Fuel Mileage Calculator

Find your car's real fuel average from two odometer readings, more accurate than the brochure number.

km
km
litres
Distance covered
Fuel average
In MPG
L/100km
Why measure between two full tanks?

Filling all the way both times removes the guesswork of how much fuel was left, so distance ÷ fuel used gives a real-world figure for how you actually drive.

Why is my real mileage lower than the brochure number?

Official ratings are measured under ideal lab conditions. City traffic, AC use, tyre pressure and driving style typically bring real mileage down 10–25%.

How it works

Fill up completely, reset nothing, and drive normally until your next full fill-up. Enter both odometer readings and the fuel added the second time — that is your real-world mileage.