
atto a 10−18
zepto z 10−21
yocto y 10−24

Units can have an SI prefix like `G` before the unit: `Gm`, and `giga` before the name: `gigametre`. These are plain multiplication factors.

To illustrate, these are trivial calculations (from metre to metre), showing the multiplication factor:

• ୧୨ Gm (୧.୨×୧୦୧୦ m)
• ୧୨ µm (୧.୨×୧୦−୫ m)

The prefix can be added before the SI unit (here: unit `m` for metre):

• `{{convert|12|Gm|mi|abbr=on}}` → ୧୨ Gm (୭,୫୦୦,୦୦୦ mi)
• `Mm`: ୧୨ Mm (୭,୫୦୦ mi)
• `km`: ୧୨ କି.ମି. (୩୯,୦୦୦ ft)
• `mm`: ୧୨ mm (୦.୪୭ in)
• `μm`: ୧୨ µm (୦.୦୧୨ mm)
• `um`: ୧୨ µm (୦.୦୧୨ mm) (letter "u" can be used for "μ" here)

The prefix can be used in the output unit:

• `{{convert|12000|mi|Mm|abbr=on}}` → ୧୨,୦୦୦ mi (୧୯ Mm)
• `{{convert|12|in|μm|abbr=on}}` → ୧୨ in (୩୦୦,୦୦୦ µm)

As an exception, the non-SI unit "inch" can have the "μ" prefix too:

• `{{convert|12|μm|μin|abbr=on}}` → ୧୨ µm (୪୭୦ µin)

### Engineering notation: 7 × 106 m

#### In the unit: e6m

Engineering notation can be entered as a "prefix" to the unit:

• `{{convert|70|e6m}}` → ୭୦×୧୦ m (୨୩୦,୦୦୦,୦୦୦ ft)

The same is possible for the output unit:

• `{{convert|23,000,000|ft|e6m}}` → ୨୩,୦୦୦,୦୦୦ feet (୭.୦×୧୦ m)

Any standard unit (not a combination, multiple, or built-in unit) can have such a prefix:

• `e3` (thousand),
• `e6` (million),
• `e9` (billion),
• `e12` (trillion),
• `e15` (quadrillion).

### Scientific notation: 1.23 × 10−14

In scientific notation, a number is written like ୧.୨୩×10−୧୪. The plain number has exactly one digit before the decimal point.

With {{convert}}, the input can be in e-notation such as `12.3e4`. This value is displayed as a power of ten, and the output is displayed in scientific notation, except that an output value satisfying 0.01 <= v < 1000 is shown as a normal number. In addition, if the output value is 1000 and sigfig=4 is used, the value is displayed as a normal number.

• `{{convert|12.3e-15|atm|atm|abbr=on}}` → ୧୨.୩×୧୦−୧୫ atm (୧.୨୩×୧୦−୧୪ atm)
• `{{convert|0.00000005|atm|atm|abbr=on}}` → ୦.୦୦୦୦୦୦୦୫ atm (୫.୦×୧୦−୮ atm)

### Input with fractions: ୧ ୧⁄୨ inches (୩୮.୧ mm)

The number to convert can be written in fractions. Both `/` (keyboard slash) and `⁄` (fraction slash) are accepted:

• `{{convert|1/2|in|mm|1}}` inch (୧୨.୭ mm)
• `{{convert|1⁄2|in|mm|1}}` inch (୧୨.୭ mm)

With positive mixed numbers (a positive integer and a fraction), use a `+` sign

• `{{convert|2+1⁄2|in|mm|1}}`  inches (୬୩.୫ mm)

With negative mixed numbers, use a hyphen `-` and repeat it:

• `{{convert|-2-1⁄2|in|mm|1}}`−୨  inches (−୬୩.୫ mm)

Note that the following cases are not interpreted as mixed numbers:

• `{{convert|2-1⁄2|in|mm|1}}` → ୨– inch (୫୦.୮–୧୨.୭ mm). This is interpreted as a range from 2 inches to 1⁄2 inch.
• `{{convert|-2+1⁄2|in|mm|1}}`[convert: %s]%s N This is neither a mixed number nor a range, and mathematical expressions requiring calculations are not allowed here.

