Template:Convert/doc

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See Help:Convert for up-to-date and more complete information

Template {{convert}} calculates measurements from one unit (you entered) to another one, and then presents the results. For example:

{{convert|2|km|mi}} → 2 kilometres (1.2 mi)
{{convert|7|mi|km}} → 7 miles (11 km)

Multiple formatting and calculation options are listed below.

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

The 'abbreviation' is actually the 'symbol'. |abbr=on will produce the symbol of the unit, instead of its name:

{{convert|1|lb|kg}} → 1 pound (0.45 kg) -- to compare
{{convert|1|lb|kg|abbr=on}} → 1 lb (0.45 kg)

Adjective: a 10-mile distance

Use |adj=on to produce the adjective form. The difference:

{{convert|10|mi|km}} to go → 10 miles (16 km) to go. -- to compare
A {{convert|10|mi|km|adj=on}} distance → A 10-mile (16 km) distance. -- Adjective

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

In detail, it is 100 feet (30,480 mm)*. In practical use, it is common to round the calculated metric number. With that, there are several possibilities.

Default rounding

By 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 figures, 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|0}} 123 feet (37 m)
{{convert|123|ft|m|1}} 123 feet (37.5 m)
{{convert|550|ft|m|0}} 550 feet (168 m) Approximate value is 167.64 m
{{convert|550|ft|m}} 550 feet (170 m) Rounds to 170, when approximate value is 167.64 m
{{convert|500|ft|m|0}} 500 feet (152 m) Approximate value is 152.4 m
{{convert|500|ft|m}} 500 feet (150 m) Rounds to 150, when approximate value is 152.4 m

Convert supports four types of rounding:

Round to a given precision: use |precision=

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 power of ​110 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: use |sigfig=

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

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

Setting |sigfig= is meaningless

  • {{convert|1200|ft|m|sigfig=0}} → 1,200 feet (370 m)*

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)
To compare: {{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 14 inch

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

{{convert|6|cm|in|frac=2}}6 centimetres (2+12 in)
{{convert|6|cm|in|frac=4}}6 centimetres (2+14 in)
{{convert|6|cm|in|frac=100}}6 centimetres (2+925 in)
To compare: {{convert|6|cm|in}} → 6 centimetres (2.362 in)

Rounding temperatures °C, °F and K

In temperatures, the conversion will be rounded either to 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.

{{convert|10|C|F K}} → 10 °C (50 °F; 283 K)

Note

For a temperature difference, like to convert "A rise of 20 °C", use |C-change=20 &tc.
{{convert|20|C-change|F-change K-change}} → A rise of 20 °C (36 °F; 20 K)
To compare: "A temperature of 20 °C" would yield: A temperature of 20 °C (68 °F; 293 K)

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)

Multiple measurements

Range of values: 6 to 17 kg (13 to 37 lb)

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

to, to(-), - (ndash or hyphen), or, and, ±, +/-:
{{convert|6|to|17|kg|lb|abbr=on}} → 6 to 17 kg (13 to 37 lb)
{{convert|-10|to|-20|C}} → −10 to −20 °C (14 to −4 °F)
{{convert|6|to(-)|17|kg|lb}} → 6 to 17 kilograms (13–37 lb)
{{convert|6|and|17|kg|lb}} → 6 and 17 kilograms (13 and 37 lb)
{{convert|60|±|10|m|ft}} → 60 ± 10 metres (197 ± 33 ft)
{{convert|60|+/-|10|m|ft}} → 60 ± 10 metres (197 ± 33 ft)

Multiple dimensions: 6 by 12 feet (1.8 by 3.7 m)

{{convert|6|by|12|ft|m}} → 6 by 12 feet (1.8 by 3.7 m)
{{convert|6|x|12|m|ft}} → 6 by 12 metres (20 ft × 39 ft)

About feet, inch in multiples

It is not possible to produce multiple [feet, inch] measurements in these ranges or multiple dimension conversions.

Words

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)

Spelling of units: 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)

Extra words: 4 planted acres

Incomplete section
{{convert|4|acre||adj=pre|planted}} → 4 planted acres (1.6 ha)

Extra adjective words: A 10-foot-long (3.0 m) corridor

{{convert|4|ft| |adj=mid|-long}} → 10-foot-long (3.0 m)

Numbers in

Fractions: 12 inch (12.7 mm)

The number to convert can be expressed in fractions:

{{convert|1/2|in|mm|1}}12 inch (12.7 mm)

Also the "⁄" punctuation is accepted (&frasl;)

{{convert|1⁄2|in|mm|1}}12 inch (12.7 mm)

Engineering notation: e6m

Common engineering notations like e6 (106) are to be put with the unit:

{{convert|9|e6m}} → 9 million metres (30,000,000 ft)

See also: {{val}}

Numbers out

to be added

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}} → 10 metres (33 ft) -- ( ) brackets are the default
{{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

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

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

Setting |disp=x extra parameter (separator) to add:

{{convert|10|m|ft|disp=x|_MyText_}} → 10 metres_MyText_33 ft -- (Take care of the spaces, use &nbsp;)

Converted measurement only: 6.2 mi

Setting |disp=out returns the calculated measurement only:

{{convert|10|km|mi|disp=out}} → 6.2 mi
{{convert|10|km|mi|disp=u2}} → 10 kilometres (6.2 mi)*

Converted number only: 6.2

Setting |disp=number returns the converted number only:

{{convert|10|km|mi|disp=number}} → 6.2

Unit only: kilometres

Setting |disp=unit returns the (input) unit only:

{{convert|10|km|mi|disp=unit}} → kilometres

Reorder (flipping) 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)
{{convert|1|mi|m}} → 1 mile (1,609.3 metres) -- (to compare; the default)

Table options

For the wikitable structure, there are two options: split over columns and make the table sortable.

