Template:Convert/doc

For currency conversion into US dollars, see Template:To USD

Template {{convert}} calculates from one measurement unit to another one, and then presents the results formatted. For example:

{{convert|2|km|mi}} → 2 kilometres (1.2 mi) (km entered, so converted into mile)

{{convert|7|mi|km}} → 7 miles (11 km) (mi entered, so converted into km)

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

{{convert|2|km|mi|2|abbr=on}} → 2 km (1.24 mi)

{{convert|7|mi|km|2|abbr=on}} → 7 mi (11.27 km)

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

{{convert|2|to|5|km|mi}} → 2 to 5 kilometres (1.2 to 3.1 mi)

{{convert|2|-|5|km|mi}} → 2–5 kilometres (1.2–3.1 mi)

Combined effect example:

{{convert|2|-|5|km|mi|2|abbr=on}} → 2–5 km (1.24–3.11 mi)

{{convert|2|and|5|km|mi|sigfig=3|abbr=off}} → 2 and 5 kilometres (1.24 and 3.11 miles)

See Help:Convert for more detailed, technical information

Units to convert

See also: Complete list of units for {{Convert}}

Enter units to convert from into:

• {{convert|1|lb|kg}} → 1 pound (0.45 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}} → 1 pound (0.45 kg)

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

• {{convert|1|lb|kg|abbr=in}} → 1 lb (0.45 kilograms)

To abbreviate both or neither:

• {{convert|1|lb|kg|abbr=on}} → 1 lb (0.45 kg)
• {{convert|1|lb|kg|abbr=off}} → 1 pound (0.45 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}} → 1 lb (0.45 kg)

is equivalent to:

{{convert|1|lb|kg|abbr=on}} → 1 lb (0.45 kg)

Adjective: a 10-mile distance

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

• A {{convert|10|mi|km|adj=on}} distance → A 10-mile (16 km) distance.

Default behaviour, for comparison:

• {{convert|10|mi|km}} to go → 10 miles (16 km) to go.

Even with |abbr=on, as per Manual of Style, no hyphen is produced with unit symbols.

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

See Help:Convert § Rounding for a more mathematical description of the rounding options

By definition, 100 ft equals 30.48 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}}	123 feet (40 m)
{{convert|123|ft|m}}	123 feet (37 m)	same output as with 0 (below)
{{convert|123|ft|m|0}}	123 feet (37 m)
{{convert|123|ft|m|1}}	123 feet (37.5 m)
{{convert|123|ft|m|2}}	123 feet (37.49 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}}	500 feet (150 m)
{{convert|500|ft|m}}	500 feet (150 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}}	500 feet (152 m)
{{convert|500|ft|m|1}}	500 feet (152.4 m)
{{convert|500|ft|m|2}}	500 feet (152.40 m)	exact value is 152.4 m
{{convert|500|ft|cm|-3}}	500 feet (15,000 cm)
{{convert|500|ft|cm}}	500 feet (15,000 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}}	500 feet (15,240 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 ​¹⁄₁₀ 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}} → 1,200 feet (365.8 m)
• {{convert|1200|ft|m|sigfig=3}} → 1,200 feet (366 m)
• {{convert|1200|ft|m|sigfig=2}} → 1,200 feet (370 m)
• {{convert|1200|ft|m|sigfig=1}} → 1,200 feet (400 m)

Default behaviour, for comparison:

• {{convert|1200|ft|m}} → 1,200 feet (370 m)

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

• {{convert|1200|ft|m|sigfig=0}} → 1,200 feet (370 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}} → 10 metres (33 ft)
• {{convert|10|m|ft|round=5}} → 10 metres (35 ft)

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

• {{convert|10|m|ft}} → 10 metres (33 ft)
• {{convert|10|m|ft|round=25}} → 10 metres (25 ft)

Default behaviour, for comparison:

• {{convert|10|m|ft|sigfig=4}} → 10 metres (32.81 ft)

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

• {{convert|10 x 200 x 3000|m|ft}} → 10 by 200 by 3,000 metres (33 ft × 656 ft × 9,843 ft)
• {{convert|10 x 200 x 3000|m|ft|round=each}} → 10 by 200 by 3,000 metres (33 ft × 660 ft × 9,800 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 ​¹⁄₃).

• {{convert|5.56|cm|in|frac=16}} → 5.56 centimetres (2+3⁄16 in)
• {{convert|8|cm|in|frac=4}} → 8 centimetres (3+1⁄4 in)

The fraction is reduced when possible:

• {{convert|8|cm|in|frac=100}} → 8 centimetres (3+3⁄20 in)

Default behaviour uses decimal notation:

• {{convert|5.56|cm|in}} → 5.56 centimetres (2.19 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}} → 10,000 °C (18,000 °F; 10,300 K)
2. {{convert|10,000.1|C|F K}} → 10,000.1 °C (18,032.2 °F; 10,273.2 K)
3. {{convert|-272|C|F K}} → −272 °C (−457.60 °F; 1.15 K)
4. {{convert|-272|C}} → −272 °C (−457.60 °F)
5. {{convert|100|C|F K}} → 100 °C (212 °F; 373 K)
6. {{convert|0|C|F K}} → 0 °C (32 °F; 273 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 0.1 degrees Celsius change is a 0.18 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}} → 10,000 °C (18,032 °F)

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

{{convert|10000|C|0}} → 10,000 °C (18,032 °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-1N 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}} → 4 miles (6.66524 km) N (precisions are mismatched)
• {{convert|4.14159|mi|km|0|adj=ri0}} → 4 miles (7 km) Y

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}} → 4 miles (6 km) N (double rounding)

Into multiple units: 10 °C (50 °F; 283 K)

Separate the multiple output units by a space:

• {{convert|10|C|F K}} → 10 °C (50 °F; 283 K)
• {{convert|5|km|mi nmi}} → 5 kilometres (3.1 mi; 2.7 nmi)

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

See also:

• For multiple-unit options like 1 ft 5 in, see § In input and § In output.

Ranges of values

For a conversion of a difference, see § Units of difference.

