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{{{1}}} (Expression error: Unrecognized punctuation character "{". )

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Template {{convert}} calculates a measurement value (number × unit) into the same measurement by a different unit, and then presents the results, formatted. See also the unit symbols recognized by this template.

For example:

{{convert|2|km|mi}} → 2 kilometres (1.242742384 mi) (km entered, converted into miles)
{{convert|7|mi|km}} → 7 miles (11.265408 km) (mi entered, converted into km)

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

{{convert|2|km|mi|2|abbr=on}} → 2 mi (1.24 mi)
{{convert|7|mi|km|2|abbr=on}} → 7 km (11.27 km)

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

{{convert|2|to|5|km|mi}} → 2 (Expression error: Unexpected round operator )
{{convert|2|-|5|km|mi}} → 2 (Expression error: Unexpected round operator )

Combined effect example:

{{convert|2|-|5|km|mi|2|abbr=on}} → 2 (Expression error: Unexpected round operator )
{{convert|2|and|5|km|mi|sigfig=3|abbr=off}} → 2 (Expression error: Unexpected round operator )
See Help:Convert for more detailed, technical information

Units to convert

See also: the summary at Complete list of units for {{Convert}} and the complete list at Module:Convert/documentation/conversion data

Enter units to convert from into:

  • {{convert|1|lb|kg}} → 1 (Expression error: Missing operand for *. )
SI units generally accept prefixes, like "m" for milli (10), and "M" for mega (10)
For "per" units, use "/" (slash): kg/ha (see § 'per' units: kg/ha and § Currency per unit: $/km)
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 (Expression error: Missing operand for *. )

Using |abbr=in shows the symbol for first (left-hand side) unit, and the name instead of the symbol for the second unit:

  • {{convert|1|lb|kg|abbr=in}} → 1 (Expression error: Missing operand for *. )

To abbreviate both or neither:

  • {{convert|1|lb|kg|abbr=on}} → 1 (Expression error: Missing operand for *. )
  • {{convert|1|lb|kg|abbr=off}} → 1 (Expression error: Missing operand for *. )

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

Template {{cvt}} is the same as {{convert}}, except that it has |abbr=on as the default behavior. 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 miles (16.09344 km) distance.

Default behavior, for comparison:

  • {{convert|10|mi|km}} to go → 10 miles (16.09344 km) 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 9 cm (22.86 cm) nail.

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 100 feet (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 (37.4904 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) 123 feet is exactly 37.4904 m which is rounded 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 (152.4 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 (152.4 m) exact value is 152.4 m
{{convert|500|ft|cm|-3}} 500 feet (15,000 cm)
{{convert|500|ft|cm}} 500 feet (15,240 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 an integer as 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 integer. For instance, if the result is 8621 and the rounding parameter is "−2", 8600 will be displayed. If the result is "123.456" and the parameter is "0", 123 will be displayed. Essentially a positive or zero rounding parameter specifies the number of decimal places; a negative value specifies the number of trailing zeroes.

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 (365.76 m)
  • {{convert|1200|ft|m|sigfig=3}} → 1,200 feet (365.76 m)
  • {{convert|1200|ft|m|sigfig=2}} → 1,200 feet (365.76 m)
  • {{convert|1200|ft|m|sigfig=1}} → 1,200 feet (365.76 m)

Default behavior, for comparison:

  • {{convert|1200|ft|m}} → 1,200 feet (365.76 m)

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

  • {{convert|1200|ft|m|sigfig=0}} → 1,200 feet (365.76 m) Red XN

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 (32.808399 ft)
  • {{convert|10|m|ft|round=5}} → 10 metres (32.808399 ft)

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

  • {{convert|10|m|ft}} → 10 metres (32.808399 ft)
  • {{convert|10|m|ft|round=25}} → 10 metres (32.808399 ft)

Default behavior, for comparison:

  • {{convert|10|m|ft|sigfig=4}} → 10 metres (32.808399 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 x 200 x 3,000 metres (Expression error: Unrecognized word "x". ft)
  • {{convert|10 x 200 x 3000|m|ft|round=each}} → 10 x 200 x 3,000 metres (Expression error: Unrecognized word "x". 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 (2.18897637572 in)
  • {{convert|8|cm|in|frac=4}} → 8 centimetres (3.149606296 in)

The fraction is reduced when possible:

  • {{convert|8|cm|in|frac=100}} → 8 centimetres (3.149606296 in)

Default behavior uses decimal notation:

  • {{convert|5.56|cm|in}} → 5.56 centimetres (2.18897637572 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 (Expression error: Unrecognized punctuation character ",". )
  2. {{convert|10,000.1|C|F K}} → 10,000.1 (Expression error: Unrecognized punctuation character ",". )
  3. {{convert|-272|C|F K}} → −272 (Expression error: Missing operand for *. )
  4. {{convert|-272|C}} → −272 (Expression error: Missing operand for *. )
  5. {{convert|100|C|F K}} → 100 (Expression error: Missing operand for *. )
  6. {{convert|0|C|F K}} → 0 (Expression error: Missing operand for *. )

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 (Expression error: Unexpected round operator ), 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 (Expression error: Missing operand for *. )

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

{{convert|10000|C|0}} → 10,000 (Expression error: Missing operand for *. )

The precision of the input number in example (2) is six, so the precision of the Fahrenheit output is six now, 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 the 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 it is not possible to round above the decimal place (|adj=ri-1Red XN is invalid). Neither is there support for significant figures, multiples of a number, 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}} → 4.14159 miles (6.66524301696 km) Red XN (precisions are mismatched)
  • {{convert|4.14159|mi|km|0|adj=ri0}} → 4.14159 miles (7 km) Green tickY

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) Red XN (rounds intermediate calculation, giving a different result)

Into multiple units: 10 (Expression error: Missing operand for *. )

Separate the multiple output units by a space:

  • {{convert|10|C|F K}} → 10 (Expression error: Missing operand for *. )
  • {{convert|5|km|mi nmi}} → 5 kilometres (Expression error: Missing operand for *. )

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

See also:

