L/100 km to mpg converter
Lower L/100 km is better; higher mpg is better. The UK gallon is about 20% larger than the US gallon.
How it is calculated
US mpg = 235.215 ÷ L/100 km. UK mpg = 282.481 ÷ L/100 km. km/L = 100 ÷ L/100 km. Exact unit definitions: 1 mile = 1.609344 km; US gallon = 3.785411784 L; UK gallon = 4.54609 L.