Result split over columns in a table

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 both |disp=table |sortable=on to make a table column sortable. Only the first column will sort correct.
{{convert|10|m|ft|disp=table|sortable=on}} → (don't let this frighten you)

style="text-align:right;" data-sort-value="7001100000000000000"|10 |style="text-align:right;" data-sort-value="7001100000000000000"|33

m ft
10 33
20 66
30 98

Units overview

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.

Page Template:Divbox/styles.css has no content.

{{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 kilograms (220 lb)
  • {{convert|100|lb|kg}} → 100 pounds (45 kg)

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

  • {{convert|100|Mm|mm}} → 100 megametres (1.0×1011 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 (102 km; 63 mi)
  • {{convert|1|oz|ozt g gr}} → 1 ounce (0.91 ozt; 28 g; 440 gr)

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).

Abridged list of supported units
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
(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 long code "sqfoot" outputs square foot (and never feet) 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)


DENSITY
system unit unit-
code
abbrev-
iation
notes sample default
conversion
combination
output units
Metric kilogram per cubic metre kg/m3 kg/m3 1.0 kg/m3 (1.7 lb/cu yd)
  • kg/m3 lb/ft3 (kg/m3 lb/cuft)
  • kg/m3 lb/yd3 (kg/m3 lb/cuyd)
gram per cubic metre g/m3 g/m3 1.0 g/m3 (0.0017 lb/cu yd)
  • g/m3 kg/m3
  • g/m3 lb/ft3 (g/cm3 lb/cuft)
  • g/m3 lb/yd3 (g/cm3 lb/cuyd)
Imperial
&
US customary
pound per cubic foot lb/ft3 lb/cu ft 1.0 lb/cu ft (0.016 g/cm3)
  • lb/ft3 kg/m3 (lb/cu ft g/m3)
  • lb/ft3 g/m3 (lb/cu ft g/m3)
pound per cubic yard lb/yd3 lb/cu yd 1.0 lb/cu yd (0.59 kg/m3)
  • lb/yd3 kg/m3 (lb/cuyd kg/m3)
  • lb/yd3 g/m3 (lb/cuyd g/m3)


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. 1.0 cubic foot of natural gas (1.1 MJ)
latm[convert: unknown unit] latm (none) 1.0 latm[convert: unknown unit]
Latm Latm[convert: unknown unit]
impgalatm[convert: unknown unit] impgalatm (none) 1.0 impgalatm[convert: unknown unit]
USgalatm[convert: unknown unit] USgalatm
(usgalatm)
(none) 1.0 USgalatm[convert: unknown unit]
U.S.galatm
(usgalatm)
U.S.galatm[convert: unknown unit]


FORCE
(Full list)
system unit unit-
code
abbrev-
iation
notes sample default
conversion
combination
output units
SI giganewton GN GN Allows triple output units. See: full list. 1.0 GN (220,000,000 lbf)
  • GN LT-f
  • GN LTf
  • GN ST-f
  • GN STf
meganewton MN MN Allows triple output units. See: full list. 1.0 MN (220,000 lbf)
  • MN LT-f
  • MN LTf
  • MN ST-f
  • MN STf
kilonewton kN kN Allows triple output units. See: 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


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 ftin)
  • 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) 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 long code "foot" outputs foot (and never feet) 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)


MASS
(Full list)
system unit unit-
code
abbrev-
iation
notes sample default
conversion
combination
output units
SI kilogram kg kg Allows triple output units. See: 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 Allows triple output units. See: 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.
Allows triple output units. See: 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.
Allows triple output units. See: 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.
Allows triple output units. See: full list.
1.0 st (14 lb; 6.4 kg)
  • st kg
  • st lb
pound lb lb Allows triple output units. See: 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)


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 long code "foot/s" outputs foot per second (and never feet) 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


TEMPERATURE
(Full list)
system unit unit-
code
abbrev-
iation
notes sample default
conversion
combination
output units
SI K K K Allows triple output units. See: 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 actual temperatures
Example:  {{convert|5|C-change|0}} warmer
Result: 5 °C (9 °F) warmer
Fahrenheit change F-change Used for temperature intervals instead of actual temperatures
Example:  {{convert|10|F-change|0}} colder
Result: 10 °F (6 °C) colder


