Enter a number in any field and hit “Enter”—or click anywhere outside the field—to calculate the conversions.

Length
in = ft = m
Area
in2 = ft2 = m2
Volume
gal (US) = in3 = ft3 = dm3
Mass
lb = kg
Density
lb/ft3 = kg/m3
Force
lbf = kG = N
Torque
lbf·ft = kG·m = N·m
Pressure
in H2O = in Hg = mm Hg = lbf/in2 (psi) = atm = kG/cm2 (at) = mbar (hPa) = kPa
Energy
kcal = Btu = hp·h = kWh = kJ
Power
hp = metric hp = kW
Velocity
ft/min = mi/h = m/min = km/h = m/s
Flow Rate
ft3/min (cfm) = m3/h = m3/min = m3/s
Temperature
°F = °C
Fuel Consumption
mi/gal (US) = mi/gal (UK) = l/100 km