Unit conversions

Direct answers for the conversions people actually need — each with the exact factor, the formula, a worked example and a reference table.

Weight & mass

kg → lbs

1 kg = 2.2 lbs

lbs → kg

1 lbs = 0.454 kg

g → oz

1 g = 0.04 oz

oz → g

1 oz = 28.3 g

Length & distance

cm → in

1 cm = 0.39 in

in → cm

1 in = 2.54 cm

ft → m

1 ft = 0.305 m

m → ft

1 m = 3.28 ft

mi → km

1 mi = 1.61 km

km → mi

1 km = 0.62 mi

mm → in

1 mm = 0.039 in

Temperature

°C → °F

1 °C = 33.8 °F

°F → °C

1 °F = -17.2 °C

Volume & capacity

L → gal

1 L = 0.26 gal

gal → L

1 gal = 3.79 L

ml → fl oz

1 ml = 0.03 fl oz

cups → ml

1 cups = 237 ml

Speed

mph → km/h

1 mph = 1.6 km/h

km/h → mph

1 km/h = 0.6 mph

Digital storage

MB → GB

1 MB = 0.001 GB

GB → TB

1 GB = 0.001 TB

Need a conversion that is not listed?

The full unit converter handles every unit in these categories in both directions, including kilometres, yards, metric tons, teaspoons, knots and terabytes.