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}}	3–6 feet (0.91–1.83 m)	Input can be hyphen (-) or en dash (–), output uses en dash
– – (en dash)	{{convert|3|–|6|ft}}	3–6 feet (0.91–1.83 m)
and	{{convert|3|and|6|ft}}	3 and 6 feet (0.91 and 1.83 m)
and(-)	{{convert|3|and(-)|6|ft}}	3 and 6 feet (0.91–1.83 m)	|abbr=on abbreviates the first unit
and(-)|abbr=on	{{convert|3|and(-)|6|ft|abbr=on}}	3 and 6 ft (0.91–1.83 m)
or	{{convert|3|or|6|ft}}	3 or 6 feet (0.91 or 1.83 m)
to	{{convert|3|to|6|ft}}	3 to 6 feet (0.91 to 1.83 m)
to(-)	{{convert|3|to(-)|6|ft}}	3 to 6 feet (0.91–1.83 m)	|abbr=on abbreviates the first unit
to(-)|abbr=on	{{convert|3|to(-)|6|ft|abbr=on}}	3 to 6 ft (0.91–1.83 m)
to about	{{convert|3|to about|6|ft}}	3 to about 6 feet (0.91 to about 1.83 m)
+/-	{{convert|3|+/-|6|ft}}	3 ± 6 feet (0.91 ± 1.83 m)
± ±	{{convert|3|±|6|ft}}	3 ± 6 feet (0.91 ± 1.83 m)
+	{{convert|3|+|6|ft}}	3 + 6 feet (0.91 + 1.83 m)
,	{{convert|3|,|6|ft}}	3, 6 feet (0.91, 1.83 m)
, and	{{convert|3|, and|6|ft}}	3, and 6 feet (0.91, and 1.83 m)
, or	{{convert|3|, or|6|ft}}	3, or 6 feet (0.91, or 1.83 m)
by	{{convert|3|by|6|ft}}	3 by 6 feet (0.91 by 1.83 m)
x	{{convert|3|x|6|ft}}	3 by 6 feet (0.91 m × 1.83 m)	|abbr=on abbreviates and repeats the first unit
× ×	{{convert|3|×|6|ft}}	3 by 6 feet (0.91 m × 1.83 m)
x|abbr=on	{{convert|3|x|6|ft|abbr=on}}	3 ft × 6 ft (0.91 m × 1.83 m)
xx	|xx| is deprecated. Use |x| instead
*	|*| is deprecated. Use |x| instead

Multiple dimensions: 6 m × 12 m (20 ft × 39 ft)

Use by:

• {{convert|6|by|12|ft|m}} → 6 by 12 feet (1.8 by 3.7 m)

Use ×, multiplication sign, or x, letter:

• {{convert|6|x|12|m|ft}} → 6 by 12 metres (20 ft × 39 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}} → 6 m × 12 m (20 ft × 39 ft)

Lists of values: 20, 40, or 60 miles

{{convert|20|,|40|, or|60|mi}} → 20, 40, or 60 miles (32, 64, or 97 km)

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}} → 1 foot 3 inches () N

Default behaviour, for comparison:

• {{convert|1|ft|3|in|mm}} → 1 foot 3 inches (380 mm)

Words

Spelling of unit name: UK metre or US meter?

Default spelling of units is en-UK. To show en-US spelling, use |sp=us:

{{convert|1|m|ft}} → 1 metre (3.3 ft)—default

{{convert|1|m|ft|sp=us}} → 1 meter (3.3 ft)

Spell out numbers: ten miles

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

• {{convert|10|mi|m|spell=in}} → ten miles (16,000 m)

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

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

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

• {{convert|10|mi|m|spell=In}} → Ten miles (16,000 m)
• {{convert|10|mi|m|spell=On}} → Ten miles (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 miles (sixteen thousand meters)

Inserted before units: 4 planted acres

• {{convert|4|acre||adj=pre|planted}} → 4 planted acres (1.6 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 }} → 4 planted acres (1.6 planted ha)
• {{convert|4|acre||disp=preunit|planted |reforested-}} → 4 planted acres (1.6 reforested-ha)

After adjective unit: A 10-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}} → 10-foot-long (3.0 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}} → 1 metre (3 ft 3 in)
• {{convert|2|metre}} → 2 metres (6 ft 7 in)
• {{convert|2|metre|abbr=on}} → 2 m (6 ft 7 in)

Exception

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

• {{convert|100|foot|abbr=off}} → 100 foot (30 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 (99 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 (71 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}} → 100 million miles (160×10^⁶ km)
• {{convert|120|e6acre}} → 120 million acres (490,000 km²)
• {{convert|120|e6acre|e3km2}} → 120 million acres (490×10^³ km²)

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

• {{convert|100|e6mi|e6km|abbr=on}} → 100×10^⁶ mi (160×10^⁶ km)

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

• {{convert|100|e6mi|e6km|abbr=unit}} → 100 million mi (160 million km)
• {{convert|100|e6mi|e6km|abbr=off}} → 100 million miles (160 million kilometres)

Numbers

Using an SI prefix: gigameter (Gm), or micrometer (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: gigameter. These are plain multiplication factors.

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

• 12 Gm (1.2×10¹⁰ m)
• 12 μm (1.2×10⁻⁵ m)

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

• {{convert|12|Gm|mi|abbr=on}} → 12 Gm (7,500,000 mi)
• Mm: 12 Mm (7,500 mi)
• km: 12 km (39,000 ft)
• mm: 12 mm (0.47 in)
• μm: 12 μm (0.012 mm)
• um: 12 μm (0.012 mm) (letter "u" can be used for "μ" here)

The prefix can be used in the output unit:

• {{convert|12000|mi|Mm|abbr=on}} → 12,000 mi (19 Mm)
• {{convert|12|in|μm|abbr=on}} → 12 in (300,000 μm)

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

• {{convert|12|μm|μin|abbr=on}} → 12 μm (470 μin)

Further information: Help:Convert units § SI prefixes

Engineering notation: 7 × 10⁶ m

In the unit: e6m

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

• {{convert|70|e6m}} → 70×10^⁶ m (230,000,000 ft)

The same is possible for the output unit:

• {{convert|23,000,000|ft|e6m}} → 23,000,000 feet (7.0×10^⁶ 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 1.23×10⁻¹⁴. 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}} → 12.3×10⁻¹⁵ atm (1.23×10⁻¹⁴ atm)
• {{convert|0.00000005|atm|atm|abbr=on}} → 0.00000005 atm (5.0×10⁻⁸ atm)

Input with fractions: 1+1⁄2 inches (38.1 mm)

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

• {{convert|1/2|in|mm|1}} → 1⁄2 inch (12.7 mm)
• {{convert|1⁄2|in|mm|1}} → 1⁄2 inch (12.7 mm)

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

• {{convert|2+1⁄2|in|mm|1}} → 2+1⁄2 inches (63.5 mm)

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

• {{convert|-2-1⁄2|in|mm|1}} → −2+1⁄2 inches (−63.5 mm)

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

• {{convert|2-1⁄2|in|mm|1}} → 2–1⁄2 inch (50.8–12.7 mm). This is interpreted as a range from 2 inches to 1⁄2 inch.
• {{convert|-2+1⁄2|in|mm|1}} → N This is neither a mixed number nor a range, and mathematical expressions requiring calculations are not allowed here.

