This documentationhere .
Following is the master list of conversion data used by Module:Convert , although more units may temporarily be at Module:Convert/extra . Units should be discussed at Template talk:Convert .
This page is read by a script (makeunits ). The script extracts information from the wikitext, and outputs the Lua source that defines the table of units; that source can be manually copied into Module:Convert/data .
Conversion factors and physical constants [ edit ] The values for most of the conversion factors used by Template:Convert come from international and national standards documents:
The NIST document gives conversion factors correct to 7 places. Factors in bold are exact. If exact factors have more than 7 places, they are rounded and no longer exact. This convert module replaces these rounded figures with the exact figures. For example, the NIST document has 1 square mile = 2.589 988 E+06 square meters. The convert template has 1 square mile = 2,589,988.110336 square meters.
Values for the fundamental physical constants come from the NIST Reference on Constants, Units, and Uncertainty , either the 2010 or the 2014 version. The 2018 version is in preparation. While the articles on the units should be updated as the new versions come out every four years, the few more significant figures provided are probably not necessary for the way this template is used.
Definitions for additional historical measures are found in sources such as
Fenna, Donald (2002). A Dictionary of Weights, Measures, and Units . Oxford University Press. ISBN 978-0-19-107898-9 The script that reads this page ignores everything except for the wikitext in the following sections:
== Conversions == == Input multiples == == Output multiples == == Combinations == == Defaults == == Links == == Automatic per units == == Overrides == == Variable names == (used at slwiki ) In those sections, a level-3 heading (like === Length === | are processed (all other lines, and lines that start with |- or |}, are ignored). A processed line is split into fields (delimited with ||), and leading/trailing whitespace is removed from each field. Empty fields in the Conversions section are given a default value (for example, the plural of yard is formed by adding s , and the US names are also yard and yards ).
The second field in each row of the Conversions section normally specifies a unit's symbol, but it can be used for other purposes described in the following. In some cases the text in the second field can be long, and it is convenient to insert colspan="11" | before the text to avoid it wrapping in a narrow column. Any such colspan at the start of the second field is ignored.
Some unit codes are an alias for another spelling of the unit code. For example, the code ft2 is an alias for sqft, and that is indicated by entering =sqft in the Symbol column for the ft2 entry. An alias can only be entered after the primary unit has been defined (the sqft entry must precede the ft2 entry).
Normally there are no other entries on an alias line, however, the following may be used:
abbr=off to specify that using the alias displays the name of the unit, not the symboldefault = unit code to specify that the alias has a default output that is different from the primary unitlink = link text to specify that the alias has a link that is different from the primary unitmultiplier = number used as "multiplier = 100" with unit code 100km to define a unit that is 100 times the size of a kilometresp=us to specify that using the alias forces US spelling for that unitsymbol = symbol text to specify that the alias has a symbol that is different from the primary unitsymlink = link text to specify that the alias has a different link when abbreviated ("symbol link")A unit can be defined as a ratio of two other units. For example, L/km can be defined as "liters per kilometer" by entering ==L/km as the symbol for the unit. A single "=" is used with an alias to specify that a unit code is an alternative name for another unit. By contrast, if "==" is used, the unit code is defined as the first unit "per" the second.
As well as a ratio of two units, a per unit can be of the form "currency per unit". The module recognizes "$" and "£" as currency symbols and shows them appropriately. For example, the input |120|$/acre would be displayed as "$120 per acre", or "$120/acre" if abbreviated.
The definition for a per unit can be followed by the same modifiers available for an alias.
Some unit codes should not be used—if such a code is used, the template displays an error message telling the editor what unit code should be entered. For example, the code feet should not be used, and that is indicated by entering !Message in the Symbol column for the feet entry. There should be no other entries on an error line. The Message text is displayed as an error if feet is used in a conversion. The text should use the special format codes %{ and %} on each side of a unit code. The format codes are replaced with wikitext defined in Module:Convert , and which applies a consistent style to each displayed unit code.
Some units generally use their name, rather than a symbol. That is indicated by inserting ~ before the symbol. For example, the code acre has symbol ~acre which means results will use the singular name "acre", or the plural name "acres", depending on the value.
Use unit code for default [ edit ] Some units have a symbol prefixed with *, for example, the symbol given for pitch is *µm. Normally, when units are looked up in the Defaults or Links exception tables, the symbol of the unit is used. However, pitch has a symbol that conflicts with micrometre. The * prefix means that the unit code for pitch is used to look up exceptions, not the symbol.
The prefix column should be empty if SI prefixes are not used, SI for a unit that accepts SI prefixes, SI2 for a unit code that indicates a base unit squared, and SI3 for cubed. For example when defining unit code m2 put SI2 here, and for m3 say SI3. This will scale, for example, km2 to 1000 × 1000 of the base unit, m, or scale mm3 to 0.001 × 0.001 × 0.001 of the base unit m.
The name of the unit is required. The plural name is optional. If no plural name is given, it is created by appending "s" to the singular name. For example, the ft unit has name "foot" and plural name "feet"—the plural name is necessary to avoid the plural of "foot" being "foots".
The US name is optional. If no US name is given, it is the same as the normal name. The US plural name is optional—if it is missing it is created by appending "s" to the US name. When using {{ convert }} , the option |sp=us causes the US name to be displayed if a name is required for the convert.
Any %s in the name columns is replaced with the appropriate SI prefix, or is removed if SI prefixes are not appropriate (not suitable for the unit, or not used in the conversion). It is only necessary to use %s if the unit accepts prefixes, and if the prefix is not at the start of the unit's name, for example with m2 and m3.
Spelling exceptions can be handled by entering a row with the exception. For example, see ha which sets the unit name to "hectare"; without that row, the a row would cause ha to have the name "hectoare". There must be an override to document that an exception is intended.
The scale is a value or expression that is used as a factor to convert a value to its corresponding base unit. Commas may be used as a thousand separator (e.g. 1,000,000) or e notation may be used (e.g. 1e6). Fractions should be used when required for exactness (e.g. 1/12).
The Extra column is usually empty, but can contain a value or code when more than a simple Scale is required for a conversion. There are two codes used with fuel efficiency units: volume/length and length/volume. In addition, certain codes are required to indicate that the conversion procedure for the unit is built-in to the module. Any other text is used as an offset in the conversion calculation that occurs with temperature units.
The conversion procedure for some units (for example, the Mach unit of speed) are built into Module:Convert as they are too complex to be specified in a table. That is indicated by entering a code (which must be the same as used in the module) in the Extra column.
The script that reads this page contains a small amount of built-in data that does not conveniently fit into the tables below (see set_builtins in makeunits ).
A default is a code for a unit or combination that identifies the output unit or units that will be used if none is specified in the convert template. The Defaults section defines exceptions for unit codes with an SI prefix, where the default output is different from that of the base unit. Also, units using engineering notation may appear in the defaults section to define a default output for the unit.
A default may specify a unit code or an expression that tests the input value, and which produces one of two different outputs depending on that value. In the expression, v represents the input value specified in the convert template, and exclamation marks (!) are used to separate the expression into either three or four fields. For example, the following expression might be used as the default for unit in (inch):
v < 36 ! mm ! cmThe first field is a condition which evaluates to true or false . In this example, if the input value is less than 36, the default output unit is mm; otherwise, it is cm.
If present, the fourth field is appended to the result. For example, the following expression might be used for unit Ml (megalitre):
v < 28.316846592 ! e3 ! e6 ! cuftIf the condition is true, the result is e3cuft; otherwise, it is e6cuft.
A composite input unit consists of two standard units, where the second is a subdivision of the first. For example, |2|ft|6|in may be used to specify 2 feet 6 inches as the input unit in a conversion. See the Input multiples section.
Composites are defined in pairs, but any number of pairs can be used to specify an input. For example, given that ch is defined as a subdivision of mi, and that ft is a subdivision of ch, an input length could be specified as 1|mi|2|ch|3|ft. Also, with suitable pairs defined, an input length could be specified as 4|mi|3|yd|2|ft|1|in. There is no limit to the number of permitted subunits.
A multiple is a unit code that can be used as an output. For example, ftin is a multiple that results in a length being expressed in feet and inches. A multiple may have any number of components defined in the Output multiples section, where each component is a subdivision of the preceding unit.
The link column is the title of the article related to that unit. If the link is preceded with + or *, extra text will be inserted before the link, and the text shown by the link will be adjusted to omit a prefix of "US" or "U.S.", if present. For example, if a unit has the symbol "US gal" (or "U.S. gal"), and if the link is +[[Gallon]], then if the symbol is linked, it would appear as "US gal " ("US" and "gal" link to two different articles). If the link is *[[Gallon]], it would appear as "U.S. gal ".
Similarly, if the link is preceded with @, extra text will be inserted before the link, and the text shown by the link will be adjusted to omit a prefix of "imp" or "imperial", if present. For example, if a unit has the symbol "imp gal", and if the link is @[[Gallon]], then if the symbol is linked, it would appear as "imp gal " ("imp" and "gal" link two different articles).
The Links section defines exceptions for unit codes with an SI prefix, where the linked article is different from that of the base unit.
Pipe characters (|) in a table need to be encoded . For example, "[[Gallon|gal]]" should be entered as "[[Gallon|gal]]". The script that reads this page replaces each | with |.
Some unit codes match a unit with an SI prefix, and duplicate unit codes are not permitted. For example, Pa can be interpreted as "peta-are" which would prevent the pascal unit of pressure being defined after the are unit of area. However, listing Pa in the Overrides section means that the pascal unit can be defined, in which case peta-are will not be available.
Some unit codes are not intended to be used in a template, but are needed to define exceptions. For example, the code ft has link Foot (unit) , but unit psi/ft needs ft to be linked to Fracture gradient . To handle such cases, a unit code starting with "-" is used (-ft-frac for feet with a link to fracture gradient).
If needed, more dashes can be used to define additional exceptions (for example, see -Scwt and --Scwt, which are similar to Scwt but have different names).
Engineering notation [ edit ] In addition to the units defined in the data below, large scale units such as e6km (million kilometres) may be used. The following prefixes may be used, and the linked names are shown if |lk=on:
Any standard unit (not a combination, multiple, or built-in) may be used after an engineering notation prefix, including "temperature change" units, but not "temperature" units.
By convention, units written as force-distance (such as lbft or kgf.m) are torque, and those written as distance-force (such as ftlbf) are energy. See WP:MOSNUM#Unit names and the discussion , and see Pound-foot (torque) and Foot-pound (energy) .
However, some topics use traditional units that conflict with the above convention. To handle these, Module:Convert/makeunits includes a specials table that adds an "alttype" (alternate type) field to certain whitelisted units. The alttype field allows conversion between units of different type, provided each unit is whitelisted to allow the conversion.
