Gas Mileage Calculator
Calculate fuel economy in MPG (US and Imperial), L/100 km and km/L from distance and fuel used.
How it works
MPG = miles ÷ US gallons. L/100 km = 235.215 ÷ MPG. km/L = MPG × 0.425144. Imperial MPG = US MPG × 1.20095.
Examples
- 300 miles on 10 gallons = 30 MPG = 7.84 L/100 km.
FAQ
How do I measure accurately?
Fill the tank, reset the trip meter, drive, refill, and divide distance by fuel added.