### Horizontal fraction bar: 1/2 inch

Using a double slash (`//`) provides a horizontal fraction bar for the original (input) unit:

• `{{convert|1//2|in|mm|1}}`/ inch (୧୨.୭ mm)
• `{{convert|6+3//8|in|mm|1}}` / inches (୧୬୧.୯ mm)

Using a negative value for `|frac=` provides a horizontal fraction bar for the converted (output) unit:

• `{{convert|12.7|mm|frac=-2}}` → ୧୨.୭ millimetres (/ in)
• `{{convert|161.9|mm|frac=-8}}` → ୧୬୧.୯ millimetres ( / in)

### Thousands separator: 1,000 mi or 1000 mi

In input, a comma for thousands separator is accepted but not required; a gap (space) is not accepted. In output, by default, the thousand separator is the comma:

• `{{convert|1234567|m|ft}}` → ୧,୨୩୪,୫୬୭ metres (୪,୦୫୦,୪୧୭ ft)
• `{{convert|1,234,567|m|ft}}` → ୧,୨୩୪,୫୬୭ metres (୪,୦୫୦,୪୧୭ ft)

Set `|comma=off` to remove the separator from the output:

• `{{convert|1234567|m|ft|comma=off}}` → ୧୨୩୪୫୬୭ metres (୪୦୫୦୪୧୭ ft)

Use `|comma=gaps` to use digit grouping by gap (thin space) as a thousands separator:

• `{{convert|1234567|m|ft|comma=gaps}}`୨୩୪୫୬୭ metres (୦୫୦୪୧୭ ft)

Default behaviour, for comparison:

• `{{convert|1234567|m|ft}}` → ୧,୨୩୪,୫୬୭ metres (୪,୦୫୦,୪୧୭ ft)

Setting `|comma=5` will only add the separator when the number of digits is 5 or more:

• `{{convert|1234|m|ft|comma=5}}` → ୧୨୩୪ metres (୪୦୪୯ ft)
• `{{convert|1234567|m|ft|comma=5}}` → ୧,୨୩୪,୫୬୭ metres (୪,୦୫୦,୪୧୭ ft)

Default behaviour, for comparison:

• `{{convert|1234|m|ft}}` → ୧,୨୩୪ metres (୪,୦୪୯ ft)

## Output manipulation

### Brackets and separators: 10 m [33 ft]

Punctuation that distinguishes the two measurements is set by `|disp=`.
Options are: `b` (the default), `sqbr`, `comma`, `or`, `br`, `x|…`:

• `{{convert|10|m|ft|disp=sqbr}}` → ୧୦ metres [୩୩ ft]
• `{{convert|10|m|ft|disp=comma}}` → ୧୦ metres, ୩୩ ft
• `{{convert|10|m|ft|disp=or}}` → ୧୦ metres or ୩୩ feet

Default behaviour, for comparison:

• `{{convert|10|m|ft}}` → ୧୦ metres (୩୩ ft)

Setting `|disp=br` will force a new line (`<br/>`)

• `{{convert|10|m|ft|disp=br}}` → ୧୦ metres
୩୩ feet

Also `|disp=br()` will force a new line, and keep the brackets (useful in tables):

• `{{convert|10|m|ft|disp=br()}}` → ୧୦ metres
(୩୩ feet)

Setting `|disp=x|…` allows any text as separator:

• `{{convert|10|m|ft|disp=x|_MyText_}}` → ୧୦ metres_MyText_୩୩ ft (To display spaces, use `&nbsp;`)

### Flipping (reordering) the two measurements: ୧,୬୦୯.୩ metres (୧ ମାଇଲ)

Setting `|order=flip` will flip (swap) the two measurements:

• `{{convert|1|mi|m|order=flip}}` → ୧,୬୦୯.୩ metres (୧ ମାଇଲ)

Default behaviour, for comparison:

• `{{convert|1|mi|m}}` → ୧ ମାଇଲ (୧,୬୦୯.୩ metres)