Output with horizontal fraction bar in: 1/2 inch

Using a double slash (//) returns a horizontal bar fraction:

• {{convert|1//2|in|mm|1}} → 1/2 inch (12.7 mm)
• {{convert|2+1//2|in|mm|1}} → 2+1/2 inches (63.5 mm)

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}} → 1,234,567 metres (4,050,417 ft)
• {{convert|1,234,567|m|ft}} → 1,234,567 metres (4,050,417 ft)
• {{convert|1 234 567|m|ft}} → N

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

• {{convert|1234567|m|ft|comma=off}} → 1234567 metres (4050417 ft)

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

• {{convert|1234567|m|ft|comma=gaps}} → 1234567 metres (4050417 ft)

Default behaviour, for comparison:

• {{convert|1234567|m|ft}} → 1,234,567 metres (4,050,417 ft)

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

• {{convert|1234|m|ft|comma=5}} → 1234 metres (4049 ft)
• {{convert|1234567|m|ft|comma=5}} → 1,234,567 metres (4,050,417 ft)

Default behaviour, for comparison:

• {{convert|1234|m|ft}} → 1,234 metres (4,049 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}} → 10 metres [33 ft]
• {{convert|10|m|ft|disp=comma}} → 10 metres, 33 ft
• {{convert|10|m|ft|disp=or}} → 10 metres or 33 feet

Default behaviour, for comparison:

• {{convert|10|m|ft}} → 10 metres (33 ft)

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

• {{convert|10|m|ft|disp=br}} → 10 metres
  33 feet

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

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

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

• {{convert|10|m|ft|disp=x|_MyText_}} → 10 metres_MyText_33 ft (To display spaces, use  )

Flipping (reordering) the two measurements: 1,609.3 metres (1 mile)

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

• {{convert|1|mi|m|order=flip}} → 1,609.3 metres (1 mile)

Default behaviour, for comparison:

• {{convert|1|mi|m}} → 1 mile (1,609.3 metres)

When converting to multiple units, the effect is:

• {{convert|10|km|mi nmi|order=flip}} → 6.2137 miles; 5.3996 nautical miles (10 kilometres)
• {{convert|10|km|nmi mi|order=flip}} → 5.3996 nautical miles; 6.2137 miles (10 kilometres)

Fixed ordering of output units: 212 °F (100 °C; 373 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}} → 212 °F (100 °C; 373 K)
• {{convert|200|PS|kW hp|0|abbr=on|order=out}} → 147 kW (197 hp)

See also: § Displaying parts of the output

Displaying parts of the result: 2 (1.5)

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

Convert	Output	Returns
{{convert|2|cuyd|m3}}	2 cubic yards (1.5 m3)	Regular output (for comparison)
{{convert|2|cuyd|m3|abbr=values}}	2 (1.5)	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}}	2.0 cu yd	Input (workaround. Note repetition of unit in input)
{{convert|2|cuyd|m3|abbr=~}}	2 cubic yards [cu yd] (1.5 m3)	Input: both name and symbol
{{convert|2|cuyd|m3|disp=unit2}}	m3	Output unit (symbol)
{{convert|2|cuyd|m3|disp=unit2|abbr=off}}	cubic metres	Output unit (name)
{{convert|2|cuyd|m3|disp=number}}	1.5	Output value
{{convert|2|cuyd|m3|disp=out}}	1.5 m3	Output value and unit name
{{convert|2|cuyd|m3|disp=out|abbr=off}}	1.5 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=~}} → 2 kilopascals [kPa] (0.29 psi)
• A {{convert|2|kPa|psi|abbr=~|adj=on}} pressure → A 2-kilopascal [kPa] (0.29 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()
100 kilometres 62 miles	100 kilometres (62 miles)

Table columns showing numbers only

Using {convert} in a table cell, with |disp=table splits the result over two columns:

{{convert|10|m|ft|disp=table}} →

style="text-align:right;"|10

|style="text-align:right;"|33

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

{{convert|20|m|ft|disp=tablecen}} →

style="text-align:center;"|20

|style="text-align:center;"|66

The units are added as a column header:

	m	ft
|disp=table	10	33
|disp=tablecen	20	66
|disp=<other> (default)	30 metres (98 ft)

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: 10 metres (33 ft).

