How to convert Litres per 100 kilometres to miles per US gallon
mpg (US) = 235.214583333333 ÷ L/100 km
Divide 235.214583333333 by the positive L/100 km reading. This is a reciprocal relationship: doubling L/100 km halves mpg (US). The US liquid gallon is 3.785411784 liters. Zero and negative readings are not supported.
Worked examples
5 L/100 km ≈ 47.04291667 mpg (US)
235.214583333333 ÷ 5 ≈ 47.04291667
8 L/100 km ≈ 29.40182292 mpg (US)
235.214583333333 ÷ 8 ≈ 29.40182292
Frequently asked questions
Why does the numerical direction reverse?
Consumption measures fuel used per distance; economy measures distance per fuel volume. They are reciprocals. A lower L/100 km reading corresponds to a higher km/L or mpg reading. This tool requires positive finite inputs.