Ontology of units of Measure (OM)
The Ontology of units of Measure (OM) 2.0 models concepts and relations important to scientific research. It has a strong focus on units, quantities, measurements, and dimensions.
Hajo Rijgersberg, Don Willems, Jan Top
Submodule of the Ontology of units of Measure (OM)
typeset by LaTeX command
OMLaTeX command that can be used to render this quantity or unit.
LaTeX command
LaTeX formatted symbol
has LaTeX symbol
OMLaTeX formatted symbol may include commands such as \unit and \E as defined in OMLaTeX.
LaTeX symbol
has abbreviation
abbreviation
alternative LaTeX formatted symbol
has alternative LaTeX symbol
An alternative OMLaTeX formatted symbol, which may include commands such as \unit and \E as defined in OMLaTeX.
alternative LaTeX symbol
alternative label
has alternative symbol
alternative symbol
has longcomment
long comment
longcomment
has symbol
symbol
has unofficial abbreviation
Used to specify abbreviations that are used in e.g. every day speech but are not defined in any standard.
unofficial abbreviation
has unofficial label
Used to specify labels that are used in e.g. every day speech but are not defined in any standard.
unofficial label
commonly has unit of measure
This property indicates a commonly-used unit.
commonly has unit
has base
has base quantity
has base unit
has denominator
has derived quantity
has derived unit
has dimension
has numerator
has phenomenon
has prefix
has quantity
has scale
has term 1
has term 2
has unit
has value
has exponent
has factor
has numerical value
has off-set
has SI amount of substance dimension exponent
has SI electric current dimension exponent
has SI length dimension exponent
has SI luminous intensity dimension exponent
has SI mass dimension exponent
has SI thermodynamic temperature dimension exponent
has SI time dimension exponent
amount of money unit
angular speed unit
area unit
capacitance unit
Celsius temperature scale
Celsius temperature unit
compound unit
cubic prefixed metre
Dimensions are abstract properties of units and quantities neglecting their vectorial or tensorial character and all numerical factors including their sign.
dimension
dynamic viscosity unit
electric current unit
electric potential unit
electrical resistance unit
Fahrenheit temperature scale
Fahrenheit temperature unit
frequency unit
interval scale
length unit
mass unit
A measure combines a number to a unit of measure. For example, "3 m" is a measure.
measure
metre per prefixed second (time)
number
number unit
power unit
A prefix is a name that precedes a basic unit of measure to indicate a decimal or binary multiple or fraction of the unit. Each prefix has a unique symbol that is prepended to the unit symbol. For example, an electric current of 0.000 000 001 ampere is written by using the SI-prefix nano as 1 nanoampere or 1 nA.
prefix
prefixed ampere
prefixed are
prefixed degree Celsius
prefixed farad
prefixed gram
prefixed hertz
prefixed kelvin
prefixed litre
prefixed metre
prefixed metre per prefixed second (time)
prefixed metre per second (time)
prefixed ohm
prefixed pascal
prefixed second (time)
prefixed tonne
prefixed unified atomic mass unit
prefixed unit
prefixed volt
prefixed watt
pressure unit
A quantity is a representation of a quantifiable (standardised) aspect (such as length, mass, and time) of a phenomenon (e.g., a star, a molecule, or a food product). Quantities are classified according to similarity in their (implicit) metrological aspect, e.g. the length of my table and the length of my chair are both classified as length.
quantity
ratio scale
ratio unit
SI prefix
measurement scale
meetschaal
schaal
scale
singular unit
speed unit
square prefixed metre
stress unit
In order to achieve a coherent, interdependent set of units of measure in the wide variety of units that exist, units are organised in systems of units. A system of units is based on a set of units chosen by convention to be the system’s base units, units that are considered to be mutually independent (i.e., can’t be expressed in terms of each other).
system of units
temperature unit
thermal conductivity unit
thermal resistance unit
thermodynamic temperature scale
time unit
torque unit
unit of measure
unit of measurement
A unit of measure is a definite magnitude of a quantity, defined and adopted by convention or by law. It is used as a standard for measurement of the same quantity, where any other value of the quantity can be expressed as a simple multiple of the unit. For example, length is a quantity; the metre is a unit of length that represents a definite predetermined length. When we say 10 metre (or 10 m), we actually mean 10 times the definite predetermined length called "metre".
unit
unit division
unit exponentiation
unit multiplication
volume unit
volumetric flow rate unit
wave number unit
Australian dollar
澳元
Brazilian real
巴西里拉
Canadian dollar
加元
Chinese yuan
中国元
Gaussian CGS system of units
mixed CGS system of units
symmetrised CGS system of units
Gaussian system of units
Gaussische eenhedenstelsel
高斯系统单位
Hong Kong dollar
港元
Indian rupee
印度卢比
International System of Units
Internationale Stelsel van Eenheden
国际单位制
International Unit
国际单位
Japanese yen
日元
Mexican peso
墨西哥比索
New Zealand dollar
新西兰美元
Norwegian krone
挪威克朗
RussianRuble
俄罗斯卢布
Singapore dollar
新加坡元
South African rand
南非兰特
South Korean won
韩元
Swedish krona
瑞典克朗
Swiss franc
瑞士法郎
Turkish lira
土耳其里拉
United States dollar
美国美元
The abampere is a unit of electric current defined as 10 ampere.
abampere
abampère
The abfarad is a unit of capacitance defined as 1.0e9 farad.
abfarad
The abohm is a unit of electrical resistance defined as 1.0e-9 ohm.
abohm
The abvolt is a unit of electric potential defined as 1.0e-8 volt.
abvolt
international acre
The international acre is a unit of area defined as 4.0468564224e3 square metre.
acre (international)
英亩（国际）
US survey acre
The US survey acre is a unit of area defined as 4.046872609874252e3 square metre.
acre (US survey)
英亩（美国调查）
The acre foot is a unit of volume defined as 1.233489e3 cubic metre.
acre foot
The ampere is a unit of electric current defined as the constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum. The ampere is a base unit in the International System of Units.
The ampere is a unit of electric current defined as the constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum.
ampere
ampère
angstrom
The ångström is a unit of length defined as 1.0e-10 metre. The unit is often used for wavelengths of electromagnetic radiation or to express the sizes of atoms and molecules.
ångström
angular speed dimension
The are is a unit of area defined as 100 square metre.
are
area dimension
oppervlaktedimensie
The atronomical unit is a unit of length defined as 149 597 870 700 metre (IAU 2012 Resolution).
astronomical unit
standard atmosphere
The standard atmosphere is a unit of pressure defined as 1.01325e5 pascal.
atmosfeer (standaard)
atmosphere (standard)
technical atmosphere
The technical atmosphere is a unit of pressure defined as 9.80665e4 pascal.
atmosphere (technical)
atto
The bar is a unit of pressure defined as 100 000 pascal.
bar
巴（压力计量单位）
The barn is a unit of area defined as 1.0e-28 square metre.
barn
US barrel
The US barrel is a unit of volume defined as 1.589873e-1 cubic metre.
barrel (US)
The barye is a unit of pressure defined as 0.1 pascal.
barye
The baud is a unit of symbol rate defined as one distinct symbol change or signalling event made to the transmission medium per second in a digitally modulated signal or a line code.
baud
The biot is a unit of electric current defined as 10 ampere.
biot
US bushel
The US bushel is a unit of volume defined as 3.523907e-2 cubic metre.
bushel (US)
capacitance dimension
The carat (mass) is a unit of mass defined as 2.0e-4 kilogram.
carat (mass)
karaat (massa)
centi
The centimetre is a unit of length defined as 1.0e-2 metre.
centimeter
centimetre
The centimetre of mercury is a unit of pressure defined as 1.0e-2 metre of mercury.
centimeter kwik
centimetre of mercury
Centimetre per day is a unit of speed defined as centimetre divided by day.
centimeter per dag
centimetre per day
Centimetre per second is a unit of speed defined as centimetre divided by second.
centimeter per seconde
centimetre per second
The chain is a unit of length defined as 2.011684e1 metre.
chain
The cicero is a unit of length defined as 12 point (Didot).
cicero
The cicular mil is a unit of area defined as 5.067075e-10 square metre.
circular mil
The cord is a unit of volume defined as 3.624556 cubic metre.
cord
coulomb per volt
cubic centimetre
kubieke centimeter
cubic kiloparsec
kubieke kiloparsec
Cubic metre is a unit of volume defined as the volume of a cube whose sides measure exactly one metre. Cubic metre is a derived unit in the International System of Units.
Cubic metre is a unit of volume defined as the volume of a cube whose sides measure exactly one metre.
cubic metre
kubieke meter
cubic metre per second
kubieke meter per seconde
cubic metre per year
kubieke meter per jaar
cubic parsec
kubieke parsec
US customary cup
The US customary cup is a unit of volume defined as 2.365882e-4 cubic metre.
cup (US customary)
The day is a unit of time defined as 86400 second.
dag
day
deka
deca
decatesla
decavolt
decawatt
decaweber
deci
The decibar is a unit of pressure defined as 1.0e-1 bar.
decibar
The decimetre is a unit of length defined as 1.0e-1 metre.
decimeter
decimetre
centigrade
The degree Celsius is a unit of temperature defined as 1 kelvin. The degree Celsius is a derived unit in the International System of Units.
The degree Celsius is a unit of temperature defined as 1 kelvin.
degree Celsius
graad Celsius
摄氏度
The degree Fahrenheit is a unit of temperature defined as 5.555556e-1 kelvin.
degree Fahrenheit
graad Fahrenheit
The degree Rankine is a unit of temperature defined as 5.555556e-1 kelvin.
degree Rankine
graad Rankine
The degree Réaumur is a unit of temperature defined as 1.25 kelvin.
degree Réaumur
graad Réaumur
The desserspoon is a unit of volume defined as 2 teaspoon.
dessertspoon
dimensionOne
US dry gallon
gallon (US dry)
The US dry gallon is a unit of volume defined as 4.40488377086e-3 cubic metre.
dry gallon (US)
US dry pint
pint (US dry)
The US dry pint is a unit of volume defined as 5.506105e-4 cubic metre.
dry pint (US)
US dry quart
quart (US dry)
The US dry quart is a unit of volume defined as 1.101221e-3 cubic metre.
dry quart (US)
dynamic viscosity dimension
electric current dimension
electric potential dimension
electrical resistance dimension
energy dimension
euro
欧元
exa
The farad is a unit of capacitance defined as ampere times second divided by volt = coulomb divided by volt = coulomb squared divided by joule = coulomb squared divided by newton times metre = second squared times coulomb squared divided by square metre times kilogram = second to the power 4 times ampere squared divided by square metre times kilogram. The farad is a derived unit in the International System of Units.
The farad is a unit of capacitance defined as ampere times second divided by volt = coulomb divided by volt = coulomb squared divided by joule = coulomb squared divided by newton times metre = second squared times coulomb squared divided by square metre times kilogram = second to the power 4 times ampere squared divided by square metre times kilogram.
farad
US survey fathom
The US survey fathom is a unit of length defined as 1.828804 metre.
fathom (US survey)
femto
The fermi is a unit of length defined as 1.0e-15 metre.
fermi
imperial fluid ounce
ounce (imperial fluid)
The imperial fluid ounce is a unit of volume defined as 2.841306e-5 cubic metre.
fluid ounce (imperial)
US fluid ounce
ounce (US fluid)
The US fluid ounce is a unit of volume defined as 2.957353e-5 cubic metre.
fluid ounce (US)
international foot
The international foot is a unit of length defined as 3.048e-1 metre.
foot (international)
英尺（国际）
US survey foot
The US survey foot is a unit of length defined as 3.048006e-1 metre.
foot (US survey)
frequency dimension
international furlong
The international furlong is a unit of length defined as 201.168 metre.
furlong (international)
imperial gallon
The imperial gallon is a unit of volume defined as 4.54609e-3 cubic metre.
gallon (imperial)
US gallon
The US gallon is a unit of volume defined as 3.785412e-3 cubic metre.
gallon (US)
giga
The gigaparsec is a unit of length defined as 1.0e9 parsec. Gebruikt voor de afstand op de schaal van het heelal.
gigaparsec
imperial gill
The imperial gill is a unit of volume defined as 1.420653e-4 cubic metre.
gill (imperial)
US gill
The US gill is a unit of volume defined as 1.182941e-4 cubic metre.
gill (US)
The grain is a unit of mass defined as 6.479891e-5 kilogram.
grain
The gram is a unit of mass defined as 1.0e-3 kilogram.
gram
hecto
The hertz is a unit of frequency defined as 1 divided by second. The hertz is a derived unit in the International System of Units.
The hertz is a unit of frequency defined as 1 divided by second.
hertz
赫兹
boiler horsepower
The boiler horsepower is a unit of power defined as 9.80950e3 watt.
horsepower (boiler)
British horsepower
imperial horsepower
The British horsepower is a unit of power defined as 7.4570e2 watt.
horsepower (British)
electric horsepower
The electric horsepower is a unit of power defined as 7.46e2 watt.
horsepower (electric)
metric horsepower
The metric horsepower is a unit of power defined as 7.354988e2 watt.
horsepower (metric)
water horsepower
The water horsepower is a unit of power defined as 7.46043e2 watt.
horsepower (water)
The hour is a unit of time defined as 3600 second.
hour
uur
小时
British hundredweight
The British hundredweight is a unit of mass defined as 5.080235e1 kilogram.
hundredweight (British)
US hundredweight
The US hundredweight is a unit of mass defined as 4.535924e1 kilogram.
hundredweight (US)
international inch
The international inch is a unit of length defined as 2.54e-2 metre.
inch (international)
英寸（国际）
joule per second
joule per seconde
The kelvin is a unit of temperature defined as 1/273.16 of the thermodynamic temperature of the triple point of water. The kelvin is a base unit in the International System of Units.
The kelvin is a unit of temperature defined as 1/273.16 of the thermodynamic temperature of the triple point of water.
kelvin
kelvin per watt
kilo
The kilogram is a unit of mass defined as the mass of the international prototype of the kilogram. The kilogram is a base unit in the International System of Units.
The kilogram is a unit of mass defined as the mass of the international prototype of the kilogram.
kilogram
公斤
omgekeerde meter kilogram seconde tot de macht -2
reciprocal metre kilogram second to the power -2
The kilohertz is a unit of frequency defined as 1.0e3 hertz.
kilohertz
kiloohm
kilohm
The kilometre is a unit of length defined as 1.0e3 metre.
kilometer
kilometre
公里
Kilometre per hour is a unit of speed defined as kilometre divided by hour.
kilometer per uur
kilometre per hour
The kiloparsec is a unit of length defined as 1.0e3 parsec. Gebruikt voor afstanden op de schaal van het melkwegstelsel.
kiloparsec
kilowatt
kilowatt-hour
kilowatthour
kilowatt hour
international knot
The international knot is a unit of speed defined as nautical mile per hour.
knoop (internationaal)
knot (international)
海里/小时（国际）
lengtedimensie
length dimension
lightyear
The light year is a unit of length defined as 9.46073e15 metre.
lichtjaar
light year
US liquid pint
pint (US liquid)
The US liquid pint is a unit of volume defined as 4.731765e-4 cubic metre.
liquid pint (US)
US liquid quart
quart (US liquid)
The US liquid quart is a unit of volume defined as 9.463529e-4 cubic metre.
liquid quart (US)
liter
The litre is a unit of volume defined as 1.0e-3 cubic metre.
litre
liter per uur
litre per hour
mass dimension
massadimensie
mass of the international prototype of the kilogram
mega
megaeuro
The megahertz is a unit of frequency defined as 1.0e6 hertz.
megahertz
The megaparsec is a unit of length defined as 1.0e6 parsec. Gebruikt voor afstanden op de schaal van clusters.
megaparsec
megawatt
meter
The metre is a unit of length defined as the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. The metre is a base unit in the International System of Units.
The metre is a unit of length defined as the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second.
metre
The metre of mercury is a unit of pressure defined as 133 322 pascal.
meter kwik
metre of mercury
Metre per day is a unit of speed defined as metre divided by day.
meter per dag
metre per day
Metre per second is a unit of speed defined as metre divided by second. Metre per second is a derived unit in the International System of Units.
Metre per second is a unit of speed defined as metre divided by second.
meter per seconde
metre per second
Metre per second squared is a unit of acceleration defined as metre divided by second squared. Metre per second squared is a derived unit in the International System of Units.
Metre per second squared is a unit of acceleration defined as metre divided by second squared.
meter per seconde kwadraat
metre per second squared
micro
The microampere is a unit of electric current defined as 1.0e-6 ampere.
microampere
microampère
The microbar is a unit of pressure defined as 1.0e-6 bar.
microbar
微巴
The microgram is a unit of mass defined as 1.0e-6 gram.
microgram
微克
microliter
microlitre
The micrometre is a unit of length defined as 1.0e-6 metre.
micrometer
micrometre
微米
The micron is a unit of length defined as 1.0e-6 metre.
micron
micronewton meter
micronewton metre
microsecond
microseconde
thou
The mil (length) is a unit of length defined as 2.54e-5 metre.
mil (length)
statute mile
The statute mile is a unit of length defined as 1.609344e3 metre.
mile (statute)
Mile (statute) per hour is a unit of speed defined as mile (statute) divided by hour.
mijl per uur
mile (statute) per hour
US survey mile
The US survey mile is a unit of length defined as 1.609347e3 metre.
mile (US survey)
milli
The milliampere is a unit of electric current defined as 1.0e-3 ampere.
milliampere
milliampère
The millibar is a unit of pressure defined as 1.0e-3 bar.
millibar
The milligram is a unit of mass defined as 1.0e-3 gram.
milligram
毫克
milligram RAE
The millihertz is a unit of frequency defined as 1.0e-3 hertz.
millihertz
milliliter
millilitre
The millimetre is a unit of length defined as 1.0e-3 metre.
millimeter
millimetre
毫米
The millimetre of mercury is a unit of pressure defined as 1.0e-3 metre of mercury.
millimeter kwik
millimetre of mercury
Millimetre per day is a unit of speed defined as millimetre divided by day.
millimeter per dag
millimetre per day
Millimetre per hour is a unit of speed defined as millimetre divided by hour.
millimeter per uur
millimetre per hour
Millimetre per second is a unit of speed defined as millimetre divided by second.
millimeter per seconde
millimetre per second
Millimetre per second squared is a unit of acceleration defined as millimetre divided by second squared.
millimeter per seconde kwadraat
millimetre per second squared
millinewton meter
millinewton metre
Wordt gebruikt om de waargenomen verandering van de positie van sterren uit te drukken (de proper motion).
millisecond (angle) per year
milliseconde (hoek) per jaar
millisecond
milliseconde
millivolt
milliwatt
The minute (time) is a unit of time defined as 60 second.
minute
minuut
分钟
The month is a unit of time.
maand
month
nano
international nautical mile
The international nautical mile is a unit of length defined as 1852 metre.
nautical mile (international)
zeemijl (internationaal)
海里（国际）
Nautical mile per hour is a unit of speed defined as nautical mile divided by hour.
nautical mile per hour
zeemijl per uur
The newton is a unit of force defined as kilogram times metre divided by second squared. The newton is a derived unit in the International System of Units.
The newton is a unit of force defined as kilogram timesmetre divided by second squared.
newton
牛顿
newton meter
newton metre
newton per square metre
newton per vierkante meter
The ohm is a unit of electrical resistance defined as volt divided by ampere = square metre times kilogram divided by second to the power 3 times ampere squared. The ohm is a derived unit in the International System of Units.
The ohm is a unit of electrical resistance defined as volt divided by ampere = square metre times kilogram divided by second to the power 3 times ampere squared.
ohm
unit one
Unit one is a unit of dimension one.
one
apothecaries' ounce
ounce (troy)
troy ounce
The apothecaries' ounce is a unit of mass defined as 3.110348e-2 kilogram.
ounce (apothecaries')
avoirdupois ounce
The avoirdupois ounce is a unit of mass defined as 2.834952e-2 kilogram.
ounce (avoirdupois)
The parsec is a unit of length defined as 3.08567758149137e16 metre.
parsec
Parts per million is a unit of dimension one defined as 1/1 000 000.
parts per million
The pascal is a unit of pressure and stress defined as newton divided by square metre = joule divided by cubic metre = kilogram divided by metre second squared. The pascal is a derived unit in the International System of Units.
The pascal is a unit of pressure and stress defined as newton divided by square metre = joule divided by cubic metre = kilogram divided by metre second squared.
pascal
pascal second
pascal seconde
US peck
The US peck is a unit of volume defined as 8.809768e-3 cubic metre.
peck (US)
Troy pennyweight
The Troy pennyweight is a unit of mass defined as 1.555174e-3 kilogram.
pennyweight (Troy)
The percent is a unit of dimension one defined as 1/100.
percent
procent
百分
peta
ATA pica
The ATA pica is a unit of length defined as 12 point (ATA).
pica (ATA)
Postscript pica
The Postscript pica is a unit of length defined as 12 point (Postscript).
pica (Postscript)
TeX pica
The TeX pica is a unit of length defined as 12 point (TeX).
pica (TeX)
pico
imperial pint
The pint is a unit of volume defined as 568.26125 millilitre.
pint (imperial)
ATA point
The ATA point is a unit of length defined as 0.3514598e-3 metre.
point (ATA)
Didot point
The Didot point is a unit of length defined as 0.3759e-3 metre.
point (Didot)
Postscript point
The Postscript point is a unit of length defined as 0.013888888888888888888888888888889 inch.
point (Postscript)
TeX point
The TeX point is a unit of length defined as 0.01383700013837000138370001383 inch.
point (TeX)
apothecaries' pound
pound (troy)
troy pound
The apothecaries' pound is a unit of mass defined as 3.732417e-1 kilogram.
pound (apthecaries')
avoirdupois pound
The avoirdupois pound is a unit of mass defined as 4.535924e-1 kilogram.
pound (avoirdupois)
pound sterling
英镑
power dimension
pressure dimension
imperial quart
The imperial quart is a unit of volume defined as 1.1365 litre.
quart (imperial)
The radian is a unit of angle defined as the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle. The radian is a derived unit in the International System of Units.
The radian is a unit of angle defined as the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle.
radiaal
radian
弧度
radiaal per seconde
radian per second
Reciprocal metre is a unit of wavenumber defined as 1 divided by metre. Reciprocal metre is a derived unit in the International System of Units.
Reciprocal metre is a unit of wavenumber defined as 1 divided by metre.
omgekeerder meter
reciprocal metre
The revolution is a unit of angle defined as 6.283185 radian.
revolution
US rod
perch
pole
The US rod is a unit of length defined as 5.029210 metre.
rod (US)
The second is a unit of time defined as the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom. The second is a base unit in the International System of Units.
The second is a unit of time defined as the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.
second
seconde
The slug is a unit of mass defined as 1.459390e1 kilogram.
slug
金属块
Solar luminosity is a unit used in astronomy to denote stellar or galactic radiant fluxes (http://en.wikipedia.org/wiki/SolarLuminosity).
solar luminosity
Solar mass is a unit used in astronomy to denote stellar or galactic masses (http://en.wikipedia.org/wiki/SolarMass).
solar mass
zonsmassa
Solar radius is a unit used in astronomy to denote stellar or stellar system radii (http://en.wikipedia.org/wiki/solarRadius).
solar radius
snelheiddimensie
speed dimension
square centimetre
vierkante centimeter
square kilometre
vierkante kilometer
Square metre is a unit of area defined as the area of a square whose sides measure exactly one metre. Square metre is a derived unit in the International System of Units.
Square metre is a unit of area defined as the area of a square whose sides measure exactly one metre.
square metre
vierkante meter
平方米
square millimetre
vierkante millimeter
The statampere is a unit of electric current defined as 3.335641e-10 ampere.
statampere
statampère
The statfarad is a unit of capacitance defined as 1.112650e-12 farad.
statfarad
The statohm is a unit of electrical resistance defined as 8.987552e11 ohm.
statohm
The statvolt is a unit of electric potential defined as 2.997925e2 volt.
statvolt
The stere is a unit of volume defined as cubic metre.
stere
US tablespoon
The US tablespoon is a unit of volume defined as 1.478676e-5 cubic metre.
tablespoon (US)
US teaspoon
The US teaspoon is a unit of volume defined as 4.928922e-6 cubic metre.
teaspoon (US)
tera
thermal conductivity dimension
thermal resistance dimension
absolute-temperatuurdimensie
thermodynamic temperature dimension
dimensie van tijd
time dimension
long ton
The long ton is a unit of mass defined as 1.016047e3 kilogram.
ton (long)
register ton
The register ton is a unit of volume defined as 2.831658 cubic metre.
ton (register)
short ton
The short ton is a unit of mass defined as 9.071847e2 kilogram.
ton (short)
short assay ton
The short assay ton is a unit of mass defined as 2.916667e-2 kilogram.
ton (short assay)
The ton of refrigeration is a unit of power defined as 3.516853e3 watt.
ton of refrigeration
metric ton
The tonne is a unit of mass defined as 1000 kilogram.
ton
tonne
公吨
The torr is a unit of pressure defined as 1.333224e2 pascal.
torr
The unified atomic mass unit is a unit of mass defined as 1.660538782(83)e-27 kilogram.
unified atomic mass unit
The volt is a unit of electric potential defined as watt divided by ampere = joule divided by coulomb = newton times metre divided by ampere times second = kilogram times square metre divided by ampere times second to the power 3. The volt is a derived unit in the International System of Units.
The volt is a unit of electric potential defined as watt divided by ampere = joule divided by coulomb = newton times metre divided by ampere times second = kilogram times square metre divided by ampere times second to the power 3.
volt
volt per ampere
volt per ampère
volume dimension
volumedimensie
volumetric flow rate dimension
The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3. The watt is a derived unit in the International System of Units.
The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3.
watt
watt per ampere
watt per ampère
watt per meter kelvin
watt per metre kelvin
golfgetaldimensie
wavenumber dimension
The week is a unit of time defined as 6.04800e5 second.
week
international yard
The international yard is a unit of length defined as 9.144e-1 metre.
yard (international)
码（国际）
The year is a unit of time defined as 3.1536e7 second.
jaar
year
yocto
yotta
zepto
zetta
amount of money
angular speed
hoeksnelheid
hoekfrequentie
angular frequency
angular velocity
oppervlakte
面积
Area expresses the two-dimensional size of a defined part of a surface, typically a region bounded by a closed curve. It is a derived quantity in the International System of Units. Area is length squared.
area
oppervlak
body mass
Capacitance is the ability to hold electrical charge. It is a derived quantity in the International System of Units. Capacitance is electric charge divided by electric potential.
capaciteit
electric capacitance
electrische capaciteit
capacitance
Celsius scale
International Celsius Temperature scale of 1990
Celsiusschaal
摄氏温标
Celsiustemperatuur
Celsius temperature
Compressive stress is a stress that, when applied, acts towards the center of a material.
compressive stress
cost
date
datum
diepte
depth
直径
diameter
distance
afstand
距离
duur
duration
dynamische viscositeit
dynamic viscosity
Viscosity is the definite resistance to change of form of many materials.
electric current
Electric current is the flow of electric charge. It is a base quantity in the International System of Units. Electric current is electric charge divided by time.
current
voltage
electrische potentiaal
electric potential
Electric potential is the potential energy per unit charge associated with static (time-invariant) electric field.
Electrical resistance is the degree to which an object opposes an electric current through it. It is a derived quantity in the International System of Units. Electrical resistance is electric potential divided by electric current.
electrical resistance
resistance
electric resistance
epoch
华氏温标
Fahrenheit scale
Fahrenheitschaal
Fahrenheittemperatuur
Fahrenheit temperature
Frequency is a measure of the number of occurrences of a repeating event per unit time.
频率
frequency
frequentie
hoogte
height
Length is the amount of space between two geographical points along a curve. It is a base quantity in the International System of Units and other systems of units. Length is speed times time. The metre, a base unit of length in the International System of Units, is defined in terms of speed of light during a certain time interval.
长度
length
lengte
mass
massa
Mass is the amount of matter of a phenomenon. It is a base quantity in the International System of Units. Mass is force divided by acceleration.
质量
periode
period
Power is the time rate at which work is done. It is a derived quantity in the International System of Units. Power is energy divided by time.
power
功率
vermogen
pressure
Pressure is the force applied to or distributed over a surface. It is a derived quantity in the International System of Units. Pressure is force divided by area.
ratio
snelheid (scalair)
Speed is the time rate of motion measured by the distance moved over in unit time.
speed
速度
mechanische spanning
stress
Stress is a force that produces or tends to produce deformation in a body measured by the force applied per unit area.
temperatuur
temperature
Temperature is the extent to which an object is hot.
温度
Termal conductivity indicates the ability of a material to conduct heat.
thermal conductivity
thermische geleidbaarheid
thermal resistance
dikte
thickness
tijd
time
Time is a base quantity in the International System of Units and other systems of units. It is measured by numbers of repetitions of cyclical events.
时间
扭矩
torque
koppel
Torque is the effectiveness of a force to produce rotation about an axis, measured by the product of the force and the perpendicular distance from the line of action of the force to the axis.
snelheid (vector)
Velocity is the rate of change of position.
velocity
volume
inhoud
Volume is a measure of how much three-dimensional space any phenomenon occupies. It is a derived quantity in the International System of Units. Volume is length to the power 3.
体积
volumetric flow rate
flow rate
volume flow rate
volume flow
Wavenumber is the number of repeating units of a propagating wave (the number of times a wave has the same phase) per unit of space.
wavenumber
golfgetal
width
breedte