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 (Expression error: Unexpected round operator ) Input can be hyphen (-) or en dash (–), output uses en dash
 &ndash; (en dash) {{convert|3|–|6|ft}} 3 (Expression error: Unexpected round operator )
and {{convert|3|and|6|ft}} 3 (Expression error: Unexpected round operator )
and(-) {{convert|3|and(-)|6|ft}} 3 (Expression error: Unexpected round operator ) |abbr=on abbreviates the first unit
and(-)|abbr=on {{convert|3|and(-)|6|ft|abbr=on}} 3 (Expression error: Unexpected round operator )
or {{convert|3|or|6|ft}} 3 (Expression error: Unexpected round operator )
to {{convert|3|to|6|ft}} 3 (Expression error: Unexpected round operator )
to(-) {{convert|3|to(-)|6|ft}} 3 (Expression error: Unexpected round operator ) |abbr=on abbreviates the first unit
to(-)|abbr=on {{convert|3|to(-)|6|ft|abbr=on}} 3 (Expression error: Unexpected round operator )
to about {{convert|3|to about|6|ft}} 3 (Expression error: Unexpected round operator )
+/- {{convert|3|+/-|6|ft}} 3 (Expression error: Unexpected round operator )
± &plusmn; {{convert|3|±|6|ft}} 3 (Expression error: Unexpected round operator )
+ {{convert|3|+|6|ft}} 3 (Expression error: Unexpected round operator )
, {{convert|3|,|6|ft}} 3 (Expression error: Unexpected round operator )
, and {{convert|3|, and|6|ft}} 3 (Expression error: Unexpected round operator )
, or {{convert|3|, or|6|ft}} 3 (Expression error: Unexpected round operator )
by {{convert|3|by|6|ft}} 3 (Expression error: Unexpected round operator )
x {{convert|3|x|6|ft}} 3 (Expression error: Unexpected round operator ) |abbr=on abbreviates and repeats the first unit
× &times; {{convert|3|×|6|ft}} 3 (Expression error: Unexpected round operator )
x|abbr=on {{convert|3|x|6|ft|abbr=on}} 3 (Expression error: Unexpected round operator )
xx |xx| is deprecated. Use |x| instead
* |*| is deprecated. Use |x| instead

Multiple dimensions: 6 (Expression error: Unexpected round operator )

Use by:

  • {{convert|6|by|12|ft|m}} → 6 (Expression error: Unexpected round operator )

Use ×, multiplication sign, or x, letter:

  • {{convert|6|x|12|m|ft}} → 6 (Expression error: Unexpected round operator )

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

  • {{convert|6|x|12|m|ft|abbr=on}} → 6 (Expression error: Unexpected round operator )

Lists of values: 20, 40, or 60 miles

{{convert|20|,|40|, or|60|mi}} → 20 (Expression error: Unexpected round operator )

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 (Expression error: Unexpected round operator ) Red XN

Default behavior, for comparison:

  • {{convert|1|ft|3|in|mm}} → 1 foot (Expression error: Unexpected round operator )

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

  • {{convert|380|x|1040|mm|ftin|order=flip}} → 380 (Expression error: Unexpected round operator )

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}} → 1 metre (3.2808399 ft)—default
{{convert|1|m|ft|sp=us}} → 1 meter (3.2808399 ft)

Spell out numbers: ten miles

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

  • {{convert|10|mi|m|spell=in}} → 10 miles (16,093.44 m)

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

  • {{convert|10|mi|m|spell=on}} → 10 miles (16,093.44 m)

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

  • {{convert|10|mi|m|spell=In}} → 10 miles (16,093.44 m)
  • {{convert|10|mi|m|spell=On}} → 10 miles (16,093.44 m)

Inserted before units: 4 planted acres

  • {{convert|4|acre||adj=pre|planted}} → 4 acres (Expression error: Unexpected round operator )

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 acres (Expression error: Unexpected round operator )
  • {{convert|4|acre||disp=preunit|planted |reforested-}} → 4 acres (Expression error: Unexpected round operator )

After adjective unit: A 10 feet (Expression error: Unexpected round operator ft) 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 feet (Expression error: Unrecognized word "long". 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 (Expression error: Missing operand for *. )
  • {{convert|2|metre}} → 2 (Expression error: Missing operand for *. )
  • {{convert|2|metre|abbr=on}} → 2 (Expression error: Missing operand for *. )
Exception

Entering the unit "foot" instead of "ft" forces singular output "foot", whatever the number is.

  • {{convert|100|foot|abbr=off}} → 100 (Expression error: Missing operand for *. )

Fractions: one-eighth of an imperial pint

The convert template also supports spelling out fractions.

  • {{convert|3+1/2|oz|g|spell=in}} → 3+1/2 (Expression error: Missing operand for +. )

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}} → 1/8 (Expression error: Unexpected round operator )

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 (Expression error: Missing operand for *. )
  • {{convert|120|e6acre}} → 120 (Expression error: Missing operand for *. )
  • {{convert|120|e6acre|e3km2}} → 120 (Expression error: Missing operand for *. )

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

  • {{convert|100|e6mi|e6km|abbr=on}} → 100 (Expression error: Missing operand for *. )

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 (Expression error: Missing operand for *. )
  • {{convert|100|e6mi|e6km|abbr=off}} → 100 (Expression error: Missing operand for *. )

Numbers

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

Metric prefixes
Text Symbol Factor
quetta Q 10
ronna R 10
yotta Y 10
zetta Z 10
exa E 10
peta P 10
tera T 10
giga G 10
mega M 10
kilo k 10
hecto h 10
deca da 10
(none)  1
deci d 10
centi c 10
milli m 10
micro μ 10
nano n 10
pico p 10
femto f 10
atto a 10
zepto z 10
yocto y 10
ronto r 10
quecto q 10

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:

  • 12 m (Expression error: Missing operand for *. m)
  • 12 m (Expression error: Missing operand for *. m)

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

  • {{convert|12|Gm|mi|abbr=on}} → 12 mi (Expression error: Missing operand for *. mi)
  • Mm: 12 mi (Expression error: Missing operand for *. mi)
  • km: 12 ft (39,370.0788 ft)
  • mm: 12 in (0.4724409444 in)
  • μm: 12 mm (Expression error: Missing operand for *. mm)
  • um: 12 mm (Expression error: Missing operand for *. 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 (Expression error: Missing operand for *. )
  • {{convert|12|in|μm|abbr=on}} → 12 (Expression error: Missing operand for *. )

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

  • {{convert|12|μm|μin|abbr=on}} → 12 (Expression error: Missing operand for *. )
Further information: Help:Convert units § SI prefixes

Engineering notation: 7 million km

Engineering notation can be entered with a prefix to the unit:

  • {{convert|70|e6m}} → 70 (Expression error: Missing operand for *. )
  • {{convert|70|e6m|abbr=on}} → 70 (Expression error: Missing operand for *. )

The same is possible for the output unit:

  • {{convert|230,000,000|ft|e6m}} → 230,000,000 feet (Expression error: Unrecognized punctuation character ",". )

The prefixes are:

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

Engineering notation may use "e" or "E", for example, e3km or E3km. Using uppercase E3km displays the factor as a word ("thousand") rather than as ×10. Using lowercase e3km displays the word if abbr=unit is used, or if abbr=off applies to the unit.

