Unit converters

Convert anything

Pick a conversion — every page has a live converter, the exact formula and a full reference table.

Length

cm → in in → cm ft → m m → ft km → mi mi → km ft → in in → ft m → yd yd → m cm → mm mm → cm m → km km → m

Weight

kg → lb lb → kg g → oz oz → g lb → oz oz → lb kg → g g → kg kg → st st → kg lb → st st → lb t → kg kg → t

Volume

mL → L L → mL L → gal gal → L cup → mL mL → cup fl oz → mL mL → fl oz L → qt qt → L gal → qt qt → gal cup → fl oz fl oz → cup

Area

ft² → m² m² → ft² ac → ft² ft² → ac ac → m² m² → ac ha → ac ac → ha km² → mi² mi² → km² m² → km² km² → m² in² → cm² cm² → in²

Speed

km/h → mph mph → km/h mph → m/s m/s → mph km/h → m/s m/s → km/h kn → mph mph → kn kn → km/h km/h → kn ft/s → mph mph → ft/s ft/s → m/s m/s → ft/s

Data Storage

GB → MB MB → GB TB → GB GB → TB MB → KB KB → MB GB → KB KB → B B → KB MB → B B → MB TB → MB PB → TB TB → PB

Time

min → s s → min hr → min min → hr hr → s d → hr hr → d d → s wk → d d → wk yr → d d → yr yr → mo mo → d

Pressure

psi → bar bar → psi psi → kPa kPa → psi atm → psi psi → atm bar → atm atm → bar mmHg → psi psi → mmHg kPa → bar bar → kPa atm → kPa kPa → atm

Energy

kcal → kJ kJ → kcal cal → J J → cal kWh → MJ MJ → kWh BTU → J J → BTU BTU → kWh kWh → BTU kcal → J J → kcal Wh → J J → Wh

Power

kW → hp hp → kW W → kW kW → W hp → W W → hp kW → BTU/h BTU/h → kW W → BTU/h BTU/h → W MW → kW kW → MW hp → BTU/h BTU/h → hp

Angle

rad → deg deg → rad deg → grad grad → deg deg → arcmin arcmin → deg deg → arcsec arcsec → deg rad → grad grad → rad tr → deg deg → tr tr → rad rad → tr

Frequency

Hz → kHz kHz → Hz kHz → MHz MHz → kHz MHz → GHz GHz → MHz Hz → MHz MHz → Hz Hz → GHz GHz → Hz RPM → Hz Hz → RPM RPM → kHz kHz → RPM

Digital Image Resolution

dpi → dpcm dpcm → dpi dpi → ppi ppi → dpi dpi → dpmm dpmm → dpi ppi → ppcm ppcm → ppi ppi → ppmm ppmm → ppi dpi → ppm ppm → dpi dpi → lpi lpi → dpi

Cooking

tsp → tbsp tbsp → tsp tbsp → cup cup → tbsp cup → ml ml → cup cup → fl oz fl oz → cup fl oz → ml ml → fl oz cup → L L → cup pt → cup cup → pt