Fuel economy converter

Convert L/100 km, km/L, US mpg, and UK mpg. Petrol and diesel economy stays separate from electric consumption.

A lower L/100 km is less fuel. km/L and mpg rise when the car uses less. Enter the figure from the spec sheet and pick the two units. The result uses the standard economy factors on this site. An amount of zero stays blank because those inverses divide by the value.

From
L/100 km
1
To
km/L
100

Common conversions

FromAmountToResult
L/100 km6km/L16.6667
L/100 km6mpg (US)39.2024
L/100 km6mpg (UK)47.0802
km/L15L/100 km6.6667
mpg (US)30L/100 km7.8405
mpg (US)30mpg (UK)36.0285
mpg (UK)40L/100 km7.062
mpg (UK)40mpg (US)33.307

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