For UK drivers. Distances in miles, fuel in litres and imperial gallons.

MPG calculator

Fill the tank, reset the trip meter, and at the next fill-up enter the miles driven and litres added.

These calculators give estimates. Fuel prices, energy tariffs and real-world economy vary. This is general information, not tax or financial advice. Mileage rates checked against GOV.UK on 16th September 2026.