  • {{convert|70|e6m|e6ft}} → 70 (Expression error: Missing operand for *. )
  • {{convert|70|e6m|e6ft|abbr=off}} → 70 (Expression error: Missing operand for *. )
  • {{convert|70|e6m|e6ft|abbr=unit}} → 70 (Expression error: Missing operand for *. )
  • {{convert|70|E6m|e6ft|abbr=in}} → 70 (Expression error: Missing operand for *. )

Scientific notation: 1.23 × 10

In scientific notation, a number is written like 1.23×10. 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}} → 0 (Expression error: Missing operand for *. )
  • {{convert|0.00000005|atm|atm|abbr=on}} → 0.00000005 (Expression error: Missing operand for *. )

Input with fractions: 1+1/2 inches (13.7 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 inches (12.7 mm)
  • {{convert|1⁄2|in|mm|1}} → 1⁄2 inches (Expression error: Unrecognized punctuation character "⁄". 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 (Expression error: Unrecognized punctuation character "⁄". mm)

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

  • {{convert|-2-1⁄2|in|mm|1}} → −2−1⁄2 inches (Expression error: Unrecognized punctuation character "⁄". mm)

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

  • {{convert|2-1⁄2|in|mm|1}} → 2−1⁄2 inches (Expression error: Unrecognized punctuation character "⁄". mm). This is interpreted as a range from 2 inches to 1⁄2 inch.
  • {{convert|-2+1⁄2|in|mm|1}} → −2+1⁄2 inches (Expression error: Unrecognized punctuation character "⁄". mm) Red XN This is neither a mixed number nor a range, and mathematical expressions requiring calculations are not allowed here.
  • {{convert|2+½|in|mm|1}} → 2+½ inches (Expression error: Unrecognized punctuation character "½". mm) Red XN Fractions consisting of a single Unicode character are not allowed either.

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}} → 1//2 inches (Expression error: Unexpected / operator mm)
  • {{convert|6+3//8|in|mm|1}} → 6+3//8 inches (Expression error: Unexpected / operator mm)

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

  • {{convert|12.7|mm|frac=-2}} → 12.7 millimetres (Expression error: Missing operand for *. )
  • {{convert|161.9|mm|frac=-8}} → 161.9 millimetres (Expression error: Missing operand for *. )

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 (4,050,416.6728233 ft)
  • {{convert|1,234,567|m|ft}} → 1,234,567 metres (Expression error: Unrecognized punctuation character ",". ft)

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

  • {{convert|1234567|m|ft|comma=off}} → 1,234,567 metres (4,050,416.6728233 ft)

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

  • {{convert|1234567|m|ft|comma=gaps}} → 1,234,567 metres (4,050,416.6728233 ft)

Default behavior, for comparison:

  • {{convert|1234567|m|ft}} → 1,234,567 metres (4,050,416.6728233 ft)

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

  • {{convert|1234|m|ft|comma=5}} → 1,234 metres (4,048.5564366 ft)
  • {{convert|1234567|m|ft|comma=5}} → 1,234,567 metres (4,050,416.6728233 ft)

Default behavior, for comparison:

  • {{convert|1234|m|ft}} → 1,234 metres (4,048.5564366 ft)

Output manipulation

Brackets and separators: 10 m

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

  • {{convert|10|m|ft|disp=sqbr}} → 10 metres (32.808399 ft)
  • {{convert|10|m|ft|disp=comma}} → 10 metres (32.808399 ft)
  • {{convert|10|m|ft|disp=semicolon}} → 10 metres (32.808399 ft)
  • {{convert|10|m|ft|disp=or}} → 10 metres (32.808399 ft)

Default behavior, for comparison:

  • {{convert|10|m|ft}} → 10 metres (32.808399 ft)

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

  • {{convert|10|m|ft|disp=br}} → 10 metres (32.808399 ft)

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

  • {{convert|10|m|ft|disp=br()}} → 10 metres (32.808399 ft)

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

  • {{convert|10|m|ft|disp=x|_MyText_}} → 10 metres (Expression error: Unrecognized punctuation character "_". ft) (To display spaces, use &nbsp;)

Flipping (reordering) the two measurements: 1 mile (1,609.344 m)

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

  • {{convert|1|mi|m|order=flip}} → 1 mile (1,609.344 m)

Default behavior, for comparison:

  • {{convert|1|mi|m}} → 1 mile (1,609.344 m)

When converting to multiple units, the effect is:

  • {{convert|10|km|mi nmi|order=flip}} → 10 kilometres (Expression error: Missing operand for *. )
  • {{convert|10|km|nmi mi|order=flip}} → 10 kilometres (Expression error: Missing operand for *. )

Fixed ordering of output units: 100 (Expression error: Missing operand for *. )

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

  • {{convert|100|C|F C K|abbr=on|order=out}} → 100 (Expression error: Missing operand for *. )
  • {{convert|200|PS|kW hp|0|abbr=on|order=out}} → 200 (Expression error: Unexpected round operator )

See also: § Displaying parts of the output.

Displaying parts of the result: 2 (Expression error: Missing operand for *. )

It is possible to display only parts of the conversion result: The following examples show how to display only a part of the result.

Note: in Convert, abbr is synonym for unit symbol
Convert Returns Components
{{convert|2|cuyd|m3}} 2 (Expression error: Missing operand for *. ) all (default conversion)
{{convert|2|cuyd|m3|abbr=on}} 2 (Expression error: Missing operand for *. ) all (default conversion, abbr)
{{convert|2|cuyd|m3|abbr=values}} 2 (Expression error: Missing operand for *. ) numbers only
{{convert|2|cuyd|cuyd|disp=out}} 2 (Expression error: Missing operand for *. ) input value (workaround)
{{convert|2|cuyd|cuyd|disp=out|abbr=on}} 2 (Expression error: Missing operand for *. ) input value abbr (workaround)
{{convert|2|cuyd|m3|disp=unit}} 2 (Expression error: Missing operand for *. ) input unit
{{convert|2|cuyd|m3|disp=unit|adj=on}} 2 (Expression error: Missing operand for *. ) input unit, adjectival (hyphenated)
{{convert|2|cuyd|m3|disp=unit|adj=on|abbr=on}} 2 (Expression error: Missing operand for *. ) input unit, adjectival (abbr so not hyphenated)
{{convert|2|cuyd|m3|disp=unit|abbr=on}} 2 (Expression error: Missing operand for *. ) input unit abbr
{{convert|2|cuyd|m3|disp=out}} 2 (Expression error: Missing operand for *. ) output value, symbols
{{convert|2|cuyd|m3|disp=out|abbr=off}} 2 (Expression error: Missing operand for *. ) output value, names
{{convert|2|cuyd|m3|disp=out|adj=on}} 2 (Expression error: Missing operand for *. ) output, adjective
{{convert|2|cuyd|m3|disp=number}} 2 (Expression error: Missing operand for *. ) output number
{{convert|2|cuyd|m3|disp=unit2}} 2 (Expression error: Missing operand for *. ) output unit (abbr by default)
{{convert|2|cuyd|m3|disp=unit2|abbr=off}} 2 (Expression error: Missing operand for *. ) output unit (name)
{{convert|2|cuyd|m3|disp=unit2|abbr=on}} 2 (Expression error: Missing operand for *. ) output unit (abbr)