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

	m	ft
A	15+3⁄4	52
B	15.5	51
C	16.0	52.5
D	16	52

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

Units are case-sensitive: use kW, not KW or kw

Abridged list of units supported by {{Convert}}
Explanation
system	unit	unit- code	symbol or abbrev.	notes	sample default conversion	combination output units
the system(s) to which the unit belongs	units listed by name	unit-code to use in template	symbols shown in output	other notes about the units	sample of the default conversion for the unit	output codes for multiple conversions
LENGTH (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
SI	megametre	Mm	Mm	US spelling: megameter	1.0 Mm (620 mi)
	kilometre	km	km	US spelling: kilometer	1.0 km (0.62 mi)	km mi
	metre	m	m	US spelling: meter	1.0 m (3 ft 3 in)	m ft m ftin
	centimetre	cm	cm	US spelling: centimeter	1.0 cm (0.39 in)	cm in
	millimetre	mm	mm	US spelling: millimeter	1.0 mm (0.039 in)	mm in
	micrometre	μm (um)	μm	US spelling: micrometer	1.0 μm (3.9×10−5 in)
	nanometre	nm	nm	US spelling: nanometer	1.0 nm (3.9×10−8 in)
non-SI metric	ångström	Å (angstrom)	Å		1.0 Å (3.9×10−9 in)
Imperial & US customary	mile	mi	mi		1.0 mi (1.6 km)	mi km
	furlong	furlong	(none)		1.0 furlong (660 ft; 200 m)
	chain	chain	(none)		1.0 chain (66 ft; 20 m)
	rod	rd	rd	For other names of this unit see the full list.	1.0 rd (17 ft; 5.0 m)
	fathom	fathom	(none)	assumes 1 fathom ≡ 6 ft	1.0 fathom (6.0 ft; 1.8 m)
	yard	yd	yd	assumes the international definition	1.0 yd (0.91 m)
	foot	ft (foot)	ft	code "foot" will show "foot" if plural. code "ft" will show "foot" or "feet" depending on value.	1.0 ft (0.30 m)	ftin (feet and inches) ft m (foot m)
	inch	in	in		1.0 in (25 mm)	in cm in mm
Other	nautical mile	nmi	nmi	the international standard nautical mile For other nautical miles see the full list.	1.0 nmi (1.9 km; 1.2 mi)
	parsec	pc	pc		1.0 pc (3.3 ly)
	light-year	ly	ly		1.0 ly (63,000 AU)
	astronomical unit	AU	AU		1.0 AU (150,000,000 km; 93,000,000 mi)
AREA (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
SI	square kilometre	km2	km2	US spelling: square kilometer	1.0 km2 (0.39 sq mi)	km2 sqmi
	square metre	m2	m2	US spelling: square meter	1.0 m2 (11 sq ft)	m2 sqft
	square centimetre	cm2	cm2	US spelling: square centimeter	1.0 cm2 (0.16 sq in)	cm2 sqin
	square millimetre	mm2	mm2	US spelling: square millimeter	1.0 mm2 (0.0016 sq in)	mm2 sqin
non-SI metric	hectare	ha	ha		1.0 ha (2.5 acres)
Imperial & US customary	square mile	sqmi	sq mi		1.0 sq mi (2.6 km2)	sqmi km2
	acre	acre	(none)		1.0 acre (0.40 ha)
	square yard	sqyd	sq yd		1.0 sq yd (0.84 m2)
	square foot	sqft (sqfoot)	sq ft	code "sqfoot" will show "square foot" if plural. code "sqfoot" will show "foot" or "feet" depending on value.	1.0 sq ft (0.093 m2)	sqft m2 (sqfoot m2)
	square inch	sqin	sq in		1.0 sq in (6.5 cm2)	sqin cm2
Other	square nautical mile	sqnmi	sq nmi		1.0 sq nmi (3.4 km2; 1.3 sq mi)
	dunam	dunam	(none)	For alternative spellings and definitions see the full list	1.0 dunam (0.0010 km2; 0.00039 sq mi)
	tsubo	tsubo	(none)		1.0 tsubo (3.3 m2)
VOLUME (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
SI	cubic metre	m3	m3	US spelling: cubic meter one kilolitre	1.0 m3 (35 cu ft)
	cubic centimetre	cm3	cm3	US spelling: cubic centimeter one millilitre	1.0 cm3 (0.061 cu in)
		cc	cc
	cubic millimetre	mm3	mm3	US spelling: cubic millimeter	1.0 mm3 (6.1×10−5 cu in)
non-SI metric	kilolitre	kl	kl	US spelling: kiloliter one cubic metre	1.0 kl (35 cu ft)
		kL	kL
	litre	l	L	US spelling: liter one cubic decimetre Triple combinations are also possible. See the full list.	1.0 L (0.22 imp gal; 0.26 US gal)	l impgal l USgal l U.S.gal l USdrygal l U.S.drygal
		L	L			L impgal L impqt L USgal L U.S.gal L USdrygal L U.S.drygal
	centilitre	cl	cl	US spelling: centiliter	1.0 cl (0.35 imp fl oz; 0.34 US fl oz)
		cL	cL
	millilitre	ml	ml	US spelling: milliliter one cubic centimetre	1.0 ml (0.035 imp fl oz; 0.034 US fl oz)	ml impoz ml USoz ml U.S.oz
		mL	mL			mL impoz mL USoz mL U.S.oz
Imperial & US customary	cubic yard	cuyd	cu yd		1.0 cu yd (0.76 m3)
	cubic foot	cuft (cufoot)	cu ft	code "cufoot" will show "cubic foot" if plural. code "cufoot" will show "foot" or "feet" depending on value.	1.0 cu ft (0.028 m3)
	cubic inch	cuin	cu in		1.0 cu in (16 cm3)
Imperial	imperial barrel	impbbl	imp bbl	36 imp gal	1.0 imp bbl (160 L; 36 imp gal; 43 US gal)
	imperial bushel	impbsh	imp bsh	8 imp gal	1.0 imp bsh (36 L; 8.0 imp gal; 8.3 US dry gal)
		impbu	imp bu
	imperial gallon	impgal	imp gal	4.54609 litres by definition, also 4 imp qt or 8 imp pt or 160 imp fl oz Triple combinations are also possible. See the full list.	1.0 imp gal (4.5 L; 1.2 US gal)	impgal l impgal L impgal USgal impgal U.S.gal impgal USdrygal impgal U.S.drygal
	imperial quart	impqt	imp qt	1/4 imp gal or 40 imp fl oz	1.0 imp qt (1,100 ml; 38 US fl oz)
	imperial pint	imppt	imp pt	1/8 imp gal or 20 imp fl oz	1.0 imp pt (0.57 L)
	imperial fluid ounce	impoz (impfloz)	imp fl oz	1/160 imp gal	1.0 imp fl oz (28 ml; 0.96 US fl oz)	impoz USoz impoz U.S.oz impoz ml impoz mL
US customary liquid measure	US barrel	USbbl	US bbl	31½ US gal used for liquids except for oil and beer (see the full list)	1.0 US bbl (120 L; 32 US gal; 26 imp gal)
		U.S.bbl	U.S. bbl
	barrel	oilbbl	bbl	42 US gal	1.0 bbl (0.16 m3)
	US beer barrel	USbeerbbl (usbeerbbl)	US bbl		1.0 US bbl (120 L; 31 US gal; 26 imp gal)
		U.S.beerbbl (usbeerbbl)	U.S. bbl
	US gallon	USgal	US gal	231 cubic inches by definition, also 4 US qt or 8 US pt or 128 US fl oz Triple combinations are also possible. See the full list.	1.0 US gal (3.8 L; 0.83 imp gal)	USgal l USgal L USgal impgal
		U.S.gal	U.S. gal			USgal l USgal L USgal impgal
