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All converters

76 categories, 504 units.

Length

meter kilometer centimeter millimeter micrometer nanometer mile yard foot inch nautical mile fathom furlong chain rod hand mil astronomical unit light year parsec

Weight and Mass

kilogram gram milligram microgram metric ton pound ounce stone US ton long ton carat grain troy ounce troy pound dram slug

Volume

Area

square meter square kilometer square centimeter square millimeter hectare square mile square yard square foot square inch acre

Speed

meter/second kilometer/hour mile/hour foot/second knot mach

Time

second millisecond microsecond nanosecond minute hour day week month year decade century

Pressure

pascal kilopascal bar psi atmosphere torr millimeter of mercury inch of mercury

Energy

joule kilojoule calorie kilocalorie watt hour kilowatt hour BTU foot-pound electronvolt

Power

watt kilowatt megawatt mechanical horsepower metric horsepower BTU/hour

Data Storage

byte bit kilobyte kibibyte megabyte mebibyte gigabyte gibibyte terabyte tebibyte petabyte

Angle

degree radian gradian arcminute arcsecond turn

Temperature

celsius fahrenheit kelvin rankine

Fuel economy

kilometer per liter mile per gallon (US)mile per gallon (imperial)liter per 100 km mile per liter

Force

newton kilonewton pound-force kilogram-force dyne ounce-force ton-force (short)

Density

kilogram/cubic meter gram/cubic centimeter gram/milliliter kilogram/liter pound/cubic foot pound/cubic inch pound/US gallon ounce/cubic inch

Torque

newton meter kilonewton meter pound-foot pound-inch kilogram-force meter ounce-inch

Acceleration

meter/second² foot/second² standard gravity gal kilometer/hour² mile/hour²

Frequency

hertz kilohertz megahertz gigahertz revolution/minute radian/second degree/second

Flow

cubic meter/second liter/second liter/minute cubic meter/hour US gallon/minute cubic foot/minute US gallon/hour imperial gallon/minute

Electric charge

coulomb millicoulomb microcoulomb ampere-hour milliampere-hour elementary charge

Electric current

ampere milliampere microampere kiloampere abampere

Voltage

volt millivolt microvolt kilovolt megavolt

Electric resistance

ohm milliohm kilohm megohm microohm

Illumination

lux foot-candle phot kilolux

Sound

decibel bel neper

Typography

point pica inch millimeter pixel (96 dpi)em (12 pt)

Data transfer

bit/second kilobit/second megabit/second gigabit/second byte/second kilobyte/second megabyte/second

Angular velocity

radian/second radian/minute degree/second degree/minute revolution/second revolution/minute revolution/hour

Angular acceleration

radian/second² radian/minute² revolution/second² revolution/minute² degree/second²

Specific volume

cubic meter/kilogram liter/kilogram cubic centimeter/gram cubic foot/pound gallon (US)/pound

Moment of inertia

kilogram meter² kilogram centimeter² gram centimeter² pound foot² pound inch² ounce inch²

Volume (dry)

liter US dry pint US dry quart US dry gallon US peck US bushel cubic inch

Metric prefixes

none yotta zetta exa peta tera giga mega kilo hecto deca deci centi milli micro nano pico femto atto zepto yocto

Luminance

candela/square meter nit candela/square foot candela/square inch stilb foot-lambert lambert

Luminous intensity

candela millicandela kilocandela candlepower hefnerkerze

Magnetic flux

weber milliweber microweber maxwell volt second tesla square meter

Magnetic flux density

tesla millitesla microtesla gauss kilogauss gamma

Magnetomotive force

ampere-turn ampere kiloampere-turn gilbert

Magnetic field strength

ampere/meter kiloampere/meter ampere/centimeter oersted

Fuel efficiency (mass)

joule/kilogram kilojoule/kilogram megajoule/kilogram calorie/gram kilocalorie/kilogram BTU/pound watt hour/kilogram kilowatt hour/kilogram

Fuel efficiency (volume)

joule/cubic meter kilojoule/cubic meter megajoule/cubic meter kilocalorie/cubic meter BTU/cubic foot kilowatt hour/cubic meter joule/liter