When converting to multiple units, the effect is:

• `{{convert|10|km|mi nmi|order=flip}}` → ୬.୨୧୩୭ ମାଇଲ; ୫.୩୯୯୬ nautical ମାଇଲ (୧୦ କିଲୋମିଟର)
• `{{convert|10|km|nmi mi|order=flip}}` → ୫.୩୯୯୬ nautical ମାଇଲ; ୬.୨୧୩୭ ମାଇଲ (୧୦ କିଲୋମିଟର)

### Fixed ordering of output units: ୧୦୦ °C (୨୧୨ °F; ୧୦୦ °C; ୩୭୩ K)

Setting `|order=out` shows the output-units as ordered; the input unit is skipped:

• `{{convert|100|C|F C K|abbr=on|order=out}}` → ୧୦୦ °C (୨୧୨ °F; ୧୦୦ °C; ୩୭୩ K)
• `{{convert|200|PS|kW hp|0|abbr=on|order=out}}` → ୨୦୦ PS (୧୪୭ kW; ୧୯୭ hp)

### Displaying parts of the result: ୨ (୧.୫)

It is possible to display only parts of the conversion result:

Convert Output Returns
`{{convert|2|cuyd|m3}}` ୨ cubic yards (୧.୫ m) Regular output (for comparison)
`{{convert|2|cuyd|m3|abbr=values}}` ୨ (୧.୫) Input and output numbers
`{{convert|2|cuyd|m3|disp=unit}}` cubic yards Input unit
`{{convert|2|cuyd|m3|disp=unit|adj=on}}` cubic-yard Input unit, adjective (hyphenated)
`{{convert|2|cuyd|cuyd|disp=out}}` ୨.୦ cu yd Input (workaround. Note repetition of unit in input)
`{{convert|2|cuyd|m3|abbr=~}}` ୨ cubic yards [cu yd] (୧.୫ m) Input: both name and symbol
`{{convert|2|cuyd|m3|disp=unit2}}` m Output unit (symbol)
`{{convert|2|cuyd|m3|disp=unit2|abbr=off}}` cubic metres Output unit (name)
`{{convert|2|cuyd|m3|disp=number}}` ୧.୫ Output value
`{{convert|2|cuyd|m3|disp=out}}` ୧.୫ m Output value and unit name
`{{convert|2|cuyd|m3|disp=out|abbr=off}}` ୧.୫ cubic metres Output value and unit symbol

### Display both input name and symbol: 2 kilopascals [kPa]

Setting `|abbr=~` returns both name and symbol of the first (input) unit:

• `{{convert|2|kPa|psi|abbr=~}}` → ୨ kilopascals [kPa] (୦.୨୯ psi)
• `A {{convert|2|kPa|psi|abbr=~|adj=on}} pressure`A ୨-kilopascal [kPa] (୦.୨୯ psi) pressure

## Table options

For the wikitable structure, there are three options: add a line-break, split the result over columns and make the table sortable.

### Enforced line break

`|disp=br` adds a line-break and omits brackets.

`|disp=br()` adds a line-break and does add brackets to the converted value. This may be useful in tables:

`|disp=br` `|disp=br()`
୧୦୦ କିଲୋମିଟର
୬୨ ମାଇଲ
୧୦୦ କିଲୋମିଟର
(୬୨ ମାଇଲ)

### Table columns

Using {convert} in a table cell, with `|disp=table` splits the result over two (or more) columns. By default units are not included in the table, however, they can be added using the `|abbr=` parameter. Multiple-unit outputs, like `ftin`, always output their units to the table.