Display both input name and symbol: 2 kilopascals

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

  • {{convert|2|kPa|psi|abbr=~}} → 2 (Expression error: Missing operand for *. )
  • A {{convert|2|kPa|psi|abbr=~|adj=on}} pressure → A 2 (Expression error: Missing operand for *. ) 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 (62.1371192 mi) 100 kilometres (62.1371192 mi)

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}}

10 metres (32.808399 ft)

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

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

20 metres (65.616798 ft)

The units are added as a column header:

  kilograms pounds stone and pounds
|disp=table 10 (Expression error: Missing operand for *. )
|disp=table and |abbr=on 20 (Expression error: Missing operand for *. )
|disp=table and |abbr=off 30 (Expression error: Missing operand for *. )
|disp=tablecen 40 (Expression error: Missing operand for *. )
|disp=<other> (default) 50 (Expression error: Missing operand for *. )

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 (32.808399 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 15.75 m 15+3/4 metres (17.460629925 ft)
B 15.5 m 15.5 metres (50.85301845 ft)
C 16 m 16.0 metres (52.4934384 ft)
D 16 m 16 metres (52.4934384 ft)

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

See also: Template:Convert/list of units Units are case-sensitive: use kW, not KW or kw

The table below lists units supported by {{convert}}. More complete lists are linked for each dimension. For a complete list of all dimensions, see full list of units.

{{Convert}} uses unit-codes, which are similar to, but not necessarily exactly the same as, the usual written abbreviation for a given unit. These unit-codes are displayed in column 3 of the following tables. These are accepted as input by {{convert}} as the second and third unnamed parameters:

  • {{convert|100|kg|lb}} → 100 (Expression error: Missing operand for *. )
  • {{convert|100|lb|kg}} → 100 (Expression error: Missing operand for *. )

The unit-codes should be treated as case-sensitive:

  • {{convert|100|Mm|mm}} → 100 (Expression error: Missing operand for *. mm)

The output of {{convert}} can display multiple converted units, if further unit-codes are specified after the second unnamed parameter (without the pipe separator). Typical combination output units are listed below in column 7.

  • {{convert|55|nmi|km mi}} → 55 nautical miles (Expression error: Missing operand for *. )
  • {{convert|1|oz|ozt g gr}} → 1 (Expression error: Missing operand for *. )

Some units have alternative unit-codes. These are shown in brackets in column 3, e.g. °F (F). Either may be entered for Fahrenheit (but not a lower-case f).

Units

Explanation

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


Area

Area
(Full list)
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
SI 1 ] (Expression error: Missing operand for *. ]) km2 (none) US spelling: square kilometer
1.0 ] (Expression error: Missing operand for *. ])
  • km2 sqmi
1 ] (Expression error: Missing operand for *. ]) m2 (none) US spelling: square meter
1.0 ] (Expression error: Missing operand for *. ])
  • m2 sqft
1 ] (Expression error: Missing operand for *. ]) cm2 (none) US spelling: square centimeter
1.0 ] (Expression error: Missing operand for *. ])
  • cm2 sqin
1 ] (Expression error: Missing operand for *. ]) mm2 (none) US spelling: square millimeter
1.0 ] (Expression error: Missing operand for *. ])
  • mm2 sqin
non-SI metric 1 hectare (Expression error: Missing operand for *. ]) ha 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
Imperial
&
US customary
1 square mile (Expression error: Missing operand for *. ]) sqmi 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
  • sqmi km2
1 acre (Expression error: Missing operand for *. ]) acre 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
1 square yard (Expression error: Missing operand for *. ]) sqyd 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
1 square foot (Expression error: Missing operand for *. ]) sqft
(sqfoot)
1 (Expression error: Missing operand for *. ) long code "sqfoot" outputs square foot (and never feet) 1.0 ] (Expression error: Missing operand for *. ])
  • sqft m2 (sqfoot m2)
1 ] (Expression error: Missing operand for *. ]) sqin (none) 1.0 ] (Expression error: Missing operand for *. ])
  • sqin cm2
Other 1 square nautical mile (Expression error: Missing operand for *. ]) sqnmi 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) dunam (none) For alternative spellings and definitions see the full list 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) tsubo (none) 1.0 ] (Expression error: Missing operand for *. ])


Density

Density
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
Metric 1 ] (Expression error: Missing operand for *. ]) kg/m3 (none) 1.0 ] (Expression error: Missing operand for *. ])
  • kg/m3 lb/ft3 (kg/m3 lb/cuft)
  • kg/m3 lb/yd3 (kg/m3 lb/cuyd)
1 ] (Expression error: Missing operand for *. ]) g/m3 (none) 1.0 ] (Expression error: Missing operand for *. ])
  • g/m3 kg/m3
  • g/m3 lb/ft3 (g/cm3 lb/cuft)
  • g/m3 lb/yd3 (g/cm3 lb/cuyd)
Imperial
&
US customary
1 ] (Expression error: Missing operand for *. ]) lb/ft3 (none) 1.0 ] (Expression error: Missing operand for *. ])
  • lb/ft3 kg/m3 (lb/cu ft g/m3)
  • lb/ft3 g/m3 (lb/cu ft g/m3)
1 ] (Expression error: Missing operand for *. ]) lb/yd3 (none) 1.0 ] (Expression error: Missing operand for *. ])
  • lb/yd3 kg/m3 (lb/cuyd kg/m3)
  • lb/yd3 g/m3 (lb/cuyd g/m3)


