How to convert Kilometres per litre to miles per US gallon
mpg (US) = km/L × 2.35214583333333
Multiply the km/L reading by 2.35214583333333. Both sides measure distance per fuel volume, so this is a direct scale conversion. US mpg uses a 3.785411784 L gallon.
Worked examples
10 km/L ≈ 23.52145833 mpg (US)
10 × 2.35214583333333 ≈ 23.52145833
20 km/L ≈ 47.04291667 mpg (US)
20 × 2.35214583333333 ≈ 47.04291667
Frequently asked questions
Why can a fuel-economy reading change without using less fuel?
Distance per litre and distance per gallon use different fuel-volume units. US and Imperial gallons also differ. A changed numerical reading after conversion describes the same economy.