`{{convert|10|m|ft|disp=table}}`

```style="text-align:right;"|୧୦ |style="text-align:right;"|୩୩```

`|disp=tablecen` does the same, and also centers the text:

`{{convert|20|m|ft|disp=tablecen}}`

```style="text-align:center;"|୨୦ |style="text-align:center;"|୬୬```

kilograms pounds stone and pounds
`|disp=table` ୧୦ ୨୨ ୧ st ୮ lb
`|disp=table` and `|abbr=on` ୨୦ kg ୪୪ lb ୩ st ୨ lb
`|disp=table` and `|abbr=off` ୩୦ kilograms ୬୬ pounds ୪ stone ୧୦ pounds
`|disp=tablecen` ୪୦ ୮୮ ୬ st ୪ lb
`|disp=<other>` (default) ୫୦ kilograms (୧୧୦ lb; ୭ st ୧୨ lb)

### Sorting

Use `|sortable=on` to include a hidden numerical sortkey in the output, suitable for use in a table with sortable columns. Technically, this places a hidden string before the actual displayed values:

`{{convert|10|m|ft|sortable=on}}` `<span data-sort-value="7001100000000000000♠"></span>10 metres (33 ft)`
showing: ୧୦ metres (୩୩ ft).

Use both `|disp=table` and `|sortable=on` together to produce table columns (pipe symbols) for each value in sortable columns:

m m ft
A ୧୫.୭୫ମି ୧୫  ୫୨
B ୧୫.୫ମି ୧୫.୫ ୫୧
C ୧୬ମି ୧୬.୦ ୫୨.୫
D ୧୬ମି ୧୬ ୫୨

The generated sortkey is calculated in a consistent way based on both the value and its unit as passed to the convert template. In most cases convert uses the passed value converted to SI base units. It is therefore not necessarily the displayed value or other alternate units and is calculated regardless of output format options. Using different units or different order of units in individual rows should therefore not lead to incorrect sorting, although variations in rounding can give surprising results, since an unrounded number is used for the sortkey.

## Units

The conversion factors and physical constants are sourced here.

### All units

The table below lists units supported by this template. It is divided up according to the quantity being measured. Not all supported units are listed here; there are links to complete lists for each quantity.

The codes listed in the code column (column 3) are accepted as input by the template. These can be used as the second or third unnamed parameter. For some units there exist alternative codes. These are listed in brackets and have been incorporated to make the code more flexible for editors, e.g. °F or F may be entered.

The codes listed in the combinations column (column 7) can be used to produce multiple conversions. They can only be used as the third unnamed parameter, e.g. `{{convert|55|nmi|km mi}}` produces "୫୫ nautical ମାଇଲ (୧୦୨ କି.ମି.; ୬୩ mi)".

Abridged list of units supported by {{Convert}}
AREA
(Full list)
system unit unit-
code
abbrev-
iation
notes conversion factor/m2 combinations
SI ବର୍ଗ କି.ମି. km2 କିମି ୧୦,୦୦,୦୦୦
• km2 sqmi
ବର୍ଗ. ମି.re m2 ମି US spelling: square meter
• m2 sqft
square centimetre cm2 cm2 US spelling: square centimeter
୦.୦୦୦୧
• cm2 sqin
square millimetre mm2 mm² US spelling: square millimeter
୦.୦୦୦୦୦୧
• mm2 sqin
non-SI metric ହେକ୍ଟର ha ହେକ୍ଟର ୧୦,୦୦୦
Imperial
&
US customary
ବର୍ଗ ମାଇଲ sqmi ବର୍ଗ ମି. ୨୫,୮୯,୯୮୮.୧୧୦୩୩୬
• sqmi km2
ଏକର acre ୪,୦୪୬.୮୫୬୪୨୨
square yard sqyd sq yd ୦.୮୩୬୧୨୭୩୬
square foot sqft
(sqfoot)
sq ft Code "sqfoot" will show "square foot" if plural. ୦.୦୯୨୯୦୩୦୪
• sqft m2 (sqfoot m2)
square inch sqin sq in ୦.୦୦୦୬୪୫୧୬
• sqin cm2
Other square nautical mile sqnmi sq nmi ୩୪,୨୯,୯୦୪
dunam dunam For alternative spellings and definitions see the full list ୧,୦୦୦
tsubo tsubo (୪୦୦/୧୨୧)

### 'per' units: kg/hl, miles per gallon

When using a slash (`/`), a unit like `kg/hl` is recognized as kilograms per hectolitre and will be converted with other mass/volume units.