Energy

Energy
(Full list)
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
SI 1 ] (Expression error: Missing operand for *. ]) GJ (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) MJ (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) kJ (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) hJ (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) daJ (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) J (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) dJ (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) cJ (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) mJ (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) μJ (uJ) (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) nJ (none) 1.0 ] (Expression error: Missing operand for *. ])
cgs 1 ] (Expression error: Missing operand for *. ]) Merg (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) kerg (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) erg (none) 1.0 ] (Expression error: Missing operand for *. ])
Watt-hour multiples 1 ] (Expression error: Missing operand for *. ]) TWh (none) 1.0 ] (Expression error: Missing operand for *. ])
TW.h 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) GWh (none) 1.0 ] (Expression error: Missing operand for *. ])
GW.h 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) MWh (none) 1.0 ] (Expression error: Missing operand for *. ])
MW.h 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) kWh (none) 1.0 ] (Expression error: Missing operand for *. ])
kW.h 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) Wh (none) 1.0 ] (Expression error: Missing operand for *. ])
W.h 1 (Expression error: Missing operand for *. )
Electron-
volt
multiples
1 ] (Expression error: Missing operand for *. ]) GeV (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) MeV (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) keV (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) eV (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) meV (none) 1.0 ] (Expression error: Missing operand for *. ])
Calorie multiples 1 ] (Expression error: Missing operand for *. ]) Cal (none) The thermo-chemical calorie is the default definition. For others, see the full list. 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) Mcal (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) kcal (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) cal (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) mcal (none) 1.0 ] (Expression error: Missing operand for *. ])
pound/
ounce
-foot/
inch-hour-minute-second
1 ] (Expression error: Missing operand for *. ]) ftpdl (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) ftlbf (none) 1.0 ] (Expression error: Missing operand for *. ])
ftlb-f 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) inlbf (none) 1.0 ] (Expression error: Missing operand for *. ])
inlb-f 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) inozf (none) 1.0 ] (Expression error: Missing operand for *. ])
inoz-f 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) hph (none) 1.0 ] (Expression error: Missing operand for *. ])
British thermal unit 1 ] (Expression error: Missing operand for *. ]) Btu (none) The International Steam Table British thermal unit is used. For others, see the full list. 1.0 ] (Expression error: Missing operand for *. ])
BTU 1 (Expression error: Missing operand for *. )
TNT-based units 1 ] (Expression error: Missing operand for *. ]) GtTNT (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) GtonTNT (none)
1 ] (Expression error: Missing operand for *. ]) MtTNT (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) MtonTNT (none)
1 ] (Expression error: Missing operand for *. ]) ktTNT (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) ktonTNT (none)
1 ] (Expression error: Missing operand for *. ]) tTNT (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) tonTNT (none)
Other
1 ] (Expression error: Missing operand for *. ]) Eh (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) Ry (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) toe (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) BOE (none) 1.0 ] (Expression error: Missing operand for *. ])
cubic foot of natural gas cuftnaturalgas (cufootnaturalgas) Unit-code cufootnaturalgas will show "cubic foot of natural gas" if plural. 1.0 ] (Expression error: Missing operand for *. ])


Force

Force
(Full list)
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
SI 1 ] (Expression error: Missing operand for *. ]) GN (none) Allows triple output units. See: full list. 1.0 ] (Expression error: Missing operand for *. ])
  • GN LT-f
  • GN LTf
  • GN ST-f
  • GN STf
1 ] (Expression error: Missing operand for *. ]) MN (none) Allows triple output units. See: full list. 1.0 ] (Expression error: Missing operand for *. ])
  • MN LT-f
  • MN LTf
  • MN ST-f
  • MN STf
1 ] (Expression error: Missing operand for *. ]) kN (none) Allows triple output units. See: full list. 1.0 ] (Expression error: Missing operand for *. ])
  • kN LT-f
  • kN LTf
  • kN ST-f
  • kN STf
1 ] (Expression error: Missing operand for *. ]) N (none) 1.0 ] (Expression error: Missing operand for *. ])
  • N lb-f
  • N lbf
  • N oz-f
  • N ozf
1 ] (Expression error: Missing operand for *. ]) mN (none) 1.0 ] (Expression error: Missing operand for *. ])
  • mN oz-f
  • mN ozf
  • mN gr-f
  • mN grf
1 ] (Expression error: Missing operand for *. ]) μN (uN) (none) 1.0 ] (Expression error: Missing operand for *. ])
  • μN gr-f
  • μN grf
1 ] (Expression error: Missing operand for *. ]) nN (none) 1.0 ] (Expression error: Missing operand for *. ])
  • nN gr-f
  • nN grf
cgs 1 ] (Expression error: Missing operand for *. ]) Mdyn (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) kdyn (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) dyn
(dyne)
(none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) mdyn (none) 1.0 ] (Expression error: Missing operand for *. ])
Metric gravitational units 1 ] (Expression error: Missing operand for *. ]) t-f (none) 1.0 ] (Expression error: Missing operand for *. ])
tf 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) kg-f (none) 1.0 ] (Expression error: Missing operand for *. ])
kgf 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) g-f (none) 1.0 ] (Expression error: Missing operand for *. ])
gf 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) mg-f (none) 1.0 ] (Expression error: Missing operand for *. ])
mgf 1 (Expression error: Missing operand for *. )
Avoirdupois-based units 1 ] (Expression error: Missing operand for *. ]) pdl (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) LT-f (none) 1.0 ] (Expression error: Missing operand for *. ])
  • LT-f ST-f
LTf 1 (Expression error: Missing operand for *. )
  • LTf STf
1 ] (Expression error: Missing operand for *. ]) ST-f (none) 1.0 ] (Expression error: Missing operand for *. ])
  • ST-f LT-f
STf 1 (Expression error: Missing operand for *. )
  • STf LTf
1 ] (Expression error: Missing operand for *. ]) lb-f (none) 1.0 ] (Expression error: Missing operand for *. ])
lbf 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) gr-f (none) 1.0 ] (Expression error: Missing operand for *. ])
grf 1 (Expression error: Missing operand for *. )


Length

Length
(Full list)
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
SI 1 ] (Expression error: Missing operand for *. ]) Mm (none) US spelling: megameter
1.0 ] (Expression error: Missing operand for *. ])
1 kilometre (Expression error: Missing operand for *. ]) km 1 (Expression error: Missing operand for *. ) US spelling: kilometer
1.0 ] (Expression error: Missing operand for *. ])
  • km mi
1 metre (Expression error: Missing operand for *. ]) m 1 (Expression error: Missing operand for *. ) US spelling: meter
1.0 ] (Expression error: Missing operand for *. ])
  • m ft
  • m ftin
1 centimetre (Expression error: Missing operand for *. ]) cm 1 (Expression error: Missing operand for *. ) US spelling: centimeter
1.0 ] (Expression error: Missing operand for *. ])
  • cm in
1 millimetre (Expression error: Missing operand for *. ]) mm 1 (Expression error: Missing operand for *. ) US spelling: millimeter
1.0 ] (Expression error: Missing operand for *. ])
  • mm in
1 ] (Expression error: Missing operand for *. ]) μm (um) (none) US spelling: micrometer
1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) nm (none) US spelling: nanometer
1.0 ] (Expression error: Missing operand for *. ])
non-SI metric 1 ] (Expression error: Missing operand for *. ]) Å
(angstrom)
(none) 1.0 ] (Expression error: Missing operand for *. ])
Imperial
&
US customary
1 mile (Expression error: Missing operand for *. ]) mi 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
  • mi km
1 ] (Expression error: Missing operand for *. ]) furlong (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) chain (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) rd (none) For other names of this unit see the full list. 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) fathom (none) fathom ≡ 6 ft 1.0 ] (Expression error: Missing operand for *. ])
1 yard (Expression error: Missing operand for *. ]) yd 1 (Expression error: Missing operand for *. ) assumes the international definition 1.0 ] (Expression error: Missing operand for *. ])
1 foot (Expression error: Missing operand for *. ]) ft (foot) 1 (Expression error: Missing operand for *. ) long code "foot" outputs foot (and never feet)

Use of ′ and ″ symbols violates MOSNUM so is not provided.