As at December 2013, the following energy units have alttype = "torque" (the first line consists of different units, while the second line consists of aliases for units in the first line):
ftlb, ftlb-f, ftlbf, inlb, inlb-f, inlbf, inoz-f, inozf ft.lbf, ft·lb-f, ft·lbf, in.lb-f, in.lbf, in.oz-f, in.ozf, in·lb-f, in·lbf, in·oz-f, in·ozf The following torque units have alttype = "energy":
For example, the following conversion works despite the fact that Nm is torque and ftlbf is energy:
{{convert|1|Nm|ftlbf}} → 1 newton-metre (0.74 ft⋅lbf)The following tables define the standard units that are available for a conversion.
Absorbed radiation dose [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link Gy Gy 1 gray SI rad Gray (unit) rad rad 0.01 rad SI Gy Rad (unit)
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link cm/s2 cm/s2 0.01 centimetre per second squared centimetres per second squared centimeter per second squared centimeters per second squared ft/s2 Gal (unit) ft/s2 ft/s2 0.3048 foot per second squared feet per second squared m/s2 Foot per second squared g0 g 0 9.80665 standard gravity standard gravities m/s2 Standard gravity g-force g 9.80665 g g m/s2 g-force km/hs km/(h⋅s) 5/18 kilometre per hour per second kilometres per hour per second kilometer per hour per second kilometers per hour per second mph/s Acceleration km/s2 km/s2 1000 kilometre per second squared kilometres per second squared kilometer per second squared kilometers per second squared mph/s Acceleration m/s2 m/s2 1 metre per second squared metres per second squared meter per second squared meters per second squared ft/s2 Metre per second squared mph/s mph/s 0.44704 mile per hour per second miles per hour per second km/hs Acceleration km/h/s =km/hs standard gravity =g0
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link 1000sqft 1000 sq ft 92.90304 thousand square feet thousand square feet m2 Square foot a a 100 are SI sqft Hectare#Are acre ~acre 4046.8564224 acre ha Acre acre-sing =acre arpent ~arpent 3418.89 arpent ha Arpent cda cda 3930.395625 cuerda ha acre Cuerda daa daa 1000 decare km2 sqmi Decare dunam ~dunam 1000 dunam km2 sqmi Dunam dunum ~dunum 1000 dunum km2 sqmi Dunam ha ha 10,000 hectare acre Hectare hectare ~ha 10,000 hectare acre Hectare Irish acre Irish acres 6555.2385024 Irish acre ha Acre (Irish) m2 m2 1 square %smetre square %smeter SI2 sqft Square metre pondemaat pond 3674.363358816 pondemaat pondemaat m2 nl:pondemaat pyeong ~pyeong 400/121 pyeong pyeong m2 Pyeong rai rai 1600 rai rai m2 Rai (unit) rood ~rood 1011.7141056 rood sqft m2 Rood (unit) sqfoot sq ft 0.09290304 square foot square foot m2 Square foot sqft sq ft 0.09290304 square foot square feet m2 Square foot sqin sq in 0.00064516 square inch square inches cm2 Square inch sqmi sq mi 2,589,988.110336 square mile km2 Square mile sqnmi sq nmi 3,429,904 square nautical mile km2 sqmi Nautical mile sqperch ~perch 25.29285264 perch perches m2 Rod (unit)#Area and volume sqverst ~square verst 1138062.24 square verst km2 sqmi Verst sqyd sq yd 0.83612736 square yard m2 Square yard tsubo ~tsubo 400/121 tsubo tsubo m2 Japanese units of measurement#Area acres =acre are =a decare =daa foot2 =sqfoot ft2 =sqft in2 =sqin symbol = in2 km² =km2 mi2 =sqmi million acre =e6acre million acres =e6acre million hectares =e6ha m² =m2 nmi2 =sqnmi pond =pondemaat sq arp =arpent sqkm =km2 sqm =m2 square verst =sqverst verst2 =sqverst yd2 =sqyd
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link m2/ha m2 /ha 0.0001 square metre per hectare square metres per hectare square meter per hectare square meters per hectare sqft/acre Basal area sqft/acre sq ft/acre 1/43560 square foot per acre square feet per acre m2/ha Basal area
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link cent ¢ 1 cent cent Cent (currency) ¢ =cent
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link A.h A⋅h 3600 ampere hour coulomb Ampere hour coulomb C 1 coulomb SI e Coulomb e e 1.602176487e-19 elementary charge coulomb Elementary charge
CO2 per unit volume [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link kgCO2/L kg(CO2 )/L 1000 kilogram per litre kilograms per litre kilogram per liter kilograms per liter lbCO2/USgal Exhaust gas lbCO2/USgal lbCO2/US gal 0.45359237/0.003785411784 pound per US gallon pounds per US gallon kgCO2/L Exhaust gas
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link oz/lb ==oz/lb default = mg/kg mg/kg ==mg/kg default = oz/lb
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link g/dm3 g/dm3 1 gram per cubic decimetre grams per cubic decimetre gram per cubic decimeter grams per cubic decimeter kg/m3 Density g/L g/L 1 gram per litre grams per litre gram per liter grams per liter lb/cuin Density g/mL g/mL 1000 gram per millilitre grams per millilitre gram per milliliter grams per milliliter lb/cuin Density g/ml g/ml 1000 gram per millilitre grams per millilitre gram per milliliter grams per milliliter lb/cuin Density kg/dm3 kg/dm3 1000 kilogram per cubic decimetre kilograms per cubic decimetre kilogram per cubic decimeter kilograms per cubic decimeter lb/cuft Density kg/L kg/L 1000 kilogram per litre kilograms per litre kilogram per liter kilograms per liter lb/USgal Density kg/l kg/l 1000 kilogram per litre kilograms per litre kilogram per liter kilograms per liter lb/USgal Density kg/m3 kg/m3 1 kilogram per cubic metre kilograms per cubic metre kilogram per cubic meter kilograms per cubic meter lb/cuyd Density lb/cuft lb/cu ft 0.45359237/0.028316846592 pound per cubic foot pounds per cubic foot g/cm3 Density lb/cuin lb/cu in 453592.37/16.387064 pound per cubic inch pounds per cubic inch g/cm3 Density lb/cuyd lb/cu yd 0.45359237/0.764554857984 pound per cubic yard pounds per cubic yard kg/m3 Density lb/impgal lb/imp gal 0.45359237/0.00454609 pound per imperial gallon pounds per imperial gallon kg/L Density lb/in3 lb/cu in 45359237/1638.7064 pound per cubic inch pounds per cubic inch g/cm3 Density lb/U.S.gal lb/U.S. gal 589081/4916.1192 pound per U.S. gallon pounds per U.S. gallon kg/L Density lb/USbu lb/US bu 0.45359237/0.03523907016688 pound per US bushel pounds per US bushel kg/m3 Bushel lb/USgal lb/US gal 589081/4916.1192 pound per US gallon pounds per US gallon kg/L Density lbm/cuin lbm/cu in 45359237/1638.7064 pound mass per cubic inch pounds mass per cubic inch g/cm3 Density mg/L mg/L 0.001 milligram per litre milligrams per litre milligram per liter milligrams per liter lb/cuin Density oz/cuin oz/cu in 453592.37/16.387064/16 ounce per cubic inch ounces per cubic inch g/cm3 Density g/cm3 ==g/cm3 default = lb/cuin g/m3 ==g/m3 default = lb/cuyd link = Density Mg/m3 ==Mg/m3 default = lb/cuft mg/l ==mg/ll default = oz/cuin μg/dL ==μg/dL default = lb/cuin μg/l ==μg/ll default = oz/cuin lb/ft3 =lb/cuft lb/yd3 =lb/cuyd lbm/in3 =lbm/cuin mcg/dL =μg/dL oz/in3 =oz/cuin ug/dL =μg/dL ug/l =μg/l
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link B.O.T.U. B.O.T.U. 3,600,000 Board of Trade Unit MJ Kilowatt-hour bboe bboe 6,117,863,200 barrel of oil equivalent barrels of oil equivalent GJ Barrel of oil equivalent BOE BOE 6,117,863,200 barrel of oil equivalent barrels of oil equivalent GJ Barrel of oil equivalent BTU BTU 1055.05585262 British thermal unit kJ British thermal unit Btu Btu 1055.05585262 British thermal unit kJ British thermal unit BTU-39F BTU39°F 1059.67 British thermal unit (39°F) British thermal units (39°F) kJ British thermal unit Btu-39F Btu39°F 1059.67 British thermal unit (39°F) British thermal units (39°F) kJ British thermal unit BTU-59F BTU59°F 1054.804 British thermal unit (59°F) British thermal units (59°F) kJ British thermal unit Btu-59F Btu59°F 1054.804 British thermal unit (59°F) British thermal units (59°F) kJ British thermal unit BTU-60F BTU60°F 1054.68 British thermal unit (60°F) British thermal units (60°F) kJ British thermal unit Btu-60F Btu60°F 1054.68 British thermal unit (60°F) British thermal units (60°F) kJ British thermal unit BTU-63F BTU63°F 1054.6 British thermal unit (63°F) British thermal units (63°F) kJ British thermal unit Btu-63F Btu63°F 1054.6 British thermal unit (63°F) British thermal units (63°F) kJ British thermal unit BTU-ISO BTUISO 1055.056 British thermal unit (ISO) British thermal units (ISO) kJ British thermal unit Btu-ISO =BTU-ISO BTU-IT BTUIT 1055.05585262 British thermal unit (IT) British thermal units (IT) kJ British thermal unit Btu-IT BtuIT 1055.05585262 British thermal unit (IT) British thermal units (IT) kJ British thermal unit BTU-mean BTUmean 1055.87 British thermal unit (mean) British thermal units (mean) kJ British thermal unit Btu-mean Btumean 1055.87 British thermal unit (mean) British thermal units (mean) kJ British thermal unit BTU-th BTUth 1054.35026444 British thermal unit (thermochemical) British thermal units (thermochemical) kJ British thermal unit Btu-th Btuth 1054.35026444 British thermal unit (thermochemical) British thermal units (thermochemical) kJ British thermal unit Cal Cal 4184 calorie kJ Calorie cal cal 4.184 calorie J Calorie Cal-15 Cal15 4185.8 Calorie (15°C) Calories (15°C) kJ Calorie cal-15 cal15 4.1858 calorie (15°C) calories (15°C) J Calorie Cal-IT CalIT 4186.8 Calorie (International Steam