• `{{convert|1000|kg/hl}}` → ୧,୦୦୦ kilograms per hectolitre (୧୦୦ lb/imp gal)

Population density (inhabitants per square mile) can be converted using

• `{{convert|10|PD/sqmi|PD/km2}}` → ୧୦ inhabitants per square ମାଇଲ (୩.୯/କି.ମି.)

Vehicular fuel efficiency, commonly expressed in miles per gallon or litres per 100 km can also be converted

• `{{convert|26|mpgUS|l/100km mpgimp}}` → ୨୬ ମାଇଲ per US gallon (୯.୦ l/୧୦୦ କି.ମି.; ୩୧ mpg-imp)

### Units of difference: Expressing a change or difference in temperature

We have already discussed standard temperature conversions (°C, °F, K), as shown in these two examples:

• `{{convert|10|C}}` → ୧୦ °C (୫୦ °F) (standard temperature conversion)
• `{{convert|10–15|C}}` → ୧୦–୧୫ °C (୫୦–୫୯ °F) (standard temperature range conversion)

When expressing a temperature change (e.g., "The temperature increased by 10 °C"), or when comparing temperatures (e.g., "10 to 15 °C warmer"), we cannot use the standard temperature units (`|C`, `|F` and `|K`), which refer to points on the respective scale. Instead, we must use one of the following "units of difference": `|C-change`, `|F-change` and `|K-change`.

Compare the following two examples with the two above:

• `{{convert|10|C-change}}` → ୧୦ °C (୧୮ °F) increase in temperature
• `{{convert|10–15|C-change}}` → ୧୦–୧୫ °C (୧୮–୨୭ °F) warmer than normal

To produce multiple units in the output:

• `{{convert|10|C-change|F-change K-change}}` → ୧୦ °C (୧୮ °F; ୧୦ K) difference

### Multiple units: 1 ft 5 in

#### In input

Base document § Input multiples lists options for multiple unit input (like `ft,in`). It can catch predefined sets only (units that can be subdivided; e.g., yd into ft):

• `{{convert|1|yd|2|ft|3|in}}` → ୧ yard ୨ feet ୩ inches (୧.୬୦ m)
• `{{convert|2|ft|3|in|cm}}` → ୨ feet ୩ inches (୬୯ cm)
• `{{convert|1|lb|5|oz|g}}` → ୧ pound ୫ ounces (୬୦୦ g)

#### In output

Available multiple-unit output options predefined, like `ftin` and `ydftin`. The full list is at § Output multiples.

• `{{convert|2|m|ftin}}` → ୨ metres (୬ ft ୭ in)
• `{{convert|2|m|ft in}}` → ୨ metres (୬.୬ ft; ୭୯ in), using a space, returns the decimal point

Default behaviour, for comparison:

• `{{convert|2|m}}` → ୨ metres (୬ ft ୭ in)

• {{hands}} a length used to measure horses
• {{Long ton}} a weight in ton, cwt, qr and lb

### Currency per unit: \$/mi → \$/km

Using currency symbols in a \$ per unit value, you can convert the per-unit:

• `{{convert|10|\$/mi|\$/km}}` → \$୧୦ per ମାଇଲ (\$୬.୨/କି.ମି.)
• `{{convert|1500|\$/ozt|\$/g}}` → \$୧,୫୦୦ per troy ounce (\$୪୮/g)

You can set the currency in both values using `|\$=€`:

• `{{convert|10|\$/mi|\$/km|\$=€}}` → €୧୦ per ମାଇଲ (€୬.୨/କି.ମି.)

It is not possible to convert the currency. So, this result (mixed currencies) is not possible: \$15 per mile (€8.6/km) N

## Using convert inside templates

For usage in template code, like infoboxes, {{Convert}} has these options:

Pre-formatting fraction input
Your template can accept `|input=16 7/8` and use {{#invoke:Convert/helper|number|16 7/8}} → Script error: No such module "Convert/helper".
Using a Wikidata property
• Adding the Wikidata property code, like code `|input=P2073`, to your template code automatically returns the Wikidata property for that article, and convert it. Both number and unit are read.

Note: to return that property value for an other article, use `|qid=`.