Temperature interval

kelvin degree Celsius degree Fahrenheit degree Rankine degree Reaumur

Thermal expansion

1/kelvin 1/degree Celsius 1/degree Fahrenheit 1/degree Rankine ppm/kelvin micrometer/meter·kelvin

Thermal resistance

kelvin/watt degree Celsius/watt degree Fahrenheit·hour/BTU kelvin/kilowatt degree Fahrenheit·second/BTU

Thermal conductivity

watt/meter·kelvin kilowatt/meter·kelvin calorie/second·centimeter·°C BTU/hour·foot·°F BTU·inch/hour·foot²·°F

Specific heat capacity

joule/kilogram·kelvin kilojoule/kilogram·kelvin joule/gram·°C calorie/gram·°C BTU/pound·°F

Heat density

joule/square meter kilojoule/square meter megajoule/square meter calorie/square centimeter langley BTU/square foot

Heat flux density

watt/square meter kilowatt/square meter watt/square centimeter calorie/second·square centimeter BTU/hour·square foot

Heat transfer coefficient

watt/square meter·kelvin kilowatt/square meter·kelvin kilocalorie/hour·square meter·°C BTU/hour·square foot·°F

Radiation (dose equivalent)

sievert millisievert microsievert rem millirem

Radiation (activity)

becquerel kilobecquerel megabecquerel gigabecquerel curie millicurie microcurie rutherford

Radiation (exposure)

coulomb/kilogram millicoulomb/kilogram microcoulomb/kilogram roentgen milliroentgen

Radiation (absorbed dose)

gray milligray microgray rad millirad erg/gram

Volume (lumber)

cubic meter board foot thousand board feet cubic foot cord cord feet cunit

Moment of force

newton meter kilonewton meter millinewton meter pound-force foot pound-force inch kilogram-force meter dyne centimeter

Digital image resolution

dot/meter dot/millimeter dot/inch pixel/inch pixel/centimeter

Flow (mass)

kilogram/second gram/second kilogram/hour kilogram/minute tonne/hour pound/second pound/minute pound/hour

Flow (molar)

mole/second millimole/second mole/minute mole/hour kilomole/second kilomole/hour

Mass flux density

kilogram/second·square meter gram/second·square meter kilogram/hour·square meter pound/second·square foot pound/hour·square foot

Concentration (molar)

mole/cubic meter mole/liter millimole/liter micromole/liter mole/cubic centimeter millimole/cubic meter

Concentration (solution)

kilogram/cubic meter gram/liter milligram/liter part per million gram/100 milliliter percent (mass/volume)pound/US gallon

Viscosity (dynamic)

pascal second millipascal second poise centipoise dyne second/square centimeter pound-force second/square foot

Viscosity (kinematic)

square meter/second square millimeter/second stokes centistokes square foot/second square inch/second

Surface tension

newton/meter millinewton/meter dyne/centimeter erg/square centimeter pound-force/foot

Permeability (vapour)

kilogram/pascal·second·square meter permeability (0°C)permeability (23°C)perm inch (0°C)perm inch (23°C)

Linear charge density

coulomb/meter coulomb/centimeter coulomb/inch abcoulomb/meter

Surface charge density

coulomb/square meter coulomb/square centimeter coulomb/square inch abcoulomb/square meter

Volume charge density

coulomb/cubic meter coulomb/cubic centimeter coulomb/cubic inch abcoulomb/cubic meter

Linear current density

ampere/meter ampere/centimeter ampere/inch abampere/meter

Surface current density

ampere/square meter ampere/square millimeter ampere/square centimeter ampere/square inch

Electric field strength

volt/meter kilovolt/meter volt/centimeter volt/inch newton/coulomb

Electric resistivity

ohm meter ohm centimeter microhm centimeter ohm inch ohm circular mil/foot

Electric conductance

siemens millisiemens microsiemens kilosiemens mho

Electric conductivity

siemens/meter millisiemens/meter microsiemens/centimeter siemens/centimeter mho/meter

Capacitance

farad millifarad microfarad nanofarad picofarad abfarad

Inductance

henry millihenry microhenry nanohenry abhenry