Fuel Cost Calculator
To calculate fuel cost, enter the distance, your car's fuel efficiency (km/L, L/100 km or US/UK MPG) and the fuel price per litre or gallon. Fuel used = distance × L/100 km ÷ 100, and cost = fuel used × price; split it between passengers if you share.
- Free
- No signup
- Runs in your browser
How to use Fuel Cost Calculator
- 1Enter your values in the fields; defaults show a worked example.
- 2Pick the units or options that apply to you.
- 3Read the result, which updates instantly as you type.
- 4Check the formula note under the result to see exactly how it was worked out.
Fuel Cost Calculator: questions people ask
How do I convert MPG to L/100 km?
L/100 km = 235.215 ÷ US MPG, or 282.481 ÷ UK MPG. 30 US MPG is 7.84 L/100 km.
Why are UK and US gallons different?
A UK (imperial) gallon is 4.546 L and a US gallon is 3.785 L, so the same car shows a higher MPG in the UK.
Is my data uploaded when I use the Fuel Cost Calculator?
No. The Fuel Cost Calculator runs entirely in your web browser, so your text and numbers stay on your device and work even on a slow connection.
Does the Fuel Cost Calculator work on iPhone, Android and Mac?
Yes. The Fuel Cost Calculator runs in any modern browser (Safari, Chrome, Edge or Firefox) on iPhone, iPad, Android phones, Mac, Windows and Chromebook. There is no app to install.
Is the Fuel Cost Calculator free?
Yes. The Fuel Cost Calculator is free with no signup, no watermark and no daily limit.