Fuel Cost Calculator

Calculate the fuel cost of a trip in km or miles, with L/100km or MPG, and split it between passengers.

Runs in your browser. Your data and files never leave your device.

About the Fuel Cost Calculator

Enter the distance, your car’s fuel economy and the fuel price to see what a trip costs — one way or return — and what each person should chip in.

metric: fuel = distance × L/100km ÷ 100
imperial: fuel = distance ÷ MPG
cost = fuel × price

Are US and UK MPG the same?

No. A UK (imperial) gallon is about 20% bigger than a US gallon, so the same car shows a higher MPG in the UK.