Fuel Economy Converter

Convert between MPG, L/100km, and km/L. Supports both US and imperial gallons.

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Frequently Asked Questions

What is the difference between US and imperial gallons?

A US gallon is 3.785 liters, while an imperial gallon is 4.546 liters. This means MPG (UK) figures are about 20% higher than MPG (US) for the same vehicle.

How do I convert L/100km to MPG?

Divide 235.215 by the L/100km value. For example, 8 L/100km equals about 29.4 MPG (US).