Fuel Economy Converter

Fuel economy describes how efficiently a vehicle uses fuel. It is expressed in two opposite ways: as the fuel used over a fixed distance, such as liters per 100 kilometers, where a lower number is better, or as the distance covered on a unit of fuel, such as miles per gallon or kilometers per liter, where a higher number is better.

Liters per 100 km are standard in Europe, while miles per gallon are used in the United States and the United Kingdom, with gallons of different sizes. Because the two families are inverses of each other, converting between them is not a simple multiplication.