	US quart	USqt	US qt	1/4 US gal or 32 US fl oz	1.0 US qt (950 ml)
		U.S.qt	U.S. qt
	US pint	USpt	US pt	1/8 US gal or 16 US fl oz	1.0 US pt (0.47 L; 0.83 imp pt)
		U.S.pt	U.S. pt
	US fluid ounce	USoz (USfloz)	US fl oz	1/128 US gal	1.0 US fl oz (30 ml)	USoz ml USoz mL USoz impoz
		U.S.oz (U.S.floz)	U.S. fl oz			U.S.oz ml U.S.oz mL U.S.oz impoz
US customary dry measure	US dry barrel	USdrybbl	US dry bbl	105/32 US bsh	1.0 US dry bbl (0.12 m3)
		U.S.drybbl	U.S. dry bbl
	US bushel	USbsh	US bsh	2150.42 cubic inches by definition	1.0 US bsh (35 L; 8.0 US dry gal; 7.8 imp gal)
		U.S.bsh	U.S. bsh
	US bushel	USbu	US bu	2150.42 cubic inches by definition	1.0 US bu (35 L; 8.0 US dry gal; 7.8 imp gal)
		U.S.bu	U.S. bu
	US dry gallon	USdrygal	US dry gal	1/8 US bsh Triple combinations are also possible. See the full list.	1.0 US dry gal (4.4 L)	USdrygal l USdrygal L USdrygal impgal
		U.S.drygal	U.S. dry gal			U.S.drygal l U.S.drygal L U.S.drygal impgal
	US dry quart	USdryqt	US dry qt	1/32 US bsh	1.0 US dry qt (1,100 ml)
		U.S.dryqt	U.S. dry qt
	US dry pint	USdrypt	US dry pt	1/32 US bsh	1.0 US dry pt (550 ml)
		U.S.drypt	U.S. dry pt
SPEED (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
SI	metre per second	m/s	m/s	US spelling: meter per second	1.0 m/s (3.3 ft/s)	m/s ft/s (m/s foot/s)
non-SI metric	kilometre per hour	km/h	km/h	US spelling: kilometer per hour	1.0 km/h (0.62 mph)	km/h mph
Imperial & US customary	mile per hour	mph	mph		1.0 mph (1.6 km/h)	mph km/h mph kn
	foot per second	ft/s (foot/s)	ft/s	code "foot/s" will show "foot per second" if plural. code "foot/s" will show "foot" or "feet" depending on value.	1.0 ft/s (0.30 m/s)	ft/s m/s
Maritime units	knot	kn (knot)	kn		1.0 kn (1.9 km/h; 1.2 mph)	kn mph
FORCE (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
SI	giganewton	GN	GN	Triple combinations are also possible. See the full list.	1.0 GN (220,000,000 lbf)	GN LT-f GN LTf GN ST-f GN STf
	meganewton	MN	MN	Triple combinations are also possible. See the full list.	1.0 MN (220,000 lbf)	MN LT-f MN LTf MN ST-f MN STf
	kilonewton	kN	kN	Triple combinations are also possible. See the full list.	1.0 kN (220 lbf)	kN LT-f kN LTf kN ST-f kN STf
	newton	N	N		1.0 N (0.22 lbf)	N lb-f N lbf N oz-f N ozf
	millinewton	mN	mN		1.0 mN (0.0036 ozf)	mN oz-f mN ozf mN gr-f mN grf
	micronewton	μN (uN)	μN		1.0 μN (0.0016 grf)	μN gr-f μN grf
	nanonewton	nN	nN		1.0 nN (1.6×10−6 grf)	nN gr-f nN grf
cgs	megadyne	Mdyn	Mdyn		1.0 Mdyn (2.2 lbf)
	kilodyne	kdyn	kdyn		1.0 kdyn (0.036 ozf)
	dyne	dyn (dyne)	dyn		1.0 dyn (0.016 grf)
	millidyne	mdyn	mdyn		1.0 mdyn (1.6×10−5 grf)
Metric gravitational units	tonne-force	t-f	tf		1.0 tf (9.8 kN; 0.98 LTf; 1.1 STf)
		tf	tf
	kilogram-force	kg-f	kgf		1.0 kgf (9.8 N; 2.2 lbf)
		kgf	kgf
	gram-force	g-f	gf		1.0 gf (9.8 mN; 0.035 ozf)
		gf	gf
	milligram-force	mg-f	mgf		1.0 mgf (9.8 μN; 0.015 grf)
		mgf	mgf
Avoirdupois-based units	poundal	pdl	pdl		1.0 pdl (0.14 N)
	long ton-force	LT-f	LTf		1.0 LTf (10.0 kN)	LT-f ST-f
		LTf	long ton-force			LTf STf
	short ton-force	ST-f	STf		1.0 STf (8.9 kN)	ST-f LT-f
		STf	short ton-force			STf LTf
	pound-force	lb-f	lbf		1.0 lbf (4.4 N)
		lbf	lbf
	grain-force	gr-f	grf		1.0 grf (640 μN)
		grf	grf
ENERGY (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
SI	gigajoule	GJ	GJ		1.0 GJ (280 kWh)
	megajoule	MJ	MJ		1.0 MJ (0.28 kWh)
	kilojoule	kJ	kJ		1.0 kJ (240 cal)
	hectojoule	hJ	hJ		1.0 hJ (24 cal)
	decajoule	daJ	daJ		1.0 daJ (2.4 cal)
	joule	J	J		1.0 J (0.24 cal)
	decijoule	dJ	dJ		1.0 dJ (0.024 cal)
	centijoule	cJ	cJ		1.0 cJ (0.0024 cal)
	millijoule	mJ	mJ		1.0 mJ (0.00024 cal)
	microjoule	μJ (uJ)	μJ		1.0 μJ (2.4×10−7 cal)
	nanojoule	nJ	nJ		1.0 nJ (2.4×10−10 cal)
cgs	megaerg	Merg	Merg		1.0 Merg (0.10 J)
	kiloerg	kerg	kerg		1.0 kerg (0.10 mJ)
	erg	erg	(none)		1.0 erg (0.10 μJ)
Watt-hour multiples	terawatt-hour	TWh	TWh		1.0 TWh (3.6 PJ)
		TW.h	TW⋅h
	gigawatt-hour	GWh	GWh		1.0 GWh (3.6 TJ)
		GW.h	GW⋅h
	megawatt-hour	MWh	MWh		1.0 MWh (3.6 GJ)
		MW.h	MW⋅h
	kilowatt-hour	kWh	kWh		1.0 kWh (3.6 MJ)
		kW.h	kW⋅h
	watt-hour	Wh	Wh		1.0 Wh (3.6 kJ)
		W.h	W⋅h
Electron- volt multiples
	gigaelectronvolt	GeV	GeV		1.0 GeV (0.16 nJ)
	megaelectronvolt	MeV	MeV		1.0 MeV (0.16 pJ)
	kiloelectronvolt	keV	keV		1.0 keV (0.16 fJ)
	electronvolt	eV	eV		1.0 eV (0.16 aJ)
	millielectronvolt	meV	meV		1.0 meV (0.16 zJ)
Calorie multiples	calorie	Cal	Cal	The thermo-chemical calorie is the default definition. For others, see the full list.	1.0 Cal (4.2 kJ)
	megacalorie	Mcal	Mcal		1.0 Mcal (4.2 MJ)
	kilocalorie	kcal	kcal		1.0 kcal (4.2 kJ)
	calorie	cal	cal		1.0 cal (4.2 J)
	millicalorie	mcal	mcal		1.0 mcal (4.2 mJ)
pound/ ounce-foot/ inch-hour-minute-second	foot-poundal	ftpdl	ft⋅pdl		1.0 ft⋅pdl (0.042 J)
	foot-pound force	ftlbf	ft⋅lbf		1.0 ft⋅lbf (1.4 J)
		ftlb-f	ft⋅lbf
	inch-pound force	inlbf	in⋅lbf		1.0 in⋅lbf (110 mJ)
		inlb-f	in⋅lbf
	inch-ounce force	inozf	in⋅ozf		1.0 in⋅ozf (7.1 mJ)
		inoz-f	in⋅ozf
	horsepower-hour	hph	hp⋅h		1.0 hp⋅h (0.75 kWh)
British thermal unit	British thermal unit	Btu	Btu	The International Steam Table British thermal unit is used. For others, see the full list.	1.0 Btu (1.1 kJ)
		BTU	BTU
TNT-based units	gigatonne of TNT	GtTNT	(none)		1.0 gigatonne of TNT (4.2 EJ)
	gigaton of TNT	GtonTNT	(none)
	megatonne of TNT	MtTNT	(none)		1.0 megatonne of TNT (4.2 PJ)
	megaton of TNT	MtonTNT	Mt
	kilotonne of TNT	ktTNT	(none)		1.0 kilotonne of TNT (4.2 TJ)
	kiloton of TNT	ktonTNT	kt
	tonne of TNT	tTNT	(none)		1.0 tonne of TNT (4.2 GJ)
	ton of TNT	tonTNT	(none)
Other
	Hartree	Eh	Eh		1.0 Eh (27 eV)
	rydberg	Ry	Ry		1.0 Ry (14 eV)
	tonne of oil equivalent	toe	toe		1.0 toe (42 GJ)
	barrel of oil equivalent	BOE	BOE		1.0 BOE (6.1 GJ)
	cubic foot of natural gas	cuftnaturalgas (cufootnaturalgas)		Unit-code cufootnaturalgas will show "cubic foot of natural gas" if plural.	1,055,055.85262
