Gas Mileage Calculator
Calculate your car’s fuel economy in MPG, L/100km and km/L from distance driven and fuel used. Free.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
Fuel economy
7.5 L/100km
MPG (US) 31.36
km per liter 13.33
How to use Gas Mileage Calculator
- 1Enter your numbers or dates.
- 2Results update instantly as you type.
- 3Copy the main result with one click.
Questions
Is Gas Mileage Calculator free?
Yes. Gas Mileage Calculator is 100% free with no limits, no watermark, no sign up and no email required.
Is my data sent anywhere?
No. Everything is calculated locally in your browser. Nothing you type is sent to or stored on any server.
Does Gas Mileage Calculator work on my phone?
Yes. Gas Mileage Calculator works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.
How accurate is it?
Calculations use standard formulas with full floating-point precision. For medical, legal or financial decisions, please confirm with a professional.