Template:Convert/doc

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 ​¹⁄₁₀ 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 ¹⁄₄ 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|6|cm|in|frac=2}} → 6 centimetres (2+1⁄2 in)

{{convert|6|cm|in|frac=4}} → 6 centimetres (2+1⁄4 in)

{{convert|6|cm|in|frac=100}} → 6 centimetres (2+9⁄25 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: 1⁄2 inch (12.7 mm)

The number to convert can be expressed in fractions:

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

Also the "⁄" punctuation is accepted (⁄)

{{convert|1⁄2|in|mm|1}} → 1⁄2 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  )

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.

{{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	latm		(none)		1.0 latm
		Latm		Latm
	impgalatm	impgalatm		(none)		1.0 impgalatm
	USgalatm	USgalatm (usgalatm)		(none)		1.0 USgalatm
		U.S.galatm (usgalatm)		U.S.galatm
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 ft 3 in)	m ft m ftin
	centimetre	cm		cm	US spelling: centimeter	1.0 cm (0.39 in)	cm in
	millimetre	mm		mm	US spelling: millimeter	1.0 mm (0.039 in)	mm in
	micrometre	μm (um)		μm	US spelling: micrometer	1.0 μm (3.9×10−5 in)
	nanometre	nm		nm	US spelling: nanometer	1.0 nm (3.9×10−8 in)
non-SI metric	ångström	Å (angstrom)		Å		1.0 Å (3.9×10−9 in)
Imperial & US customary	mile	mi		mi		1.0 mi (1.6 km)	mi km
	furlong	furlong		(none)		1.0 furlong (660 ft; 200 m)
	chain	chain		(none)		1.0 chain (66 ft; 20 m)
	rod	rd		rd	For other names of this unit see the full list.	1.0 rd (17 ft; 5.0 m)
	fathom	fathom		(none)	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 " " 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

Parameter		Description	Type	Status
value	1	the value to convert	Number	optional
from unit	2		Line	optional
to units	3		Line	optional
precision or suffix	4	significant digits after decimal dot or, if negative, exponent of ten	Number	optional
link units	lk	“on” all, “in” input, “out” output or “off” no units Default off	Line	optional
abbreviation	abbr	show “on” unit symbols, “off” all unit names in full words, “in” abbreviated input units, “out” abbreviated output units or “values” no unit names	Line	optional
spelling	sp	“us” US	Line	optional
adjective	adj	adjective form (singular unit name appended by hyphen) “on” or “mid” to put conversion at end	Line	optional
conversion	disp	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	Line	optional
significant figures	sigfig	number that sets the number of significant figures	Number	optional
sort key	sortable	“on” generates a hidden sort key	Line	optional

Glossary

todo

• Dimension:
• Significant figures, Sigfig:

See also

• Template:Convert/old - pre-2014 version
• Template:Convert/units not supported
• Category:Convert error categories