	latm	latm	(none)		1.0 latm
		Latm	Latm
	impgalatm	impgalatm	(none)		1.0 impgalatm
	USgalatm	USgalatm (usgalatm)	(none)		1.0 USgalatm
		U.S.galatm (usgalatm)	U.S.galatm
TEMPERATURE (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
SI	K	K	K	Triple combinations are also possible. See the full list.	1.0 K (−272.15 °C; −457.87 °F)	K °C (K C) K °R (K R) K °F (K F)
	°C	°C (C)	°C		1.0 °C (33.8 °F)	°C K (C K) °C °R (C R) °C °F (C F)
Imperial & US customary	°R	°R (R)	°R		1.0 °R (0.556 K; −458.670 °F; −272.594 °C)	°R K (R K) °R °C (R C) °R °F (R F)
	°F	°F (F)	°F		1.0 °F (−17.2 °C)	°F K (F K) °F °C (F C) °F °R (F R)
	Celsius change	C-change		Used for temperature intervals instead of absolute temperatures Example:  {{convert|5|C-change|0}} warmer Result: 5 °C (9 °F) warmer
	Fahrenheit change	F-change		Used for temperature intervals instead of absolute temperatures Example:  {{convert|10|F-change|0}} colder Result: 10 °F (6 °C) colder
MASS (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
SI	kilogram	kg	kg	Triple combinations are also possible. See the full list.	1.0 kg (2.2 lb)	kg lb kg st
	gram	g	g		1.0 g (0.035 oz)	g oz
	milligram	mg	mg		1.0 mg (0.015 gr)	mg gr
	microgram	μg (ug)	μg		1.0 μg (1.5×10−5 gr)
non-SI metric	tonne	t	t	Triple combinations are also possible. See the full list.	1.0 t (0.98 long tons; 1.1 short tons)	t LT t ST
	metric ton	MT	t			MT LT MT ST
Avoirdupois	long ton	LT	(none)	2,240 lb used mostly in the British Commonwealth. Triple combinations are also possible. See the full list.	1.0 long ton (1.0 t)	LT t LT MT LT ST
		long ton	long ton
	short ton	ST	(none)	2,000 lb used mostly in the US. Triple combinations are also possible. See the full list.	1.0 short ton (0.91 t)	ST t ST MT ST LT
		short ton	short ton
	stone	st	st	14 lb used mostly in the British Commonwealth except Canada. Triple combinations are also possible. See the full list.	1.0 st (14 lb; 6.4 kg)	st kg st lb
	pound	lb	lb	Triple combinations are also possible. See the full list.	1.0 lb (0.45 kg)	lb kg lb st
	ounce	oz	oz		1.0 oz (28 g)	oz g
	drachm	drachm	(none)		1.0 drachm (1.8 g)
	drachm	dram	(none)
	grain	gr	gr	equivalent to the troy grain	1.0 gr (0.065 g)
Troy	troy ounce	ozt	ozt		1.0 ozt (1.1 oz; 31 g)
other	carat	carat	(none)		1.0 carat (0.20 g)
TORQUE (Full list)
system	unit	unit- code	abbrev- iation	notes	sample default conversion	combination output units
Industrial
SI	newton-metre	Nm	N⋅m	Triple combinations are also possible. See the full list.	1.0 N⋅m (0.74 lbf⋅ft)	Nm kg.m Nm lb.ft
Non-SI metric	kilogram metre	kg.m	kg⋅m		1.0 kg⋅m (9.8 N⋅m; 7.2 lb⋅ft)	kg.m Nm kg.m lb.ft
Imperial & US customary	pound force-foot	lb.ft	lb⋅ft		1.0 lb⋅ft (1.4 N⋅m)	lb.ft Nm lb.ft kg-m
Scientific
SI	newton-metre	N.m	N⋅m	Triple combinations are also possible. See the full list.	1.0 N⋅m (0.74 lbf⋅ft)	N.m kgf.m N.m lbf.ft
Non-SI metric	kilogram force-metre	kgf.m	kgf⋅m		1.0 kgf⋅m (9.8 N⋅m; 7.2 lbf⋅ft)	kgf.m N.m kgf.m lbf.ft
Imperial & US customary	pound force-foot	lbf.ft	lbf⋅ft		1.0 lbf⋅ft (1.4 N⋅m)	lbf.ft N.m lbf.ft kgf.m
PRESSURE
	unit	unit- code	abbrev- iation		sample default conversion
	gigapascal	GPa	GPa		1.0 GPa (150,000 psi)
	megapascal	MPa	MPa		1.0 MPa (150 psi)
	kilopascal	kPa	kPa		1.0 kPa (0.15 psi)
	hectopascal	hPa	hPa		1.0 hPa (0.015 psi)
	pascal	Pa	Pa		1.0 Pa (0.00015 psi)
	millipascal	mPa	mPa		1.0 mPa (1.5×10−7 psi)
	millibar	mbar	mbar		1.0 mbar (1.0 hPa)
		mb	mb
	decibar	dbar	dbar		1.0 dbar (10 kPa)
	bar	bar	(none)		1.0 bar (100 kPa)
	kilobarye	kBa	kBa		1.0 kBa (1.0 hPa)
	barye	Ba	Ba		1.0 Ba (0.10 Pa)
	standard atmosphere	atm	atm		1.0 atm (100 kPa)
	torr	Torr	Torr		1.0 Torr (0.13 kPa)
	millimetre of mercury	mmHg	mmHg		1.0 mmHg (0.13 kPa)
	inch of mercury	inHg	inHg		1.0 inHg (3.4 kPa)
	pound per square inch	psi	psi		1.0 psi (6.9 kPa)
FUEL EFFICIENCY
	unit	unit- code		notes		combinations
	kilometres per litre	km/l (km/L)		Use km/L to get "km/L"		km/l mpgimp km/l mpgus
	litres per 100 kilometres	l/100 km (L/100 km)		Use L/100 km to get "L/100 km"		l/100 km mpgimp l/100 km mpgus
	litres per kilometre	l/km (L/km)		Use L/km to get "L/km"		l/km impgal/mi l/km usgal/mi
	miles per imperial gallon	mpgimp				mpgimp mpgus
	miles per US gallon	mpgus (mpgUS, mpgU.S.)		Use mpgUS to get "US" Use mpgU.S. to get "U.S." mpgus will give "U.S." if spelling is set to US & "US" otherwise		mpgus mpgimp
	imperial gallons per mile	impgal/mi				impgal/mi
	US gallons per mile	usgal/mi (USgal/mi, U.S.gal/mi)		As above with the us vs US vs U.S.		usgal/mi
The mpgUS, mpgU.S., USgal/mi vs U.S.gal/mi, km/L, L/100 km and L/km variants work within combinations also (making 36 combinations in total).
POWER
Watts, kilowatts, milliwatts, etc. are supported. As is horsepower (English & metric). Use standard abbreviations as input code (lowercase hp for horsepower, for example)
POPULATION DENSITY
	unit	unit- code		notes		combinations
	inhabitants per square kilometre	PD/sqkm		PD stands for population density, i.e. humans (inhabitants)		PD/sqkm PD/sqmi
	per square kilometre	/sqkm		Used when the word 'inhabitants' would be inappropriate.		/sqkm /sqmi
	inhabitants per hectare	PD/ha				PD/ha PD/acre
	per hectare	/ha				/ha /acre
	inhabitants per square mile	PD/sqmi		PD stands for population density, i.e. humans (inhabitants)		PD/sqmi PD/sqkm
	per square mile	/sqmi		Used when the word 'inhabitants' would be inappropriate.		/sqmi /sqkm
	inhabitants per acre	PD/acre				PD/acre PD/ha
	per acre	/acre				/acre /ha
COST PER UNIT MASS
	unit	unit- code		notes		combinations
	dollars per pound	$/lb		"$" can mean US$, HK$, etc.		(none)
	dollars per kilogram	$/kg				(none)
	dollars per troy ounce	$/ozt		12 troy ounces in 1 troy pound		(none)