Table) Calories (International Steam Table) kJ Calorie cal-IT calIT 4.1868 calorie (International Steam Table) calories (International Steam Table) J Calorie Cal-th Calth 4184 Calorie (thermochemical) Calories (thermochemical) kJ Calorie cal-th calth 4.184 calorie (thermochemical) calories (thermochemical) J Calorie CHU-IT CHUIT 1899.100534716 Celsius heat unit (International Table) Celsius heat units (International Table) kJ Conversion of units#Energy cufootnaturalgas ~cuftnaturalgas 1,055,055.85262 cubic foot of natural gas cubic foot of natural gas MJ Conversion of units#Energy cuftnaturalgas ~cuftnaturalgas 1,055,055.85262 cubic foot of natural gas cubic feet of natural gas MJ Conversion of units#Energy Eh E h 4.35974417e-18 Hartree eV Hartree erg erg 0.0000001 erg μJ Erg eV eV 1.602176487e-19 electronvolt aJ Electronvolt feV feV 1.602176487e-34 femtoelectronvolt yJ Electronvolt foe foe 1e44 foe YJ Foe (unit) ftlb ft⋅lb 1.3558179483314004 foot-pound J Foot-pound (energy) ftlb-f ft⋅lbf 1.3558179483314004 foot-pound force foot-pounds force J Foot-pound (energy) ftlbf ft⋅lbf 1.3558179483314004 foot-pound force foot-pounds force J Foot-pound (energy) ftpdl ft⋅pdl 0.0421401100938048 foot-poundal J Foot-poundal GeV GeV 1.602176487e-10 gigaelectronvolt nJ Electronvolt gTNT ~gram of TNT 4184 gram of TNT grams of TNT kJ TNT equivalent Gtoe Gtoe 4.1868e19 gigatonne of oil equivalent gigatonnes of oil equivalent EJ Tonne of oil equivalent GtonTNT ~gigaton of TNT 4.184e18 gigaton of TNT gigatons of TNT EJ TNT equivalent GtTNT ~gigatonne of TNT 4.184e18 gigatonne of TNT gigatonnes of TNT EJ TNT equivalent GW.h GW⋅h 3.6e12 gigawatt-hour TJ Kilowatt-hour GWh GWh 3.6e12 gigawatt-hour TJ Kilowatt-hour hph hp⋅h 2,684,519.537696172792 horsepower-hour kWh Horsepower inlb in⋅lb 0.1129848290276167 inch-pound mJ Foot-pound (energy) inlb-f in⋅lbf 0.1129848290276167 inch-pound force inch-pounds force mJ Foot-pound (energy) inlbf in⋅lbf 0.1129848290276167 inch-pound force inch-pounds force mJ Foot-pound (energy) inoz-f in⋅ozf 0.00706155181422604375 inch-ounce force inch-ounces force mJ Foot-pound (energy) inozf in⋅ozf 0.00706155181422604375 inch-ounce force inch-ounces force mJ Foot-pound (energy) J J 1 joule SI cal Joule kBOE kBOE 6.1178632e12 kilo barrel of oil equivalent kilo barrels of oil equivalent TJ Barrel of oil equivalent kcal kcal 4184 kilocalorie kJ Calorie kcal-15 kcal15 4185.8 kilocalorie (15°C) kilocalories (15°C) kJ Calorie kcal-IT kcalIT 4186.8 kilocalorie (International Steam Table) kilocalories (International Steam Table) kJ Calorie kcal-th kcalth 4184 kilocalorie (thermochemical) kilocalories (thermochemical) kJ Calorie kerg kerg 0.0001 kiloerg mJ Erg keV keV 1.602176487e-16 kiloelectronvolt fJ Electronvolt kgTNT ~kilogram of TNT 4,184,000 kilogram of TNT kilograms of TNT MJ TNT equivalent kt(TNT) kt 4.184e12 kilotonne kiloton TJ TNT equivalent ktoe ktoe 4.1868e13 kilotonne of oil equivalent kilotonnes of oil equivalent TJ Tonne of oil equivalent ktonTNT kt 4.184e12 kiloton of TNT kilotons of TNT TJ TNT equivalent ktTNT ~kilotonne of TNT 4.184e12 kilotonne of TNT kilotonnes of TNT TJ TNT equivalent kW.h kW⋅h 3,600,000 kilowatt-hour MJ Kilowatt-hour kWh kWh 3,600,000 kilowatt-hour MJ Kilowatt-hour Mcal Mcal 4,184,000 megacalorie MJ Calorie mcal mcal 0.004184 millicalorie mJ Calorie Mcal-15 Mcal15 4,185,800 megacalorie (15°C) megacalories (15°C) MJ Calorie mcal-15 mcal15 0.0041858 millicalorie (15°C) millicalories (15°C) mJ Calorie Mcal-IT McalIT 4,186,800 megacalorie (International Steam Table) megacalories (International Steam Table) MJ Calorie mcal-IT mcalIT 0.0041868 millicalorie (International Steam Table) millicalories (International Steam Table) mJ Calorie Mcal-th Mcalth 4,184,000 megacalorie (thermochemical) megacalories (thermochemical) MJ Calorie mcal-th mcalth 0.004184 millicalorie (thermochemical) millicalories (thermochemical) mJ Calorie Merg Merg 0.1 megaerg J Erg merg merg 0.0000000001 millierg μJ Erg MeV MeV 1.602176487e-13 megaelectronvolt pJ Electronvolt meV meV 1.602176487e-22 millielectronvolt zJ Electronvolt MMBtu MMBtu 1,055,055,852.62 million British thermal units million British thermal units GJ British thermal unit Mt(TNT) Mt 4.184e15 megatonne megaton PJ TNT equivalent Mtoe Mtoe 4.1868e16 megatonne of oil equivalent megatonnes of oil equivalent PJ Tonne of oil equivalent MtonTNT Mt 4.184e15 megaton of TNT megatons of TNT PJ TNT equivalent mtonTNT ~milliton of TNT 4,184,000 milliton of TNT millitons of TNT MJ TNT equivalent MtTNT ~megatonne of TNT 4.184e15 megatonne of TNT megatonnes of TNT PJ TNT equivalent mtTNT ~millitonne of TNT 4,184,000 millitonne of TNT millitonnes of TNT MJ TNT equivalent MW.h MW⋅h 3,600,000,000 megawatt-hour GJ Kilowatt-hour mW.h mW⋅h 3.6 milliwatt-hour J Kilowatt-hour MWh MWh 3,600,000,000 megawatt-hour GJ Kilowatt-hour mWh mWh 3.6 milliwatt-hour J Kilowatt-hour neV neV 1.602176487e-28 nanoelectronvolt yJ Electronvolt PeV PeV 0.0001602176487 petaelectronvolt mJ Electronvolt peV peV 1.602176487e-31 picoelectronvolt yJ Electronvolt PSh PSh 2647795.5 Pferdestärkenstunde kWh Pferdestärkenstunde quad quad 1.054804e18 quadrillion British thermal units quadrillion British thermal units EJ Quad (unit) Ry Ry 2.1798741e-18 rydberg eV Rydberg constant scf scf 2869.2044809344 standard cubic foot standard cubic feet kJ Standard cubic foot scfoot scf 2869.2044809344 standard cubic foot standard cubic foot kJ Standard cubic foot t(TNT) t 4,184,000,000 tonne ton GJ TNT equivalent TeV TeV 1.602176487e-7 teraelectronvolt μJ Electronvolt th th 4,186,800 thermie MJ Conversion of units#Energy thm-EC thm (EC) 105,506,000 therm (EC) therms (EC) MJ Therm thm-UK thm (UK) 105,505,585.257348 therm (UK) therms (UK) MJ Therm thm-US thm (US) thm (U.S.) 105,480,400 therm (US) therms (US) therm (U.S.) therms (U.S.) MJ Therm toe toe 41,868,000,000 tonne of oil equivalent tonnes of oil equivalent GJ Tonne of oil equivalent tonTNT ~ton of TNT 4,184,000,000 ton of TNT tons of TNT GJ TNT equivalent tTNT ~tonne of TNT 4,184,000,000 tonne of TNT tonnes of TNT GJ TNT equivalent TtonTNT ~teraton of TNT 4.184e21 teraton of TNT teratons of TNT ZJ TNT equivalent TtTNT ~teratonne of TNT 4.184e21 teratonne of TNT teratonnes of TNT ZJ TNT equivalent TW.h TW⋅h 3.6e15 terawatt-hour PJ Kilowatt-hour TWh TWh 3.6e15 terawatt-hour PJ Kilowatt-hour W.h W⋅h 3600 watt-hour kJ Kilowatt-hour Wh Wh 3600 watt-hour kJ Kilowatt-hour μerg μerg 1e-13 microerg nJ Erg μeV μeV 1.602176487e-25 microelectronvolt yJ Electronvolt μW.h μW⋅h 0.0036 microwatt-hour mJ Kilowatt-hour μWh μWh 0.0036 microwatt-hour mJ Kilowatt-hour -kW.h =kW.h link = Kilowatt hour btu =BTU Calorie =Cal ft.lbf =ftlbf ft·lbf =ftlbf g-cal-15 =cal-15 g-cal-IT =cal-IT g-cal-th =cal-th g-kcal-15 =kcal-15 g-kcal-IT =kcal-IT g-kcal-th =kcal-th g-Mcal-15 =Mcal-15 g-mcal-15 =mcal-15 g-Mcal-IT =Mcal-IT g-mcal-IT =mcal-IT g-Mcal-th =Mcal-th g-mcal-th =mcal-th GW-h =GW.h GW·h =GW.h Hartree =Eh hp.h =hph in.lb-f =inlb-f in.lbf =inlbf in.oz-f =inoz-f in.ozf =inozf kbboe =kBOE symbol = kbboe kg-cal-15 =Cal-15 kg-cal-IT =Cal-IT kg-cal-th =Cal-th kW-h =kW.h kW·h =kW.h MW-h =MW.h mW-h =mW.h MW·h =MW.h TW-h =TW.h uerg =μerg ueV =μeV uW-h =μW.h uW.h =μW.h uWh =μWh W-h =W.h
Energy per chemical amount [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link eVpar eV 1.602176565e-19 * 6.022140857e23 electronvolt SI kcal/mol Electronvolt kcal/mol ==kcal/mol default = kJ/mol link = Kilocalorie per mole kJ/mol ==kJ/mol default = kcal/mol link = Joule per mole
Energy per unit length [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link kWh/100 km kW⋅h/100 km 36 kilowatt-hour per 100 kilometres kilowatt-hours per 100 kilometres kilowatt-hour per 100 kilometers kilowatt-hours per 100 kilometers MJ/km kWh/mi Kilowatt-hour kWh/100 mi kW⋅h/100 mi 22.3694 kilowatt-hour per 100 miles kilowatt-hours per 100 miles mpge Miles per gallon gasoline equivalent MJ/100 km MJ/100 km 10 megajoule per 100 kilometres megajoules per 100 kilometres megajoule per 100 kilometers megajoules per 100 kilometers BTU/mi British thermal unit mpge mpg‑e 1609.344/(33.705*3.6e6) invert mile per gallon gasoline equivalent miles per gallon gasoline equivalent kWh/100 mi Miles per gallon gasoline equivalent BTU/mi ==BTU/mi default = v > 1525 ! M ! k ! J/km kJ/km ==kJ/km default = BTU/mi kWh/km ==-kW.h/km default = MJ/km kWh/mi kWh/mi ==-kW.h/mi default = kWh/km MJ/km MJ/km ==MJ/km default = BTU/mi mpg-e =mpge
Energy per unit mass [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link BTU/lb BTU/lb 2.326*1000 British thermal unit per pound British thermal units per pound kJ/kg British thermal unit cal/g cal/g 4184 calorie per gram calories per gram J/g Calorie per gram GJ/kg GJ/kg 1e9 gigajoule per kilogram gigajoules per kilogram ktTNT/t Specific energy J/g J/g 1000 joule per gram joules per gram kcal/g Specific energy kcal/g kcal/g 4,184,000 kilocalorie per gram kilocalories per gram kJ/g Kilocalorie per gram kJ/g kJ/g 1,000,000 kilojoule per gram kilojoules per gram kcal/g Specific energy kJ/kg kJ/kg 1000 kilojoule per kilogram kilojoules per kilogram BTU/lb Specific energy ktonTNT/MT ~kiloton of TNT per metric ton 4,184,000,000 kiloton of TNT per metric ton kilotons of TNT per metric ton GJ/kg TNT equivalent ktTNT/t ~kilotonne of TNT per tonne 4,184,000,000 kilotonne of TNT per tonne kilotonnes of TNT per tonne GJ/kg TNT equivalent MtonTNT/MT ~megaton of TNT per metric ton 4.184e12 megaton of TNT per metric ton megatons of TNT per metric ton TJ/kg TNT equivalent MtTNT/MT ~megatonne of TNT per tonne 4.184e12 megatonne of TNT per tonne megatonnes of TNT per tonne TJ/kg TNT equivalent TJ/kg TJ/kg 1e12 terajoule per kilogram terajoules per kilogram MtTNT/MT Specific energy Cal/g ==Cal/g default = kJ/g