1.0 ] (Expression error: Missing operand for *. ])
  • ftin (feet and inches)
  • ft m (foot m)
1 inch (Expression error: Missing operand for *. ]) in 1 (Expression error: Missing operand for *. ) Use of ′ and ″ symbols violates MOSNUM so is not provided. 1.0 ] (Expression error: Missing operand for *. ])
  • in cm
  • in mm
Other 1 nautical mile (Expression error: Missing operand for *. ]) nmi 1 (Expression error: Missing operand for *. ) the international standard nautical mile
For other nautical miles see the full list.
1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) pc (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) ly (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) AU 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])


Mass

Mass
(Full list)
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
SI 1 ] (Expression error: Missing operand for *. ]) kg (none) Allows triple output units. See: full list. 1.0 ] (Expression error: Missing operand for *. ])
  • kg lb
  • kg st
1 ] (Expression error: Missing operand for *. ]) g (none) 1.0 ] (Expression error: Missing operand for *. ])
  • g oz
1 ] (Expression error: Missing operand for *. ]) mg (none) 1.0 ] (Expression error: Missing operand for *. ])
  • mg gr
1 ] (Expression error: Missing operand for *. ]) μg (ug) (none) 1.0 ] (Expression error: Missing operand for *. ])
non-SI metric 1 ] (Expression error: Missing operand for *. ]) t (none) Allows triple output units. See: full list. 1.0 ] (Expression error: Missing operand for *. ])
  • t LT
  • t ST
1 ] (Expression error: Missing operand for *. ]) MT (none)
  • MT LT
  • MT ST
Avoirdupois 1 ] (Expression error: Missing operand for *. ]) LT (none) 2,240 lb
used mostly in the British Commonwealth.
Allows triple output units. See: full list.
1.0 ] (Expression error: Missing operand for *. ])
  • LT t
  • LT MT
  • LT ST
long ton 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) ST (none) 2,000 lb
used mostly in the US.
Allows triple output units. See: full list.
1.0 ] (Expression error: Missing operand for *. ])
  • ST t
  • ST MT
  • ST LT
short ton 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) st (none) 14 lb
used previously in the British Commonwealth except Canada.
Allows triple output units. See: full list.
1.0 ] (Expression error: Missing operand for *. ])
  • st kg
  • st lb
1 ] (Expression error: Missing operand for *. ]) lb (none) Allows triple output units. See: full list. 1.0 ] (Expression error: Missing operand for *. ])
  • lb kg
  • lb st
1 ] (Expression error: Missing operand for *. ]) oz (none) 1.0 ] (Expression error: Missing operand for *. ])
  • oz g
1 ] (Expression error: Missing operand for *. ]) drachm (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) dram (none)
1 ] (Expression error: Missing operand for *. ]) gr (none) equivalent to the troy grain 1.0 ] (Expression error: Missing operand for *. ])
Troy 1 ] (Expression error: Missing operand for *. ]) ozt (none) 1.0 ] (Expression error: Missing operand for *. ])
other 1 ] (Expression error: Missing operand for *. ]) carat (none) 1.0 ] (Expression error: Missing operand for *. ])


Speed

Speed
(Full list)
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
SI 1 ] (Expression error: Missing operand for *. ]) m/s (none) US spelling: meter per second
1.0 ] (Expression error: Missing operand for *. ])
  • m/s ft/s (m/s foot/s)
non-SI metric 1 ] (Expression error: Missing operand for *. ]) km/h (none) US spelling: kilometer per hour
1.0 ] (Expression error: Missing operand for *. ])
  • km/h mph
Imperial
&
US customary
1 ] (Expression error: Missing operand for *. ]) mph (none) 1.0 ] (Expression error: Missing operand for *. ])
  • mph km/h
  • mph kn
1 ] (Expression error: Missing operand for *. ]) ft/s (foot/s) (none) long code "foot/s" outputs foot per second (and never feet) 1.0 ] (Expression error: Missing operand for *. ])
  • ft/s m/s
Maritime units 1 ] (Expression error: Missing operand for *. ]) kn (knot) (none) 1.0 ] (Expression error: Missing operand for *. ])
  • kn mph


Temperature

Temperature
(Full list)
system unit unit-
code
symbol notes sample default
conversion
combination
output units
SI 1 K (Expression error: Missing operand for *. ]) K 1 (Expression error: Missing operand for *. ) Allows triple output units. See: full list. 1.0 ] (Expression error: Missing operand for *. ])
  • K °C (K C)
  • K °R (K R)
  • K °F (K F)
1 °C (Expression error: Missing operand for *. ]) °C (C) 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
  • °C K (C K)
  • °C °R (C R)
  • °C °F (C F)
Imperial
&
US customary
1 °R (Expression error: Missing operand for *. ]) °R (R) 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
  • °R K (R K)
  • °R °C (R C)
  • °R °F (R F)
1 °F (Expression error: Missing operand for *. ]) °F (F) 1 (Expression error: Missing operand for *. ) 1.0 ] (Expression error: Missing operand for *. ])
  • °F K (F K)
  • °F °C (F C)
  • °F °R (F R)
Celsius change C-change Used for temperature intervals instead of actual temperatures
Example:  {{convert|5|C-change|0}} warmer
Result: 5 (Expression error: Missing operand for *. ) warmer
Fahrenheit change F-change Used for temperature intervals instead of actual temperatures
Example:  {{convert|10|F-change|0}} colder
Result: 10 (Expression error: Missing operand for *. ) colder