'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}} → 1,000 kilograms per hectolitre (100 lb/imp gal)

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

• {{convert|10|PD/sqmi|PD/sqkm}} → 10 inhabitants per square mile (3.9/km²)

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

• {{convert|26|mpgUS|l/100km mpgimp}} → 26 miles per US gallon (9.0 l/100 km; 31 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}} → 10 °C (50 °F) (standard temperature conversion)
• {{convert|10–15|C}} → 10–15 °C (50–59 °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}} → 10 °C (18 °F) increase in temperature
• {{convert|10–15|C-change}} → 10–15 °C (18–27 °F) warmer than normal

To produce multiple units in the output:

• {{convert|10|C-change|F-change K-change}} → 10 °C (18 °F; 10 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}} → 1 yard 2 feet 3 inches (1.60 m)
• {{convert|2|ft|3|in|cm}} → 2 feet 3 inches (69 cm)
• {{convert|1|lb|5|oz|g}} → 1 pound 5 ounces (600 g)

In output

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

• {{convert|2|m|ftin}} → 2 metres (6 ft 7 in)
• {{convert|2|m|ft in}} → 2 metres (6.6 ft; 79 in), using a space, returns the decimal point

Default behaviour, for comparison:

• {{convert|2|m}} → 2 metres (6 ft 7 in)

See also:

• {{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}} → $10 per mile ($6.2/km)
• {{convert|1500|$/ozt|$/g}} → $1,500 per troy ounce ($48/g)

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

• {{convert|10|$/mi|$/km|$=€}} → €10 per mile (€6.2/km)

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

• Module:Convert/helper can read regular input and pre-format it into {{Convert}}-accepted input.

Your template can accept |input=16 7/8 and use {{#invoke:Convert/helper|number|16 7/8}} → 16+7/8

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 Caravan (Q1056131))

• {{convert|input=P2073|qid=Q1056131|ftin|abbr=on}} → 1,500 mi (7,920,000 ft 0 in)
• {{convert|input=P2073|qid=Q1056131|km|abbr=on}} → 1,500 mi (2,400 km)
• {{convert|input=P2073|qid=Q1056131|km|abbr=on|disp=out}} → 2,400 km

For example see template:Infobox Telescope.