Energy per unit volume [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link BTU/cuft ==BTU/cuft default = kJ/L Cal/12USoz(mL)serve ==Cal/-12USoz(mL)serve default = kJ/L Cal/12USoz(ml)serve ==Cal/-12USoz(ml)serve default = kJ/l Cal/12USozserve ==Cal/-12USozserve default = kJ/L Cal/USoz ==Cal/USoz default = kJ/ml kJ/L ==kJ/L default = BTU/cuft kJ/l ==kJ/ll default = BTU/cuft kJ/ml ==kJ/ml default = Cal/USoz MJ/m3 ==MJ/m3 default = BTU/cuft
Equivalent radiation dose [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link Sv Sv 1 sievert SI rem Sievert rem rem 0.01 rem SI Sv Roentgen equivalent man
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link g/km g/km 1e-6 gram per kilometre grams per kilometre gram per kilometer grams per kilometer oz/mi Exhaust gas g/mi g/mi 0.001/1609.344 gram per mile grams per mile g/km Exhaust gas gCO2/km g(CO2 )/km 1e-6 gram of CO2 per kilometre grams of CO2 per kilometre gram of CO2 per kilometer grams of CO2 per kilometer ozCO2/mi Exhaust gas gCO2/mi g(CO2 )/mi 0.001/1609.344 gram of CO2 per mile grams of CO2 per mile gCO2/km Exhaust gas kg/km kg/km 0.001 kilogram per kilometre kilograms per kilometre kilogram per kilometer kilograms per kilometer lb/mi Exhaust gas kgCO2/km kg(CO2 )/km 0.001 kilogram of CO2 per kilometre kilograms of CO2 per kilometre kilogram of CO2 per kilometer kilograms of CO2 per kilometer lbCO2/mi Exhaust gas lb/mi lb/mi 0.45359237/1609.344 pound per mile pounds per mile kg/km Exhaust gas lbCO2/mi lb(CO2 )/mi 0.45359237/1609.344 pound of CO2 per mile pounds of CO2 per mile kgCO2/km Exhaust gas oz/mi oz/mi 0.028349523125/1609.344 ounce per mile ounces per mile g/km Exhaust gas ozCO2/mi oz(CO2 )/mi 0.028349523125/1609.344 ounce of CO2 per mile ounces of CO2 per mile gCO2/km Exhaust gas
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link cuft/a cu ft/a 28316846592e-12/31,557,600 cubic foot per annum cubic feet per annum m3/a Cubic foot per second cuft/d cu ft/d 28316846592e-12/86400 cubic foot per day cubic feet per day m3/d Cubic foot per second cuft/h cu ft/h 28316846592e-12/3600 cubic foot per hour cubic feet per hour m3/h Cubic foot per second cuft/min cu ft/min 28316846592e-12/60 cubic foot per minute cubic feet per minute m3/min Cubic foot per minute cuft/s cu ft/s 28316846592e-12 cubic foot per second cubic feet per second m3/s Cubic foot per second cumi/a cu mi/a 4168181825440579584e-9/31,557,600 cubic mile per annum cubic miles per annum km3/a Cubic foot per second cuyd/h cuyd/h 0.9144^3/3600 cubic yard per hour cubic yards per hour m3/h Cubic foot per second cuyd/s cu yd/s 0.9144^3 cubic yard per second cubic yards per second m3/s Cubic yard per second Goilbbl/a Gbbl/a 22081.56874/4383 billion barrels per year billion barrels per year v * 1.58987294928 < 10 ! e6 ! e9 ! m3/a Barrel per day impgal/h imp gal/h 0.00454609/3600 imperial gallon per hour imperial gallons per hour m3/h Gallon impgal/min imp gal/min 0.00454609/60 imperial gallon per minute imperial gallons per minute m3/s Gallon impgal/s impgal/s 0.00454609 imperial gallon per second imperial gallons per second m3/s Imperial gallons per second km3/a km3 /a 1e9/31,557,600 cubic kilometre per annum cubic kilometres per annum cubic kilometer per annum cubic kilometers per annum cumi/a Cubic metre per second km3/d km3 /d 1e9/86,400 cubic kilometre per day cubic kilometres per day cubic kilometer per day cubic kilometers per day cuft/d Cubic metre per second koilbbl/a kbbl/a 1.104078437/219,150 thousand barrels per year thousand barrels per year v * 1.58987294928 < 10 ! ! e3 ! m3/a Barrel per day koilbbl/d kbbl/d 5.520392185/3000 thousand barrels per day thousand barrels per day v * 1.58987294928 < 10 ! ! e3 ! m3/d Barrel per day L/h L/h 0.001/3600 litre per hour litres per hour liter per hour liters per hour impgal/h USgal/h Cubic metre per second L/min L/min 0.001/60 litre per minute litres per minute liter per minute liters per minute impgal/min USgal/min Cubic metre per second L/s L/s 0.001 litre per second litres per second liter per second liters per second cuft/s Cubic metre per second m3/a m3 /a 1/31,557,600 cubic metre per annum cubic metres per annum cubic meter per annum cubic meters per annum cuft/a Cubic metre per second m3/d m3 /d 1/86400 cubic metre per day cubic metres per day cubic meter per day cubic meters per day cuft/d Cubic metre per second m3/h m3 /h 1/3600 cubic metre per hour cubic metres per hour cubic meter per hour cubic meters per hour cuft/h Cubic metre per second m3/min m3 /min 1/60 cubic metre per minute cubic metres per minute cubic meter per minute cubic meters per minute cuft/min Cubic metre per second m3/s m3 /s 1 cubic metre per second cubic metres per second cubic meter per second cubic meters per second cuft/s Cubic metre per second Moilbbl/a Mbbl/a 22.08156874/4383 million barrels per year million barrels per year v * 1.58987294928 < 10 ! e3 ! e6 ! m3/a Barrel per day Moilbbl/d Mbbl/d 5.520392185/3 million barrels per day million barrels per day v * 1.58987294928 < 10 ! e3 ! e6 ! m3/d Barrel per day oilbbl/a bbl/a 1.104078437/219,150,000 barrel per year barrels per year m3/a Barrel per day oilbbl/d bbl/d 5.520392185/3,000,000 barrel per day barrels per day m3/d Barrel per day Toilbbl/a Tbbl/a 22,081,568.74/4383 trillion barrels per year trillion barrels per year v * 1.58987294928 < 10 ! e9 ! e12 ! m3/a Barrel per day U.S.gal/d U.S. gal/d 0.003785411784/86400 U.S. gallon per day U.S. gallons per day m3/s +U.S. gallon per day U.S.gal/h gal/h 0.003785411784/3600 gallon per hour gallons per hour m3/h *Gallon U.S.gal/min U.S. gal/min 0.003785411784/60 U.S. gallon per minute U.S. gallons per minute m3/s Gallon USgal/a US gal/a 0.003785411784/31,557,600 US gallon per year US gallons per year m3/s US gallon per year USgal/d US gal/d 0.003785411784/86400 US gallon per day US gallons per day m3/s US gallon per day USgal/h gal/h 0.003785411784/3600 gallon per hour gallons per hour m3/h +Gallon USgal/min US gal/min 0.003785411784/60 US gallon per minute US gallons per minute m3/s Gallon USgal/s USgal/s 0.003785411784 US gallon per second US gallons per second U.S. gallon per second U.S. gallons per second m3/s US gallons per second ft3/a =cuft/a ft3/d =cuft/d ft3/h =cuft/h ft3/s =cuft/s Gcuft/a =e9cuft/a Gcuft/d =e9cuft/d kcuft/a =e3cuft/a kcuft/d =e3cuft/d kcuft/s =e3cuft/s Mcuft/a =e6cuft/a Mcuft/d =e6cuft/d Mcuft/s =e6cuft/s m³/s =m3/s Tcuft/a =e12cuft/a Tcuft/d =e12cuft/d u.s.gal/min =U.S.gal/min usgal/min =USgal/min
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link kPa/m ==kPa/-m-frac default = psi/ft psi/ft ==psi/-ft-frac default = kPa/m
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link cm/km cm/km 0.00001 centimetre per kilometre centimetres per kilometre centimeter per kilometer centimeters per kilometer ft/mi Grade (slope) ft/mi ft/mi 1/5280 foot per mile feet per mile v < 5.28 ! c ! ! m/km Grade (slope) ft/nmi ft/nmi 1.524/9260 foot per nautical mile feet per nautical mile v < 6.076 ! c ! ! m/km Grade (slope) in/ft in/ft 1/12 inch per foot inches per foot mm/m Grade (slope) in/mi in/mi 1/63360 inch per mile inches per mile v < 0.6336 ! m ! c ! m/km Grade (slope) m/km m/km 0.001 metre per kilometre metres per kilometre meter per kilometer meters per kilometer ft/mi Grade (slope) mm/km mm/km 0.000001 millimetre per kilometre millimetres per kilometre millimeter per kilometer millimeters per kilometer in/mi Grade (slope) mm/m mm/m 0.001 millimetre per metre millimetres per metre millimeter per meter millimeters per meter in/ft Grade (slope)
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link dtex dtex 1e-7 decitex decitex lb/yd Units of textile measurement#Units kg/cm kg/cm 100 kilogram per centimetre kilograms per centimetre kilogram per centimeter kilograms per centimeter lb/yd Linear density kg/m kg/m 1 kilogram per metre kilograms per metre kilogram per meter kilograms per meter lb/yd Linear density lb/ft lb/ft 4535.9237/3048 pound per foot pounds per foot kg/m Linear density lb/yd lb/yd 4535.9237/9144 pound per yard pounds per yard kg/m Linear density
Magnetic field strength [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link G G 0.0001 gauss gauss SI T Gauss (unit) T T 1 tesla SI G Tesla (unit)
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link A/m A/m 1 ampere per metre amperes per metre ampere per meter amperes per meter Oe Ampere per metre kA/m kA/m 1000 kiloampere per metre kiloamperes per metre kiloampere per meter kiloamperes per meter kOe Ampere per metre MA/m MA/m 1e6 megaampere per metre megaamperes per metre megaampere per meter megaamperes per meter kOe Ampere per metre Oe Oe 79.5774715 oersted SI kA/m Oersted
