Fuel Efficiency Converter
Convert fuel efficiency between L/100km, MPG (US), MPG (UK), and km/L.
Fuel efficiency is measured differently around the world. Europe, Australia, and most of Asia use liters per 100 kilometers (L/100km) — where lower is better. The United States uses miles per gallon (MPG US), while the United Kingdom uses imperial MPG (MPG UK), which is about 20% higher due to the larger imperial gallon.
Japan and parts of South America use kilometers per liter (km/L). Converting between these units helps when comparing vehicles from different markets or reading international reviews.
The conversion formulas are: MPG (US) = 235.215 / L per 100km; MPG (UK) = 282.481 / L per 100km; km/L = 100 / L per 100km. Enter any value in L/100km and see all equivalent figures instantly.