Sometimes a property may have more than one value against in 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))

• primary mirror (Q613628): {{convert|input=P2386|qual=Q613628|ft|abbr=on}} → 10.0 m (32.8 ft)
• secondary mirror (Q1395645): {{convert|input=P2386|qual=Q1395645|ft|abbr=on}} → 1 m (3.3 ft)

Parameter list

Parameter options for {{convert}}
Parameter	Value	Description	Note
|abbr=in	in	Use symbol for first (left-hand side) unit	Unit display
|abbr=off	off	Use name for all units	Unit display
|abbr=none	none
|abbr=on	on	Use symbol for all units	Unit display
|abbr=out	out	Use symbol for right-hand side unit (default)	Unit display
|abbr=unit	unit	Use symbol for all units when using scientific notation	Unit display
|abbr=values	values	Omit both the input and output units: show only the numbers	Unit display
|abbr=~	~	Shows both unit name and symbol	Unit display
|adj=mid|…	mid	User-specified text after the input unit; sets adj=on (adjective). Expects 1 unnamed parameter.	Word adding, adjective
|adj=on	on	Unit name is adjective (singular and hyphenated)	Grammar, adjective
|adj=pre|…	pre	User-specified text before input unit. Expects 1 unnamed parameter.	Word adding
|adj=ri0	ri0	Round input with precision 0	Input precision
|adj=ri1	ri1	Round input with precision 1	Input precision
|adj=ri2	ri2	Round input with precision 2	Input precision
|adj=ri3	ri3	Round input with precision 3	Input precision
|comma=5	5	Only use comma for thousands separator if 5 or more digits	Number format
|comma=gaps	gaps	Use gaps (space), not comma, for thousands separator	Number format
|comma=off	off	No thousands separator	Number format
|disp=b	b	Join input and output using " (...)" (default)	Join values
|disp=sqbr	sqbr	Join input and output using " [...]"	Join values
|disp=br	br	Join input and output using "<br/>"	Join values
|disp=comma	comma	Join input and output using ", "	Join values
|disp=or	or	Join input and output using " or "	Join values
|disp=number	number	Display output number only	Parts only
|disp=output number only	output number only
|disp=out	out	Display only output number and name/symbol	Parts only
|disp=output only	output only
|disp=preunit|…[|…]	preunit	Text to be inserted after value and before units, for both input and output, with optionally different text for output. Expects 1 or 2 unnamed parameters.	Word adding
|disp=table	table	Output is suitable for a table cell with align="right"	Table columns
|disp=tablecen	tablecen	Output is suitable for a table cell with align="center"	Table columns
|disp=unit	unit	Display input name/symbol only (not input number, not output)	Parts only
|disp=unit2	unit2	Display output name/symbol only (not input; not output number)	Parts only
|disp=x|…	x	Join input and output using user-specified text	Word adding
|frac=N	N	Show imperial number in fractions, denominator=N	Number format, fraction
|input=P2048	P2048 (e.g.)	Reads and converts Wikidata property	Inside template
|lk=in	in	Link left-hand side unit name or symbol	Unit link
|lk=on	on	Link all unit names or symbols (but not twice for the same unit)	Unit link
|lk=out	out	Link right-hand side unit name or symbol	Unit link
|order=flip	flip	Inverts order of input, output measurements (conversion first)	Order
|order=out	out	Displays output units in the order entered, skipping input unit	Order
|qid=Q1056131	Q1056131 (e.g.)	Reads Wikidata property from Wikidata item	Inside template; testing
|qual=Q613628	Q613628 (e.g.)	Qualify Wikidata property
|round=5	5	Rounds calculation to the nearest multiple of 5	Output precision
|round=25	25	Rounds calculation to the nearest multiple of 25	Output precision
|round=each	each	In a range, each number is rounded by the default rounding	Output precision
|sigfig=N	N	Round output number to N significant figures (N is a positive integer)	Output precision
|sortable=on	on	Adds invisible sort key	Table sort
|sp=us	us	Use U.S. spelling ("meter" instead of default "metre")	Spelling U.S. names
|spell=in	in	Spell input number in words	Spelling numbers
|spell=In	In	Spell input number in words with first letter uppercase	Spelling numbers
|spell=on	on	Spell input and output numbers in words	Spelling numbers
|spell=On	On	Spell input and output numbers in words with first letter uppercase	Spelling numbers
|$=€	€	Replace $-sign with a currency sign, for example in $/acre (no currency conversion happens)	Cost per unit
|debug=yes	yes	Debugging only. In a sortable table: show the normally hidden sort key	Table sort
|disp=flip	flip	Deprecated. Use |order=flip	Order
|sing=		Deprecated. Use |adj=	Plurals

Deprecated options

This list: 

Deprecated options should not be used. They may produce incorrect or undesired results and there is no guarantee that they will be supported in the future.

• disp=flip is deprecated. Use order=flip instead
• sing= is deprecated in any situation. Use adj= instead
• Range separator |xx| is deprecated (not MOS compliant). Use |x| instead
• Range separator |*| is deprecated (not MOS compliant). Use |x| instead

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:Convert in articles based on its TemplateData.

TemplateData for Convert

Converts measurements to other units.

Template parameters

This template prefers inline formatting of parameters.

Parameter		Description	Type	Status
Value	1	The value to convert.	Number	required
From unit	2	The unit for the provided value. Example km	Line	required
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	String	suggested
Precision or suffix	4	Significant digits after decimal dot or, if negative, exponent of ten.	Number	optional
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	String	optional
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	String	suggested
Spelling	sp	Spelling of units. Use “us” to display unit names using U.S. spelling. Example us	String	optional
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	Boolean	optional
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	String	deprecated
Ordering	order	“flip” returns converted value first, input value second. Example flip	String	optional
Significant figures	sigfig	Indicates the number of significant figures to be used in rounding.	Number	optional
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.	Number	optional
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” and “gaps5”: 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	String	optional
Sort key	sortable	“on” generates a hidden sort key Example on	String	optional
spell numbers?	spell	If used, spells input or input and output numbers in words, optionally capitalizing the first Example 'in', 'In', 'on', or 'On'	String	optional
singular	sing	If 'yes', uses singular form of units (deprecated) Example yes	String	deprecated
fraction	frac	fraction as rounding unit	Number	optional
currency symbol	$	sets currency symbol in both units Example $=€ will show " €10 per mile (€6.2/km)"	String	optional
WD property	input	Reeds the property value of the item (article), then converts it Example {{convert|input=P2046}} (P2046=area)	String	optional

Related pages

• {{Cvt}}
• {{SI units}}
• {{Inflation}} to convert historical prices to their current equivalent.