Torque

Torque
(Full list)
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
Industrial
SI 1 ] (Expression error: Missing operand for *. ]) Nm (none) Triple combinations are also possible. See the full list. 1.0 ] (Expression error: Missing operand for *. ])
  • Nm kg.m
  • Nm lb.ft
Non-SI metric 1 ] (Expression error: Missing operand for *. ]) kg.m (none) 1.0 ] (Expression error: Missing operand for *. ])
  • kg.m Nm
  • kg.m lb.ft
Imperial
&
US customary
1 ] (Expression error: Missing operand for *. ]) lb.ft (none) 1.0 ] (Expression error: Missing operand for *. ])
  • lb.ft Nm
  • lb.ft kg-m
Scientific
SI 1 ] (Expression error: Missing operand for *. ]) N.m (none) Triple combinations are also possible. See the full list. 1.0 ] (Expression error: Missing operand for *. ])
  • N.m kgf.m
  • N.m lbf.ft
Non-SI metric 1 ] (Expression error: Missing operand for *. ]) kgf.m (none) 1.0 ] (Expression error: Missing operand for *. ])
  • kgf.m N.m
  • kgf.m lbf.ft
Imperial
&
US customary
1 ] (Expression error: Missing operand for *. ]) lbf.ft (none) 1.0 ] (Expression error: Missing operand for *. ])
  • lbf.ft N.m
  • lbf.ft kgf.m


Volume

Volume
(Full list)
system unit unit-
code
symbol or
abbrev.
notes sample default
conversion
combination
output units
SI 1 ] (Expression error: Missing operand for *. ]) m3 (none) US spelling: cubic meter
one kilolitre
1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) cm3 (none) US spelling: cubic centimeter
one millilitre
1.0 ] (Expression error: Missing operand for *. ])
cc 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) mm3 (none) US spelling: cubic millimeter
1.0 ] (Expression error: Missing operand for *. ])
non-SI metric 1 ] (Expression error: Missing operand for *. ]) kl (none) US spelling: kiloliter
one cubic metre
1.0 ] (Expression error: Missing operand for *. ])
kL 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) l (none) US spelling: liter
one cubic decimetre
Allows triple output units. See: full list.
1.0 ] (Expression error: Missing operand for *. ])
  • l impgal
  • l USgal
  • l U.S.gal
  • l USdrygal
  • l U.S.drygal
L 1 (Expression error: Missing operand for *. )
  • L impgal
  • L impqt
  • L USgal
  • L U.S.gal
  • L USdrygal
  • L U.S.drygal
1 ] (Expression error: Missing operand for *. ]) cl (none) US spelling: centiliter
1.0 ] (Expression error: Missing operand for *. ])
cL 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) ml (none) US spelling: milliliter
one cubic centimetre
1.0 ] (Expression error: Missing operand for *. ])
  • ml impoz
  • ml USoz
  • ml U.S.oz
mL 1 (Expression error: Missing operand for *. )
  • mL impoz
  • mL USoz
  • mL U.S.oz
Imperial
&
US customary
1 ] (Expression error: Missing operand for *. ]) cuyd (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) cuft (cufoot) (none) long code "cufoot" outputs cubic foot (and never feet) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) cuin (none) 1.0 ] (Expression error: Missing operand for *. ])
Imperial 1 ] (Expression error: Missing operand for *. ]) impbbl (none) 36 imp gal 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) impbsh (none) 8 imp gal 1.0 ] (Expression error: Missing operand for *. ])
impbu 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) impgal (none) 4.54609 litres by definition, also
4 imp qt or 8 imp pt or 160 imp fl oz
Allows triple output units. See: full list.
1.0 ] (Expression error: Missing operand for *. ])
  • impgal l
  • impgal L
  • impgal USgal
  • impgal U.S.gal
  • impgal USdrygal
  • impgal U.S.drygal
1 ] (Expression error: Missing operand for *. ]) impqt (none) 1/4 imp gal or 40 imp fl oz 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) imppt (none) 1/8 imp gal or 20 imp fl oz 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) impoz (impfloz) (none) 1/160 imp gal 1.0 ] (Expression error: Missing operand for *. ])
  • impoz USoz
  • impoz U.S.oz
  • impoz ml
  • impoz mL
US customary
liquid measure
1 ] (Expression error: Missing operand for *. ]) USbbl (none) 31½ US gal
used for liquids except for oil and beer (see the full list)
1.0 ] (Expression error: Missing operand for *. ])
U.S.bbl 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) oilbbl (none) 42 US gal 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) USbeerbbl
(usbeerbbl)
(none) 1.0 ] (Expression error: Missing operand for *. ])
U.S.beerbbl
(usbeerbbl)
1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) USgal (none) 231 cubic inches by definition, also
4 US qt or 8 US pt or 128 US fl oz
Allows triple output units. See: full list.
1.0 ] (Expression error: Missing operand for *. ])
  • USgal l
  • USgal L
  • USgal impgal
U.S.gal 1 (Expression error: Missing operand for *. )
  • USgal l
  • USgal L
  • USgal impgal
1 ] (Expression error: Missing operand for *. ]) USqt (none) 1/4 US gal or 32 US fl oz 1.0 ] (Expression error: Missing operand for *. ])
U.S.qt 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) USpt (none) 1/8 US gal or 16 US fl oz 1.0 ] (Expression error: Missing operand for *. ])
U.S.pt 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) USoz
(USfloz)
(none) 1/128 US gal 1.0 ] (Expression error: Missing operand for *. ])
  • USoz ml
  • USoz mL
  • USoz impoz
U.S.oz
(U.S.floz)
1 (Expression error: Missing operand for *. )
  • U.S.oz ml
  • U.S.oz mL
  • U.S.oz impoz
US customary
dry measure
1 ] (Expression error: Missing operand for *. ]) USdrybbl (none) 105/32 US bsh 1.0 ] (Expression error: Missing operand for *. ])
U.S.drybbl 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) USbsh (none) 2150.42 cubic inches by definition 1.0 ] (Expression error: Missing operand for *. ])
U.S.bsh 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) USbu (none) 2150.42 cubic inches by definition 1.0 ] (Expression error: Missing operand for *. ])
U.S.bu 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) USdrygal (none) 1/8 US bsh
Allows triple output units. See: full list.
1.0 ] (Expression error: Missing operand for *. ])
  • USdrygal l
  • USdrygal L
  • USdrygal impgal
U.S.drygal 1 (Expression error: Missing operand for *. )
  • U.S.drygal l
  • U.S.drygal L
  • U.S.drygal impgal
1 ] (Expression error: Missing operand for *. ]) USdryqt (none) 1/32 US bsh 1.0 ] (Expression error: Missing operand for *. ])
U.S.dryqt 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) USdrypt (none) 1/32 US bsh 1.0 ] (Expression error: Missing operand for *. ])
U.S.drypt 1 (Expression error: Missing operand for *. )


Extra

Pressure
(Full list)
unit unit-
code
symbol or
abbrev.
sample default
conversion
1 ] (Expression error: Missing operand for *. ]) GPa (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) MPa (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) kPa (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) hPa (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) Pa (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) mPa (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) mbar (none) 1.0 ] (Expression error: Missing operand for *. ])
mb 1 (Expression error: Missing operand for *. )
1 ] (Expression error: Missing operand for *. ]) dbar (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) bar (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) kBa (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) Ba (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) atm (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) Torr (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) mmHg (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) inHg (none) 1.0 ] (Expression error: Missing operand for *. ])
1 ] (Expression error: Missing operand for *. ]) psi (none) 1.0 ] (Expression error: Missing operand for *. ])


Fuel efficiency

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).