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link -Lcwt cwt 50.80234544 hundredweight hundredweight lb Hundredweight -Scwt cwt 45.359237 hundredweight hundredweight lb Hundredweight -ST ST 907.18474 short ton t Short ton carat ~carat 0.0002 carat g Carat (mass) drachm ~drachm 0.001771845195 drachm dram g Dram (unit) dram =drachm dwt dwt 0.00155517384 pennyweight oz g Pennyweight DWton ~deadweight ton 1016.0469088 deadweight ton DWtonne Deadweight tonnage DWtonne ~deadweight tonne ~deadweight metric ton 1000 deadweight tonne deadweight metric ton DWton Deadweight tonnage g g 0.001 gram SI oz Gram gr gr 0.00006479891 grain g Grain (unit) Gt Gt 1000000000000 gigatonne LT ST Tonne impgalh2o imp gal H2 O 10.00/2.2046226218488 imperial gallon of water imperial gallons of water lb kg Imperial gallon kt kt 1000000 kilotonne LT ST Tonne lb lb 0.45359237 pound kg Pound (mass) Lcwt ~Lcwt 50.80234544 long hundredweight long hundredweight lb Hundredweight long cwt long cwt 50.80234544 long hundredweight long hundredweight lb kg Hundredweight long qtr long qtr 12.70058636 long quarter lb kg Long quarter LT ~long ton 1016.0469088 long ton t Long ton lt LT 1016.0469088 long ton t Long ton metric ton ~metric ton 1000 metric ton long ton Tonne MT t 1000 metric ton LT ST Tonne Mt Mt 1000000000 megatonne LT ST Tonne oz oz 0.028349523125 ounce g Ounce ozt ozt 0.0311034768 troy ounce oz g Troy ounce pdr pdr 0.45359237 pounder kg Pound (mass) qtr qtr 12.70058636 quarter lb kg Long quarter Scwt ~Scwt 45.359237 short hundredweight short hundredweight lb Hundredweight short cwt short cwt 45.359237 short hundredweight short hundredweight lb kg Hundredweight short qtr short qtr 11.33980925 short quarter lb kg Short quarter ST ~short ton 907.18474 short ton t Short ton shtn sh tn 907.18474 short ton t Short ton shton ~ton 907.18474 ton t Ton solar mass M ☉ 1.98855e30 solar mass solar masses kg Solar mass st st 6.35029318 stone stone lb kg Stone (unit) t t 1000 tonne metric ton LT ST Tonne tonne t 1000 tonne metric ton shton Tonne troy pound ~troy pound 0.3732417216 troy pound lb kg Troy weight usgalh2o US gal H2 O 3.785411784/1.00206219713184 US gallon of water US gallons of water U.S. gallon of water U.S. gallons of water lb kg United States customary units#Fluid volume viss viss 1.632932532 viss viss kg Myanmar units of measurement#Mass billion tonne =e9t kilogram =kg kilotonne =kt lbs =lb lbt =troy pound lcwt =Lcwt long ton =LT mcg =μg million tonne =e6t scwt =Scwt short ton =ST stone =st thousand tonne =e3t tonnes =t
Mass per unit power [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link kg/kW kg/kW 0.001 kilogram per kilowatt kilograms per kilowatt lb/hp Kilowatt lb/hp lb/hp 1/(83.82*19.6133) pound per horsepower pounds per horsepower kg/kW Horsepower
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link kg/h ==kg/h default = lb/h lb/h ==lb/h default = kg/h
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link g-mol/d g‑mol/d 1/86400 gram-mole per day gram-moles per day μmol/s Mole (unit) g-mol/h g‑mol/h 1/3600 gram-mole per hour gram-moles per hour mmol/s Mole (unit) g-mol/min g‑mol/min 1/60 gram-mole per minute gram-moles per minute g-mol/s Mole (unit) g-mol/s g‑mol/s 1 gram-mole per second gram-moles per second lb-mol/min Mole (unit) gmol/d gmol/d 1/86400 gram-mole per day gram-moles per day μmol/s Mole (unit) gmol/h gmol/h 1/3600 gram-mole per hour gram-moles per hour mmol/s Mole (unit) gmol/min gmol/min 1/60 gram-mole per minute gram-moles per minute gmol/s Mole (unit) gmol/s gmol/s 1 gram-mole per second gram-moles per second lbmol/min Mole (unit) kmol/d kmol/d 5/432 kilomole per day kilomoles per day mmol/s Mole (unit) kmol/h kmol/h 5/18 kilomole per hour kilomoles per hour mol/s Mole (unit) kmol/min kmol/min 50/3 kilomole per minute kilomoles per minute mol/s Kilomole (unit) kmol/s kmol/s 1000 kilomole per second kilomoles per second lb-mol/s Mole (unit) lb-mol/d lb‑mol/d 4.5359237/864 pound-mole per day pound-moles per day mmol/s Pound-mole lb-mol/h lb‑mol/h 4.5359237/36 pound-mole per hour pound-moles per hour mol/s Pound-mole lb-mol/min lb‑mol/min 45.359237/6 pound-mole per minute pound-moles per minute mol/s Pound-mole lb-mol/s lb‑mol/s 453.59237 pound-mole per second pound-moles per second kmol/s Pound-mole lbmol/d lbmol/d 4.5359237/864 pound-mole per day pound-moles per day mmol/s Pound-mole lbmol/h lbmol/h 4.5359237/36 pound-mole per hour pound-moles per hour mol/s Pound-mole lbmol/min lbmol/min 45.359237/6 pound-mole per minute pound-moles per minute mol/s Pound-mole lbmol/s lbmol/s 453.59237 pound-mole per second pound-moles per second kmol/s Pound-mole mmol/s mmol/s 0.001 millimole per second millimoles per second lb-mol/d Mole (unit) mol/d mol/d 1/86400 mole per day moles per day μmol/s Mole (unit) mol/h mol/h 1/3600 mole per hour moles per hour mmol/s Mole (unit) mol/min mol/min 1/60 mole per minute moles per minute mol/s Mole (unit) mol/s mol/s 1 mole per second moles per second lb-mol/min Mole (unit) μmol/s μmol/s 0.000001 micromole per second micromoles per second lb-mol/d Mole (unit) umol/s =μmol/s
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link /acre /acre 1/4046.8564224 per acre per acre /ha Acre /ha /ha 100e-6 per hectare per hectare /acre Hectare /sqcm /cm2 1e4 per square centimetre per square centimetre per square centimeter per square centimeter /sqin Square centimetre /sqin /in2 1/0.00064516 per square inch per square inch /sqcm Square inch /sqkm /km2 1e-6 per square kilometre per square kilometre per square kilometer per square kilometer /sqmi Square kilometre /sqmi /sq mi 1/2,589,988.110336 per square mile per square mile /sqkm Square mile PD/acre /acre 1/4046.8564224 inhabitant per acre inhabitants per acre PD/ha Acre PD/ha /ha 100e-6 inhabitant per hectare inhabitants per hectare PD/acre Hectare PD/sqkm /km2 1e-6 inhabitant per square kilometre inhabitants per square kilometre inhabitant per square kilometer inhabitants per square kilometer PD/sqmi Square kilometre PD/sqmi /sq mi 1/2,589,988.110336 inhabitant per square mile inhabitants per square mile PD/sqkm Square mile /cm2 =/sqcm /in2 =/sqin /km2 =/sqkm pd/acre =PD/acre pd/ha =PD/ha PD/km2 =PD/sqkm pd/km2 =PD/sqkm PD/km² =PD/sqkm pd/sqkm =PD/sqkm pd/sqmi =PD/sqmi
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link /l /l 1000 per litre per litre per liter per liter /usgal Litre /L /L 1000 per litre per litre per liter per liter /usgal Litre /USgal /gal 264.172052 per gallon per gallon /L *US gallon /usgal =/USgal
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link bhp bhp 745.69987158227022 brake horsepower brake horsepower kW Horsepower#Brake horsepower Cal/d Cal/d 4184/(3600*24) large calorie per day large calories per day kJ/d Calorie Cal/h Cal/h 4184/3600 large calorie per hour large calories per hour kJ/h Calorie cal/h cal/h 4.184/3600 calorie per hour calories per hour W Calorie CV CV 735.49875 metric horsepower metric horsepower kW Metric horsepower hk hk 735.49875 metric horsepower metric horsepower kW Metric horsepower hp hp 745.69987158227022 horsepower horsepower kW Horsepower hp-electric hp 746 electric horsepower electric horsepower kW Horsepower#Electrical horsepower hp-electrical hp 746 electrical horsepower electrical horsepower kW Horsepower#Electrical horsepower hp-metric hp 735.49875 metric horsepower metric horsepower kW Metric horsepower ihp ihp 745.69987158227022 indicated horsepower indicated horsepower kW Horsepower#Indicated horsepower kcal/h kcal/h 4184/3600 kilocalorie per hour kilocalories per hour kW Calorie kJ/d kJ/d 1000/(3600*24) kilojoule per day kilojoules per day Cal/d Kilojoule kJ/h kJ/h 1000/3600 kilojoule per hour kilojoules per hour W Kilojoule PS PS 735.49875 metric horsepower metric horsepower kW Metric horsepower shp shp 745.69987158227022 shaft horsepower shaft horsepower kW Horsepower#Shaft horsepower W W 1 watt SI hp Watt BTU/h ==BTU/h default = W Btu/h ==Btu/h default = W BHP =bhp btu/h =BTU/h HP =hp Hp =hp hp-mechanical =hp IHP =ihp SHP =shp whp =hp
Power per unit mass [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link hp/lb hp/lb 1643.986806 horsepower per pound horsepower per pound kW/kg Power-to-weight ratio hp/LT hp/LT 5.13745876875/7 horsepower per long ton horsepower per long ton kW/t Power-to-weight ratio hp/ST hp/ST 0.821993403 horsepower per short ton horsepower per short ton kW/t Power-to-weight ratio hp/t hp/t 0.74569987158227022 horsepower per tonne horsepower per tonne kW/t Power-to-weight ratio kW/kg kW/kg 1000 kilowatt per kilogram kilowatts per kilogram hp/lb Power-to-weight ratio kW/t kW/t 1 kilowatt per tonne kilowatts per tonne PS/t Power-to-weight ratio PS/t PS/t 0.73549875 metric horsepower per tonne metric horsepower per tonne kW/t Power-to-weight ratio shp/lb shp/lb 1643.986806 shaft horsepower per pound shaft horsepower per pound kW/kg Power-to-weight ratio hp/tonne =hp/t default = kW/tonne symbol = hp/tonne kW/tonne =kW/t symbol = kW/tonne