Example for vehicle range (P2073): Note: this example uses `|qid=Q1056131` (testing for Cessna 208 (Q1056131))

• `{{convert|input=P2073|qid=Q1056131|ftin|abbr=on}}`[convert: %s]%s
• `{{convert|input=P2073|qid=Q1056131|km|abbr=on}}`[convert: %s]%s
• `{{convert|input=P2073|qid=Q1056131|km|abbr=on|disp=out}}`[convert: %s]%s
For example see template:Infobox Telescope.

Sometimes a property may have more than one value against it in Wikidata. You can use the `|qual=` parameter to specify which of the values you want to use.

Example for diameter (P2386): Note: this example uses `|qid=Q1513315` (testing for South Pole Telescope (Q1513315))

## TemplateData

This is the TemplateData documentation for this template used by VisualEditor and other tools; see the monthly parameter usage report for this template.

TemplateData for Convert

Converts measurements to other units.

Template parameters

This template prefers inline formatting of parameters.

ParameterDescriptionTypeStatus
Value`1`

The value to convert.

Numberrequired
From unit`2`

The unit for the provided value.

Example
km
Stringrequired
To units`3`

The units to convert into. Separate units by a space for multiple outputs. In an output unit, use + for a multiplication space.

Example
mi nmi
Stringsuggested
Precision or suffix`4`

Significant digits after decimal dot or, if negative, exponent of ten.

Numberoptional
Link units`lk`

Indication of what units to apply wikilinks to. Use “on” for all, “in” for the input unit, “out” for the output units, or “off” for none of the units.

Default
off
Example
on
Stringoptional
Abbreviation`abbr`

Display for the units: “on” to display all units using their unit symbols, “off” to display all units in full words, “in” to display the unit symbol for the input unit, “out” to display the unit symbols for the output units, “unit” to display unit symbols for both input and output units when using scientific notation, “values” for no units at all (neither unit symbols nor full words of units).

Default
out
Example
on, unit, in, out, off
Stringsuggested
Spelling`sp`

Spelling of units. Use “us” to display unit names using U.S. spelling.

Example
us
Stringoptional
Adjective`adj`

Whether to use adjectival form. Use “on” for singular unit name appended by a hyphen, “mid” to put conversion at end, or “off” (default) for no adjectival form.

Default
off
Example
on
Unbalanced wikitextoptional
Conversion`disp`

Display conversion result: “or”: after ‘or’, “x”: with custom prefix and suffix, “b”: in parentheses, “table”/“tablecen”, “output only”: alone, “output number only”: alone and without unit, “unit”: not at all but input unit; if the value is a number it is used as precision.

Example
b
Stringoptional
Ordering`order`

“flip” returns converted value first, input value second.

Example
flip
Stringoptional
Significant figures`sigfig`

Indicates the number of significant figures to be used in rounding.

Numberoptional
Rounding output`round`

The type of rounding. “5” rounds the output number to nearest multiple of 5, “25” to nearest multiple of 25, “each” rounds each number in a range.

Numberoptional
Thousands separator`comma`

Sets or suppresses the use of thousands separators in the numbers. “off”: no separator; “gaps”: use space instead of comma as thousands separator; “5”: only add thousands separator when the integral part of the number uses 5 positions or more (10,000 or more; if using comma as thousands separator, 1234 would produce '1234', 12345 would produce '12,345').

Default
on
Example
off
Stringoptional
Sort key`sortable`

“on” generates a hidden sort key

Example
on
Stringoptional
Spell numbers?`spell`

If used, spells input or input and output numbers in words, optionally capitalizing the first

Example
'in', 'In', 'on', or 'On'
Stringoptional
Singular?`sing`

If 'yes', uses singular form of units (deprecated)

Example
yes
Stringdeprecated
Fraction?`frac`

fraction as rounding unit

Numberoptional
Currency symbol`\$`

sets currency symbol in both units

Example
\$=€ will show " €10 per mile (€6.2/km)"
Stringoptional
WD property`input`

Reads the property value of the item (article), then converts it

Example
{{convert|input=P2046}} (P2046=area)
Stringoptional