Population density

Population density
unit unit-
code
notes combinations
inhabitants per square kilometre PD/km2 PD stands for population density, i.e. humans (inhabitants)
  • PD/km2 PD/sqmi
per square kilometre /km2 Used when the word 'inhabitants' would be inappropriate.
  • /km2 /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/km2
per square mile /sqmi Used when the word 'inhabitants' would be inappropriate.
  • /sqmi /km2
inhabitants per acre PD/acre
  • PD/acre PD/ha
per acre /acre
  • /acre /ha


Cost per unit mass

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/ha, miles per gallon

When using a slash (/), a unit like kg/ha is recognized as kilograms per hectare and will be converted in to other mass/area units. A unit in the numerator is not required.

  • {{convert|1000|kg/ha}} → 1,000 (Expression error: Missing operand for *. )
  • {{convert|350|/in2}} → 350 (Expression error: Missing operand for *. )

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

  • {{convert|10|PD/sqmi|PD/km2}} → 10 (Expression error: Missing operand for *. )

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 (Expression error: Missing operand for *. )

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 (Expression error: Missing operand for *. ) (standard temperature conversion)
  • {{convert|10|-|15|C}} → 10 (Expression error: Unexpected round operator ) (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 (Expression error: Missing operand for *. ) increase in temperature
  • {{convert|10|-|15|C-change}} → 10 (Expression error: Unexpected round operator ) warmer than normal

To produce multiple units in the output:

  • {{convert|10|C-change|F-change K-change}} → 10 (Expression error: Missing operand for *. ) 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 (Expression error: Unexpected round operator )
  • {{convert|2|ft|3|in|cm}} → 2 feet (Expression error: Unexpected round operator )
  • {{convert|1|lb|5|oz|g}} → 1 (Expression error: Unexpected round operator )

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 (Expression error: Missing operand for *. )
  • {{convert|2|m|ft in}} → 2 metres (Expression error: Missing operand for *. ), using a space, returns the decimal point

Default behavior, for comparison:

  • {{convert|2|m}} → 2 metres (Expression error: Missing operand for *. )

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|3.39|$/USgal|$/L}} → 3.39 (Expression error: Missing operand for *. )
  • {{convert|10000|€/ha|€/acre}} → 10,000 (Expression error: Missing operand for *. )
  • {{convert|10|¢/mi|¢/km}} → 10 (Expression error: Missing operand for *. )
  • {{convert|1500|¥/lb|¥/kg}} → 1,500 (Expression error: Missing operand for *. )

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

  • {{convert|10|$/mi|$/km|$=€}} → 10 (Expression error: Missing operand for *. )

It is not possible to convert the currency:

  • {{convert|10|$/lb|€/kg}} → 10 (Expression error: Missing operand for *. ) Red XN

So, this result (mixed currencies) is not possible: $15 per mile (€8.6/km) Red XN

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. Note this function does not have the full capabilities of the Convert template; it only converts fractions (and horse race distances)
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) of Cessna 208 Caravan (Q1056131):

  • {{convert|input=P2073|qid={{get QID|Cessna 208 Caravan}}|ftin|abbr=on}} → ftin (Expression error: Unrecognized word "ftin". )
  • {{convert|input=P2073|qid=Q1056131|km|abbr=on}} → km (Expression error: Unrecognized word "km". )
  • {{convert|input=P2073|qid=Q1056131|km|abbr=on|disp=out}} → km (Expression error: Unrecognized word "km". )
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))

  • primary mirror (Q613628): {{convert|input=P2386|qual=Q613628|ft|abbr=on}} → ft (Expression error: Unrecognized word "ft". )
  • secondary mirror (Q1395645): {{convert|input=P2386|qual=Q1395645|ft|abbr=on}} → ft (Expression error: Unrecognized word "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 (default for {{cvt}}) 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 €/hectare Cost per unit
No currency conversion happens
|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.

ParameterDescriptionTypeStatus
Value1

The value to convert.

Numberrequired
From unit2

The unit for the provided value.

Suggested values
km2 m2 cm2 mm2 ha sqmi acre sqyd sqft sqin km m cm mm mi yd ft in kg g mg lb oz m/s km/h mph K C F m3 cm3 mm3 L mL cuft cuin U.S.gal U.S.oz psi mpgU.S. $/lb $/kg
Example
km
Stringrequired
To units3

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

Suggested values
km2 m2 cm2 mm2 ha sqmi acre sqyd sqft sqin km m cm mm mi yd ft in kg g mg lb oz m/s km/h mph K C F m3 cm3 mm3 L mL cuft cuin U.S.gal U.S.oz psi mpgU.S. $/lb $/kg
Example
mi nmi
Stringsuggested
Precision or suffix4

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

Numberoptional
Link unitslk

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. For more fine-grained control over which units to link, use the template multiple times.

Suggested values
in out on off
Default
off
Example
on
Stringoptional
Abbreviationabbr

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).

Suggested values
in off none on out unit values ~
Default
out
Example
on, unit, in, out, off
Stringsuggested
Spellingsp

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

Example
us
Stringoptional
Adjectiveadj

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.

Suggested values
mid on pre ri0 ri1 ri2 ri3 off
Default
off
Example
on
Unbalanced wikitextoptional
Conversiondisp

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.

Suggested values
b sqbr br comma semicolon or number output number only out output only preunit table tablecen unit unit2 x
Example
b
Stringoptional
Orderingorder

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

Suggested values
flip out
Example
flip
Stringoptional
Significant figuressigfig

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

Numberoptional
Rounding outputround

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 separatorcomma

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
Booleanoptional
Sort keysortable

“on” generates a hidden sort key

Example
on
Booleanoptional
Spell numbers?spell

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

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

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

Example
yes
Booleandeprecated
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
Mach altitude (ft)altitude_ft

Mach (speed) depends on altitide

Suggested values
10000
Numberoptional
Mach altitude (m)altitude_m

Mach (speed) depends on altitude

Numberoptional
WD propertyinput

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

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

See also

  • {{Cvt}}
  • {{SI units}}
  • {{Inflation}}, for converting historical prices to their current equivalent
  • {{To USD}}, for currency conversions
{{Convert}} help, documentation and maintenance
Help
Documentation
Units
Error tracking
Modules
See alsoModule:Convert/helper (preprocess height input)
Related
Categories: