EngiRef / Collection
Units
Conversion and unit definitions
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Conversion and unit definitions
Meter
length
lengthm
Kilometer
length
lengthkm
Centimeter
length
lengthcm
Millimeter
length
lengthmm
Micrometer
length
lengthµm
Nanometer
length
lengthnm
Inch
length
lengthin
Foot
length
lengthft
Yard
length
lengthyd
Mile
length
lengthmi
Nautical Mile
length
lengthnmi
Mil (Thousandth)
length
lengthmil
Square Meter
area
aream²
Square Kilometer
area
areakm²
Square Centimeter
area
areacm²
Square Millimeter
area
areamm²
Square Inch
area
areain²
Square Foot
area
areaft²
Square Yard
area
areayd²
Acre
area
areaacre
Hectare
area
areaha
Cubic Meter
volume
volumem³
Liter
volume
volumeL
Milliliter
volume
volumemL
Cubic Centimeter
volume
volumecm³
Cubic Millimeter
volume
volumemm³
Cubic Inch
volume
volumein³
Cubic Foot
volume
volumeft³
Gallon (US)
volume
volumegal
Quart (US)
volume
volumeqt
Pint (US)
volume
volumept
Fluid Ounce (US)
volume
volumefl oz
Barrel (Oil)
volume
volumebbl
Kilogram
mass
masskg
Gram
mass
massg
Milligram
mass
massmg
Metric Ton
mass
masst
Pound
mass
masslb
Ounce
mass
massoz
Short Ton (US)
mass
masston
Long Ton (UK)
mass
masslong ton
Slug
mass
massslug
Grain
mass
massgr
Newton
force
forceN
Kilonewton
force
forcekN
Meganewton
force
forceMN
Millinewton
force
forcemN
Pound-force
force
forcelbf
Kilopound
force
forcekip
Kilogram-force
force
forcekgf
Dyne
force
forcedyn
Ounce-force
force
forceozf
Pascal
pressure
pressurePa
Kilopascal
pressure
pressurekPa
Megapascal
pressure
pressureMPa
Gigapascal
pressure
pressureGPa
Bar
pressure
pressurebar
Millibar
pressure
pressurembar
Atmosphere
pressure
pressureatm
PSI
pressure
pressurepsi
KSI
pressure
pressureksi
mmHg (Torr)
pressure
pressuremmHg
Inches of Mercury
pressure
pressureinHg
Inches of Water
pressure
pressureinH₂O
Kelvin
temperature
temperatureK
Celsius
temperature
temperature°C
Fahrenheit
temperature
temperature°F
Rankine
temperature
temperature°R
Joule
energy
energyJ
Kilojoule
energy
energykJ
Megajoule
energy
energyMJ
Gigajoule
energy
energyGJ
Calorie
energy
energycal
Kilocalorie
energy
energykcal
BTU
energy
energyBTU
Kilowatt-hour
energy
energykWh
Foot-pound
energy
energyft·lbf
Electronvolt
energy
energyeV
Therm
energy
energytherm
Watt
power
powerW
Kilowatt
power
powerkW
Megawatt
power
powerMW
Gigawatt
power
powerGW
Milliwatt
power
powermW
Horsepower (Mech)
power
powerhp
Horsepower (Metric)
power
powerhp(M)
BTU/hour
power
powerBTU/hr
Foot-pound/second
power
powerft·lbf/s
Ton of Refrigeration
power
powerTR
Meter/second
velocity
velocitym/s
Kilometer/hour
velocity
velocitykm/h
Foot/second
velocity
velocityft/s
Mile/hour
velocity
velocitymph
Knot
velocity
velocitykn
Mach
velocity
velocityMa
Foot/minute
velocity
velocityft/min