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link -lb/in2 lb/in2 444,822,161.52605/64,516 pound per square inch pounds per square inch kPa kgf/cm2 Pound per square inch atm atm 101,325 standard atmosphere kPa Atmosphere (unit) Ba Ba 0.1 barye Pa Barye bar bar 100,000 bar kPa Bar (unit) dbar dbar 10,000 decibar kPa Bar (unit) inHg inHg 3386.388640341 inch of mercury inches of mercury kPa Inch of mercury kBa kBa 100 kilobarye hPa Barye kg-f/cm2 kgf /cm2 98,066.5 kilogram-force per square centimetre kilograms-force per square centimetre kilogram-force per square centimeter kilograms-force per square centimeter psi Kilogram-force kg/cm2 kg/cm2 98,066.5 kilogram per square centimetre kilograms per square centimetre kilogram per square centimeter kilograms per square centimeter psi Kilogram-force kgf/cm2 kgf/cm2 98,066.5 kilogram-force per square centimetre kilograms-force per square centimetre kilogram-force per square centimeter kilograms-force per square centimeter psi Kilogram-force ksi ksi 444,822,161,526.05/64,516 kilopound per square inch kilopounds per square inch MPa Pound per square inch lbf/in2 lbf/in2 444,822,161.52605/64,516 pound-force per square inch pounds-force per square inch kPa kgf/cm2 Pound-force per square inch mb mb 100 millibar hPa Bar (unit) mbar mbar 100 millibar hPa Bar (unit) mmHg mmHg 133.322387415 millimetre of mercury millimetres of mercury millimeter of mercury millimeters of mercury kPa Millimetre of mercury Pa Pa 1 pascal SI psi Pascal (unit) psf psf 444,822,161.52605/9,290,304 pound per square foot pounds per square foot kPa Pound per square inch psi psi 444,822,161.52605/64,516 pound per square inch pounds per square inch kPa Pound per square inch Torr Torr 20,265/152 torr kPa Torr N/cm2 ==N/cm2 default = psi N/m2 ==N/m2 default = psi g/cm2 ==g/cm2 default = lb/sqft multiplier = 9.80665 g/m2 ==g/m2 default = lb/sqft multiplier = 9.80665 kg/ha ==kg/ha default = lb/acre multiplier = 9.80665 kg/m2 ==kg/m2 default = lb/sqft multiplier = 9.80665 lb/1000sqft ==lb/1000sqft default = g/m2 multiplier = 9.80665 lb/acre ==lb/acre default = kg/ha multiplier = 9.80665 lb/sqft ==lb/sqft default = kg/m2 multiplier = 9.80665 lb/sqyd ==lb/sqyd default = kg/m2 multiplier = 9.80665 LT/acre ==LT/acre default = t/ha multiplier = 9.80665 MT/ha ==MT/ha default = LT/acre ST/acre multiplier = 9.80665 oz/sqft ==oz/sqft default = g/m2 multiplier = 9.80665 oz/sqyd ==oz/sqyd default = g/m2 multiplier = 9.80665 ST/acre ==ST/acre default = t/ha multiplier = 9.80665 t/ha ==t/ha default = LT/acre ST/acre multiplier = 9.80665 tonne/acre ==tonne/acre default = tonne/ha multiplier = 9.80665 tonne/ha ==tonne/ha default = tonne/acre multiplier = 9.80665 kgfpsqcm =kgf/cm2 kgpsqcm =kg/cm2 kN/m2 =kPa lb/in2 =lbf/in2 torr =Torr
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link cm/h cm/h 0.01/60/60 centimetre per hour centimetres per hour centimeter per hour centimeters per hour in/h Metre per second cm/s cm/s 0.01 centimetre per second centimetres per second centimeter per second centimeters per second in/s Metre per second cm/year cm/year 0.01/365.2425/24/60/60 centimetre per year centimetres per year centimeter per year centimeters per year in/year Orders of magnitude (speed) foot/s ft/s 0.3048 foot per second foot per second m/s Foot per second ft/min ft/min 0.00508 foot per minute feet per minute m/min Feet per second ft/s ft/s 0.3048 foot per second feet per second m/s Feet per second furlong per fortnight ~furlong per fortnight 1.397/8,400 furlong per fortnight furlongs per fortnight km/h mph FFF system in/h in/h 0.0254/60/60 inch per hour inches per hour cm/h Inch in/s in/s 0.0254 inch per second inches per second cm/s Inch in/year in/year 0.0254/365.2425/24/60/60 inch per year inches per year cm/year Orders of magnitude (speed) isp s 9.80665 second km/s Specific impulse km/d km/d 1.1574074074074074e-2 kilometre per day kilometres per day kilometer per day kilometers per day mi/d Orders of magnitude (speed) km/h km/h 10/36 kilometre per hour kilometres per hour kilometer per hour kilometers per hour mph Kilometres per hour km/s km/s 1000 kilometre per second kilometres per second kilometer per second kilometers per second mi/s Metre per second kn kn 4.63/9 knot km/h mph Knot (unit) kNs/kg kN‑s/kg 1000 kN‑s/kg kN‑s/kg isp Specific impulse m/min m/min 1/60 metre per minute metres per minute meter per minute meters per minute ft/min Metre per second m/s m/s 1 metre per second metres per second meter per second meters per second ft/s Metre per second Mach Mach 0 mach Mach Mach km/h mph Mach number mi/d mi/d 1.8626666666666667e-2 mile per day miles per day km/d Orders of magnitude (speed) mi/s mi/s 1609.344 mile per second miles per second km/s Mile mm/h mm/h 0.001/60/60 millimetre per hour millimetres per hour millimeter per hour millimeters per hour in/h Metre per second mph mph 0.44704 mile per hour miles per hour km/h Miles per hour Ns/kg N‑s/kg 1 N‑s/kg N‑s/kg isp Specific impulse si tsfc g/(kN⋅s) 1/101972/9.80665 invert g/(kN⋅s) g/(kN⋅s) tsfc Thrust specific fuel consumption tsfc lb/(lbf⋅h) 1/9.80665/3600 invert lb/(lbf⋅h) lb/(lbf⋅h) si tsfc Thrust specific fuel consumption cm/y =cm/year cm/yr =cm/year in/y =in/year in/yr =in/year knot =kn knots =kn kph =km/h mi/h =mph mm/s ==mm/s default = in/s link = Metre per second
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link C °C 1 -273.15 degree Celsius degrees Celsius F Celsius F °F 5/9 32-273.15*(9/5) degree Fahrenheit degrees Fahrenheit C Fahrenheit K K 1 0 kelvin SI C F Kelvin keVT keV 11.604505e6 0 kiloelectronvolt MK Electronvolt R °R 5/9 0 degree Rankine degrees Rankine K F C Rankine scale Celsius =C °C =C °F =F °R =R
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link C-change °C 1 degree Celsius change degrees Celsius change F-change Celsius F-change °F 5/9 degree Fahrenheit change degrees Fahrenheit change C-change Fahrenheit K-change K 1 kelvin change kelvins change F-change Kelvin °C-change =C-change °F-change =F-change
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link century ha 3,155,760,000 century centuries Gs Century d d 86,400 day ks Day decade daa 315,576,000 decade Ms Decade dog year dog yr 7 * 31,557,600 dog year years List of unusual units of measurement#Dog year fortnight ~fortnight 1,209,600 fortnight week Fortnight h h 3600 hour ks Hour long billion year Ta 31,557,600,000,000,000,000 billion years billion years Es Annum millennium ka 31,557,600,000 millennium millennia Gs Millennium milliard year Ga 31,557,600,000,000,000 milliard years milliard years Ps Annum million year Ma 31,557,600,000,000 million years million years Ts Annum min min 60 minute s Minute month ~month 2,629,800 month Ms Month months mo 2,629,800 month year Month s s 1 second SI v < 7200 ! min ! h Second short billion year Ga 31,557,600,000,000,000 billion years billion years Ps Annum short trillion year Ta 31,557,600,000,000,000,000 trillion years trillion years Es Annum thousand million year Ga 31,557,600,000,000,000 thousand million years thousand million years Ps Annum wk ~week 604,800 week Ms Week year a 31,557,600 year Ms Annum years yr 31,557,600 year Ms Annum byr =short billion year day =d days =d dog yr =dog year Gyr =thousand million year hour =h hours =h kMyr =thousand million year kmyr =thousand million year kyr =millennium long byr =long billion year minute =min minutes =min mth =month Myr =million year myr =million year sec =s second =s seconds =s tmyr =thousand million year tryr =short trillion year tyr =millennium week =wk weeks =wk yr =year
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link kg.m kg⋅m 9.80665 kilogram metre kilogram meter Nm lbft Kilogram metre (torque) kgf.m kgf⋅m 9.80665 kilogram force-metre kilogram force-meter Nm lbfft Kilogram metre (torque) kgm kg⋅m 9.80665 kilogram metre kilogram meter Nm lbfft Kilogram metre (torque) kpm kp⋅m 9.80665 kilopond metre kilopond meter Nm lbft Kilogram metre (torque) lb-fft ft⋅lbf 1.3558179483314004 pound force-foot pound force-feet Nm Pound-foot (torque) lb.ft lb⋅ft 1.3558179483314004 pound force-foot pound force-feet Nm Pound-foot (torque) lb.in lb⋅in 0.1129848290276167 pound force-inch mN.m Pound-foot (torque) lbfft lbf⋅ft 1.3558179483314004 pound force-foot pound force-feet Nm Pound-foot (torque) lbft lb⋅ft 1.3558179483314004 pound-foot pound-feet Nm Pound-foot (torque) m.kg-f m⋅kgf 9.80665 metre kilogram-force metre kilograms-force meter kilogram-force meter kilograms-force Nm lbfft Kilogram metre (torque) m.kgf m⋅kgf 9.80665 metre kilogram-force metre kilograms-force meter kilogram-force meter kilograms-force Nm lbfft Kilogram metre (torque) mN.m mN⋅m 0.001 millinewton-metre millinewton-meter lb.in Newton-metre Nm N⋅m 1 newton-metre newton-meter SI lbfft Newton-metre kN/m ==kN/-m-stiff default = lbf/in lbf/in ==lbf/-in-stiff default = kN/m lb-f.ft =lb-fft lbf.ft =lbfft lbf·ft =lbfft lb·ft =lb.ft mkg-f =m.kg-f mkgf =m.kgf N.m =Nm N·m =Nm
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link ton-mile ~ton-mile 0.90718474*1.609344 ton-mile tkm Ton-mile tkm tkm 1 tonne-kilometre tonne-kilometer ton-mile Tonne-kilometre
Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link -12USoz(mL)serve 12 US fl oz (355 mL) serving 12 U.S. fl oz (355 mL) serving 12*0.0000295735295625 12 US fl oz (355 mL) serving 12 U.S. fl oz (355 mL) serving mL Beverage can#Standard sizes -12USoz(ml)serve 12 US fl oz (355 ml) serving 12 U.S. fl oz (355 ml) serving 12*0.0000295735295625 12 US fl oz (355 ml) serving 12 U.S. fl oz (355 ml) serving ml Beverage can#Standard sizes -12USozserve 12 US fl oz serving 12 U.S. fl oz serving 12*0.0000295735295625 12 US fl oz serving 12 U.S. fl oz serving mL Beverage can#Standard sizes acre-foot acre⋅ft 1233.48183754752 acre-foot acre-foot m3 Acre-foot acre-ft acre⋅ft 1233.48183754752 acre-foot acre-feet m3 Acre-foot AUtbsp AU tbsp 0.000020 Australian tablespoon ml Australian tablespoon Bcuft billion cu ft 28316846.592 billion cubic foot billion cubic feet Gl Cubic foot bdft bd ft 0.0023597372167 board foot board feet m3 Board foot board feet ~board foot 0.0023597372167 board foot board feet m3 Board foot board foot ~board foot 0.0023597372167 board foot board foot m3 Board foot cc cc 0.000001 cubic centimetre cubic centimeter cuin Cubic centimetre CID cu in 0.000016387064 cubic inch cubic inches cc Cubic inch#Engine displacement cord cord 3.624556363776 cord m3 Cord (unit) cufoot cu ft 0.028316846592 cubic foot cubic foot m3 Cubic foot cuft cu ft 0.028316846592 cubic foot cubic feet m3 Cubic foot cuin cu in 0.000016387064 cubic inch cubic inches cm3 Cubic inch cumi cu mi 4,168,181,825.440579584 cubic mile km3 Cubic mile cuyd cu yd 0.764554857984 cubic yard m3 Cubic yard firkin ~firkin 0.04091481 firkin L impgal USgal Firkin (unit) foot3 =cufoot Goilbbl Gbbl 158987294.928 billion barrels billion barrels v * 1.58987294928 < 10 ! e6 ! e9 ! m3 Barrel (unit)#Oil barrel gr water gr H2 O 0.00000006479891 grains water grains water cm3 Grain (unit) grt grt 2.8316846592 gross register ton m3 Gross register tonnage impbbl imp bbl 0.16365924 imperial barrel L impgal USgal Barrel (unit) impbsh imp bsh 0.03636872 imperial bushel L impgal USdrygal Imperial bushel impbu imp bu 0.03636872 imperial bushel m3 Imperial bushel impgal imp gal 0.00454609 imperial gallon L USgal Imperial gallon impgi gi 0.0001420653125 gill ml USoz Gill (unit) impkenning kenning 0.01818436 imperial kenning L USdrygal Kenning (unit) impoz imp fl oz 0.0000284130625 imperial fluid ounce ml USoz Imperial fluid ounce imppk pk 0.00909218 imperial peck L USdrygal Peck imppt imp pt 0.00056826125 imperial pint L Imperial pint impqt imp qt 0.0011365225 imperial quart ml USoz @Imperial quart kilderkin ~kilderkin 0.08182962 kilderkin L impgal USgal Kilderkin koilbbl kbbl 158.987294928 thousand barrels thousand barrels v * 1.58987294928 < 10 ! ! e3 ! m3 Barrel (unit)#Oil barrel L L 0.001 litre liter SI impgal USgal Litre l l 0.001 litre liter SI impgal USgal Litre ll l 0.001 litre liter impgal USgal Litre m3 m3 1 cubic %smetre cubic %smeter SI3 cuft Cubic metre Mbbl Mbbl 158.987294928 thousand barrels thousand barrels v * 1.58987294928 < 10 ! e3 ! ! m3 Barrel (unit)#Oil barrel MMoilbbl MMbbl 158987.294928 million barrels million barrels v * 1.58987294928 < 10 ! e3 ! e6 ! m3 Barrel (unit)#Oil barrel Moilbbl Mbbl 158987.294928 million barrels million barrels v * 1.58987294928 < 10 ! e3 ! e6 ! m3 Barrel (unit)#Oil barrel MTON MTON 0.028316846592*40 measurement ton m3 Measurement ton MUSgal million US gal million U.S. gal 3785.411784 million US gallons million US gallons million U.S. gallons million U.S. gallons Ml US gallon oilbbl bbl 0.158987294928 barrel m3 Barrel (unit)#Oil barrel stere ~stere 1 stere cuft Stere Toilbbl Tbbl 158987294928 trillion barrels trillion barrels v * 1.58987294928 < 10 ! e9 ! e12 ! m3 Barrel (unit)#Oil barrel USbbl US bbl U.S. bbl 0.119240471196 US barrel U.S. barrel L USgal impgal Barrel (unit) USbeerbbl US bbl U.S. bbl 0.117347765304 US beer barrel U.S. beer barrel L USgal impgal Barrel (unit) USbsh US bsh U.S. bsh 0.03523907016688 US bushel U.S. bushel L USdrygal impgal Bushel USbu US bu U.S. bu 0.03523907016688 US bushel U.S. bushel L USdrygal impgal Bushel USdrybbl US dry bbl U.S. dry bbl 0.11562819898508 US dry barrel U.S. dry barrel m3 Barrel (unit) USdrygal US dry gal U.S. dry gal 0.00440488377086 US dry gallon U.S. dry gallon L Gallon USdrypt US dry pt U.S. dry pt 0.0005506104713575 US dry pint U.S. dry pint ml Pint USdryqt US dry qt U.S. dry qt 0.001101220942715 US dry quart U.S. dry quart ml Quart USflgal US fl gal U.S. fl gal 0.003785411784 US gallon U.S. gallon L impgal Gallon USgal US gal U.S. gal 0.003785411784 US gallon U.S. gallon L impgal US gallon USgi gi 0.0001182941183 gill ml impoz Gill (unit) USkenning US kenning U.S. kenning 0.01761953508344 US kenning U.S. kenning L impgal Kenning (unit) USmin US min U.S. min 0.000000061611519921875 US minim U.S. minim ml Minim (unit) USoz US fl oz U.S. fl oz 0.0000295735295625 US fluid ounce U.S. fluid ounce ml US fluid ounce USpk US pk U.S. pk 0.00880976754172 US peck U.S. peck L impgal Peck USpt US pt U.S. pt 0.000473176473 US pint U.S. pint L imppt Pint USqt US qt U.S. qt 0.000946352946 US quart U.S. quart ml +Quart USquart US qt U.S. qt 0.000946352946 US quart U.S. quart ml impoz Quart UStbsp US tbsp U.S. tbsp 0.000946352946/64 US tablespoon U.S. tablespoon ml US tablespoon winecase ~case 0.009 case L Case (goods) *U.S.drygal =USdrygal sp=us link = *Gallon *U.S.gal =USgal sp=us link = *US gallon +USdrygal =USdrygal link = +Gallon +usfloz =USoz link = +Fluid ounce +USgal =USgal link = +US gallon +USoz =USoz link = +US fluid ounce @impgal =impgal link = @Gallon acre feet =acre-ft acre foot =acre-foot acre ft =acre-ft acre-feet =acre-ft acre.foot =acre-foot acre.ft =acre-ft acre·ft =acre-ft bushels =USbsh cid =CID ft3 =cuft gal =USgal gallon !Use %{USgal%} for US gallons or %{impgal%} for imperial gallons (not %{gallon%}) gallons !Use %{USgal%} for US gallons or %{impgal%} for imperial gallons (not %{gallons%}) Gcuft =e9cuft impfloz =impoz Impgal =impgal in3 =cuin symbol = in3 hm³ =hm3 kcuft =e3cuft kcum =e3m3 km³ =km3 liter =L sp=us liters =L sp=us litre =L litres =L Mcuft =e6cuft Mcum =e6m3 Mft3 =e6cuft mi3 =cumi m³ =m3 Pcuft =e15cuft pt !Use %{USpt%} for US pints or %{imppt%} for imperial pints (not %{pt%}) qt !Use %{USqt%} for US quarts or %{impqt%} for imperial quarts (not %{qt%}) Tcuft =e12cuft Tft3 =e12cuft U.S.bbl =USbbl sp=us default = L U.S.gal impgal U.S.beerbbl =USbeerbbl sp=us default = L U.S.gal impgal U.S.bsh =USbsh sp=us default = L U.S.drygal impgal U.S.bu =USbu sp=us default = L U.S.drygal impgal U.S.drybbl =USdrybbl sp=us U.S.drygal =USdrygal sp=us U.S.drypt =USdrypt sp=us U.S.dryqt =USdryqt sp=us U.S.flgal =USflgal sp=us U.S.floz =USoz sp=us U.S.gal =USgal sp=us link = U.S. gallon u.s.gal =USgal sp=us link = U.S. gallon U.S.gi =USgi sp=us U.S.kenning =USkenning sp=us U.S.oz =USoz sp=us U.S.pk =USpk sp=us U.S.pt =USpt sp=us U.S.qt =USqt sp=us default = L impqt link = *Quart usbbl =USbbl usbeerbbl =USbeerbbl usbsh =USbsh usbu =USbu usdrybbl =USdrybbl usdrygal =USdrygal usdrypt =USdrypt usdryqt =USdryqt USfloz =USoz usfloz =USoz USGAL =USgal usgal =USgal usgi =USgi uskenning =USkenning usoz =USoz uspk =USpk uspt =USpt usqt =USqt yd3 =cuyd
Volume per unit area [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link cuft/sqmi ==cuft/sqmi default = m3/km2 m3/ha m3 /ha 0.0001 cubic metre per hectare cubic metres per hectare cubic meter per hectare cubic meters per hectare USbu/acre Hectare m3/km2 ==m3/km2 default = cuft/sqmi U.S.gal/acre ==U.S.gal/acre default = m3/km2 USbu/acre ~US bushel per acre 0.03523907016688/4046.8564224 US bushel per acre US bushels per acre m3/ha Bushel USgal/acre ==USgal/acre default = m3/km2
Volume per unit length [ edit ] Unit code Symbol US symbol Scale Extra Name Plural name US name US plural name Prefix Default Link cuyd/mi ==cuyd/mi default = m3/km m3/km ==m3/km default = cuyd/mi
The following tables define composite input units consisting of multiple unit codes. A composite must consist of two unit codes where the second is a subdivision of the first. In addition, a default output must be specified. Optionally, an alternate unit code or name can be specified. An alternate unit must have the same scale as that of the subdivision, but may have a different name or symbol.
If both an alternate unit and name are provided, the unit will be used when the input consists of only two components, and the alternate name will be used with three or more (generally, the alternate name would be shorter than the unit's standard name or symbol, and that may be desirable when three or more units make up an input composite).
If an alternate name is used, it replaces the unit's symbol and name and plural name. In other words, the same alternate name applies regardless of whether the unit is abbreviated, and regardless of the number of units.
If the unit yd allows ft as a subdivision, and ft allows in, then the input to a conversion can use all three units (for example, {{convert|1|yd|2|ft|3|in}} which specifies the input as 1 yard, 2 feet, 3 inches). There is no limit to the number of units that can be used in an input multiple.
To simplify processing by the script which extracts data from this wikitext, a unit code is required in the first column; that unit code is not used. This section is read after all units and combinations are defined, so the unit codes may refer to items defined anywhere on this page.