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


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
Allows triple output units. See: 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 long code "cufoot" outputs cubic foot (and never feet) 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
Allows triple output units. See: 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
Allows triple output units. See: 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
Allows triple output units. See: 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


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).
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
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)

Parameter list

Option Description
|abbr=comma No comma in input or output numbers.
|abbr=in Use symbol for LHS unit.
|abbr=off Use name for all units.
|abbr=on Use symbol for all units.
|abbr=out Use symbol for RHS unit (default).
|abbr=values Show only input and output numbers, not units.
|abbr=~ Show input unit symbol as well as name.
|adj=1 Unit name is singular when value is 1 or less, but not zero.
|adj=j Join value and unit name using "&nbsp;" instead of a space.
|adj=mid Same as adj=on with user-specified text after input unit.
|adj=nocomma No comma in input or output numbers.
|adj=on Unit name is singular and hyphenated.
|adj=pre User-specified text before input unit.
|adj=ri1 Round input with precision 1.
|adj=ri2 Round input with precision 2.
|adj=ri3 Round input with precision 3.
|disp=2 Display only output value and symbol/name.
|disp=b Join input/output using "(...)".
|disp=br Join input/output using "<br/>".
|disp=comma Join input/output using ",".
|disp=nocomma No comma in input or output numbers.
|disp=number Display output value only.
|disp=or Join input/output using "or".
|disp=out Same as disp=2.
|disp=output number only Same as disp=number.
|disp=output only Same as disp=2.
|disp=preunit User-specified text before input and output units.
|disp=sqbr Join input/output using "[...]".
|disp=table Output is suitable for a table cell with align="right".
|disp=tablecen Output is suitable for a table cell with align="center".
|disp=u2 Display output symbol/name (not input; not output value).
|disp=unit Display input symbol/name (not output; not input value).
|disp=unit2 Same as disp=u2.
|disp=x Join input/output using user-specified text.
|comma=5 Only use comma grouping if 5 or more digits.
|comma=gaps Use gaps, not comma, to separate groups of digits.
|comma=gaps5 Use gaps, but only if 5 or more digits.
|frac=N Display the output as fractions with N as the largest denominator.
|lk=in Link LHS unit name or symbol.
|lk=on Link all unit names or symbols (but not twice for the same unit).
|lk=out Link RHS unit name or symbol.
|order=flip Reverse order of input/output.
|sigfig=N Round output value to N significant figures (N is a positive integer).
|sortable=on Output numeric hidden sort field for use in a sortable table.
|sp=us Use U.S. spelling (like "meter" instead of default "metre").
|spell=in Spell input value in words.
|spell=In Spell input value in words with first letter uppercase.
|spell=on Spell input and output values in words.
|spell=On Spell input and output values in words with first letter uppercase.
|debug=yes Make the normally hidden sort key visible.

Examples of number grouping:

  • {{convert|1234|m|ft}} → 1,234 metres (4,049 ft)
  • {{convert|1234|m|ft|comma=5}} → 1234 metres (4049 ft)
  • {{convert|12345|m|ft|comma=5}} → 12,345 metres (40,502 ft)
  • {{convert|1234|m|ft|comma=gaps}}1234 metres (4049 ft)
  • {{convert|1234|m|ft|comma=gaps5}} → 1,234 metres (4,049 ft)*
  • {{convert|123,456,789|m|ft|comma=gaps5}} → 123,456,789 metres (405,041,959 ft)*

Examples of spelling input values:

  • {{convert|10|mi|km|spell=in}} → ten miles (16 km)
  • {{convert|10|mi|km|spell=In}} → Ten miles (16 km)
  • {{convert|1/3|mi|km|adj=on|spell=in}} → one-third-mile (0.54 km)

Deprecated options

Deprecated options should not be used. There is no guarantee that they are supported.

  • disp=slash, disp=s, disp=/ are deprecated. Use disp=or instead
  • disp=flip, adj=flip are deprecated. Use order=flip instead
  • disp=flip5 is deprecated. Use order=flip |round=5 instead
  • disp=5, near=5, is deprecated. Use round=5 instead
  • abbr=comma is deprecated. Use adj=nocomma instead

TemplateData

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

TemplateData for Convert

Converts measurements to other units.

Template parameters

ParameterDescriptionTypeStatus
value1

the value to convert

Numberoptional
from unit2

Lineoptional
to units3

Lineoptional
precision or suffix4

significant digits after decimal dot or, if negative, exponent of ten

Numberoptional
link unitslk

“on” all, “in” input, “out” output or “off” no units

Default
off
Lineoptional
abbreviationabbr

show “on” unit symbols, “off” all unit names in full words, “in” abbreviated input units, “out” abbreviated output units or “values” no unit names

Lineoptional
spellingsp

“us” US

Lineoptional
adjectiveadj

adjective form (singular unit name appended by hyphen) “on” or “mid” to put conversion at end

Lineoptional
conversiondisp

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

Default
b
Lineoptional
significant figuressigfig

number that sets the number of significant figures

Numberoptional
sort keysortable

“on” generates a hidden sort key

Lineoptional

Glossary

todo
  • Dimension:
  • Significant figures, Sigfig:

See also