Composite code Unit code Unit code Default Alternate Name _acre_rood acre rood ha _acre_sqperch acre sqperch ha _rood_sqperch rood sqperch m2
Composite code Unit code Unit code Default Alternate Name _ch_ft ch ft m _ch_yd ch yd m _chain_ft chain ft m _chain_yd chain yd m _foot_in foot in m _ft_in ft in m _mi_ch mi ch km _mi_chlk mi chlk km _mi_chain mi chain km _mi_chainlk mi chainlk km _mi_ft mi ft km _mi_furlong mi furlong km _mi_yd mi yd km _smi_chain smi chain km _yd_ft yd ft m
Composite code Unit code Unit code Default Alternate Name _lb_oz lb oz kg _Lcwt_qtr Lcwt qtr kg _Lcwt_st Lcwt st kg _long_cwt_qtr long cwt qtr kg _LT_Lcwt LT Lcwt t -Lcwt _lt_Lcwt lt Lcwt t -Lcwt _qtr_lb qtr lb kg _st_lb st lb kg lb _ST_Scwt ST Scwt t -Scwt
The following tables define the "multiple" unit codes that can be used for an output unit. Using a multiple code for the output means that the conversion result contains multiple components (for example, a length expressed in yards, feet, inches).
Multiple code Unit code Unit code Unit code Unit code mich mi ch michlk mi chlk michainlk mi chainlk miyd mi yd miydftin mi yd ft in mift mi ft ydftin yd ft in ydft yd ft ftin ft in footin foot in handin hand in
Multiple code Unit code Unit code Unit code Unit code lboz lb oz stlb st lb stlboz st lb oz st and lb st lb
The following tables list predefined "combination" unit codes that can be used for an output unit. Using a combination code for the output means that the input value is converted to more than one unit. In addition to the combinations listed here, units may be combined by separating unit codes with a space or plus character.
Combination code Unit code Unit code Unit code Unit code GN LTf GN -LTf GN LTf STf GN -LTf -STf GN STf GN -STf GN STf LTf GN -STf -LTf kN LTf kN -LTf kN LTf STf kN -LTf -STf kN STf kN -STf kN STf LTf kN -STf -LTf LTf STf -LTf -STf MN LTf MN -LTf MN LTf STf MN -LTf -STf MN STf MN -STf MN STf LTf MN -STf -LTf STf LTf -STf -LTf
Combination code Unit code Unit code Unit code Unit code L/100 km mpgimp L/100 km mpgimp l/100 km mpgimp l/100 km mpgimp L/100 km mpgUS L/100 km mpgus L/100 km mpgus L/100 km mpgus l/100 km mpgus l/100 km mpgus mpgimp L/100 km mpgimp L/100 km
Combination code Unit code Unit code Unit code Unit code LT ST t lt -ST t LT t ST lt t -ST ST LT t -ST lt t ST t LT -ST t lt t LT ST t lt -ST ton LT ST
Combination code Unit code Unit code Unit code Unit code kPa kg/cm2 kPa kgf/cm2 kPa lb/in2 kPa -lb/in2
Combination code Unit code Unit code Unit code Unit code floz impoz USoz
The following tables define default outputs for unit codes that use an SI prefix or an engineering notation prefix, where the default output is different from that of the base unit.
Unit code Default output cm2 sqin dm2 sqin e3acre km2 e3m2 e6sqft e6acre km2 e6ha e6acre e6km2 e6sqmi e6m2 e6sqft e6sqft v * 9.290304 < 100 ! e3 ! e6 ! m2 e6sqmi e6km2 hm2 acre km2 sqmi mm2 sqin
Unit code Default output aJ eV e3BTU MJ e6BTU GJ EJ kWh fJ keV GJ kWh MJ kWh PJ kWh pJ MeV TJ kWh YJ kWh yJ μeV ZJ kWh zJ meV
Unit code Default output e12cuft/a v * 2.8316846592 < 100 ! e9 ! e12 ! m3/a e12cuft/d v * 2.8316846592 < 100 ! e9 ! e12 ! m3/d e12m3/a Tcuft/a e12m3/d Tcuft/d e3cuft/a v * 2.8316846592 < 100 ! ! e3 ! m3/a e3cuft/d v * 2.8316846592 < 100 ! ! e3 ! m3/d e3cuft/s v * 2.8316846592 < 100 ! ! e3 ! m3/s e3m3/a v < 28.316846592 ! k ! M ! cuft/a e3m3/d v < 28.316846592 ! k ! M ! cuft/d e3m3/s v < 28.316846592 ! k ! M ! cuft/s e3USgal/a v * 3.785411784 < 1000 ! ! e3 ! m3/a e6cuft/a v * 2.8316846592 < 100 ! e3 ! e6 ! m3/a e6cuft/d v * 2.8316846592 < 100 ! e3 ! e6 ! m3/d e6cuft/s v * 2.8316846592 < 100 ! e3 ! e6 ! m3/s e6m3/a v < 28.316846592 ! M ! G ! cuft/a e6m3/d v < 28.316846592 ! M ! G ! cuft/d e6m3/s v < 28.316846592 ! e6 ! e9 ! cuft/s e6USgal/a v * 3.785411784 < 1000 ! e3 ! e6 ! m3/a e9cuft/a m3/a e9cuft/d v * 2.8316846592 < 100 ! e6 ! e9 ! m3/d e9m3/a v < 28.316846592 ! G ! T ! cuft/a e9m3/d v < 28.316846592 ! G ! T ! cuft/d e9m3/s v < 28.316846592 ! e9 ! e12 ! cuft/s e9USgal/a v * 3.785411784 < 1000 ! e6 ! e9 ! m3/a e9USgal/s v * 3.785411784 < 1000 ! e6 ! e9 ! m3/s
Unit code Default output nN gr-f μN gr-f mN oz-f
Unit code Default output am in cm in dam ft dm in e12km e12mi e12mi e12km e3AU ly e3km e3mi e3mi e3km e6km e6mi e6mi e6km e9km AU e9mi e9km Em mi fm in Gm mi hm ft km mi mm in Mm mi nm in Pm mi pm in Tm mi Ym mi ym in Zm mi zm in μm in
Unit code Default output e12lb v * 4.5359237 < 10 ! Mt ! Gt e3lb v * 4.5359237 < 10 ! kg ! t e3ozt v * 0.311034768 < 10 ! kg ! t e3t LT ST e6carat t e6lb v * 4.5359237 < 10 ! t ! kilotonne e6ozt lb kg e6ST Mt e6t LT ST e9lb v * 4.5359237 < 10 ! kilotonne ! Mt e9t LT ST Gg lb kg lb mg gr Mg LT ST ng gr μg gr
Unit code Default output mBq fCi kBq nCi MBq μCi GBq mCi TBq Ci PBq kCi EBq kCi fCi mBq pCi Bq nCi Bq μCi kBq mCi MBq kCi TBq MCi PBq
Unit code Default output ns μs μs ms ms s ks h Ms week Gs decade Ts millennium Ps million year Es thousand million year
Unit code Default output MK keVT
Unit code Default output cL impoz usoz cl impoz usoz cm3 cuin dL impoz usoz dl impoz usoz mm3 cuin dm3 cuin e12cuft v * 2.8316846592 < 100 ! e9 ! e12 ! m3 e12impgal v * 4.54609 < 1000 ! T ! P ! l e12m3 v < 28.316846592 ! T ! P ! cuft e12U.S.gal v * 3.785411784 < 1000 ! T ! P ! l e12USgal v * 3.785411784 < 1000 ! T ! P ! l e15cuft v * 2.8316846592 < 100 ! e12 ! e15 ! m3 e15m3 Pcuft e3bdft v * 0.23597372167 < 100 ! e3 ! e6 ! m3 e3cuft v * 2.8316846592 < 100 ! ! e3 ! m3 e3impgal v * 4.54609 < 1000 ! k ! M ! l e3m3 v < 28.316846592 ! k ! M ! cuft e3U.S.gal v * 3.785411784 < 1000 ! k ! M ! l e3USgal v * 3.785411784 < 1000 ! k ! M ! l e6bdft v * 0.23597372167 < 100 ! e3 ! e6 ! m3 e6cuft v * 2.8316846592 < 100 ! e3 ! e6 ! m3 e6cuyd v * 7.64554857984 < 10 ! e3 ! e6 ! m3 e6impgal v * 4.54609 < 1000 ! M ! G ! l e6L USgal e6m3 v < 28.316846592 ! M ! G ! cuft e6U.S.gal v * 3.785411784 < 1000 ! M ! G ! l e6USgal v * 3.785411784 < 1000 ! M ! G ! l e9bdft v * 0.23597372167 < 100 ! e6 ! e9 ! m3 e9cuft v * 2.8316846592 < 100 ! e6 ! e9 ! m3 e9impgal v * 4.54609 < 1000 ! G ! T ! l e9m3 v < 28.316846592 ! G ! T ! cuft e9U.S.gal v * 3.785411784 < 1000 ! G ! T ! l e9USgal v * 3.785411784 < 1000 ! G ! T ! l GL cuft Gl cuft kL cuft kl cuft km3 cumi mL impoz usoz ml impoz usoz Ml v < 28.316846592 ! e3 ! e6 ! cuft ML v < 28.316846592 ! e3 ! e6 ! cuft TL cumi Tl cumi μL cuin μl cuin
The following tables define links for unit codes that use an SI prefix, where the linked article is different from that of the base unit.
Automatic per units [ edit ] The following table defines equivalent unit types for some of the types that can be generated automatically for unit codes of the form x /y x per y ). For example, the unit code kg/hl is not defined, so if it were used, it would be regarded as kilograms per hectolitre with unit type mass/volume; the following table would translate that to density so the unit could be converted with other density units. If "Density" is specified in the Link column, the unit name or symbol would be linked to Density if |lk=on is used.
In addition, a scale multiplier can be specified; that allows mass/area units to be converted to pressure units on the assumption that the mass refers to the force due to the "weight" of an object.
Type/type Equivalent unit type Link Multiplier /area per unit area /volume per unit volume area/area area per unit area energy/length energy per unit length energy/mass energy per unit mass energy/time power Power (physics) energy/volume energy per unit volume force/area pressure Pressure length/length gradient Grade (slope) length/time speed Speed length/time/time acceleration Acceleration mass/area pressure 9.80665 mass/length linear density mass/mass concentration mass/power mass per unit power mass/time mass per unit time mass/volume density Density power/mass power per unit mass power/volume Power density pressure/length fracture gradient speed/time acceleration Acceleration volume/area volume per unit area volume/length volume per unit length volume/time flow
The following tables define "override" unit codes which conflict with another unit when it is combined with one of the SI prefixes. The script which processes this page rejects unit codes that duplicate a known entry, however, that checking is not performed for the unit codes listed here. The Comment field documents the conflict, but is otherwise ignored.
Override code Comment daa Override default prefix which would give name "decaare". ha Override default prefix which would give name "hectoare".
Override code Comment MT For "metric ton", not "megatesla".
Override code Comment Pa For "Pascal", not "peta-are".
