Gas Mileage Calculator
Calculate your vehicle's fuel efficiency in MPG from miles driven and gallons of gas used.
About the Gas Mileage Calculator
Calculate your vehicle's real-world fuel efficiency in miles per gallon from a fill-up.
How to use the Gas Mileage Calculator
- Enter the miles driven since your last fill-up (or the odometer start and end readings).
- Enter the gallons of gas used to refill the tank.
- Press Calculate to see your MPG and the L/100km equivalent.
Tips for the Gas Mileage Calculator
- For the most accurate reading, fill the tank completely both times and reset your trip odometer at the first fill-up.
Formula used by the Gas Mileage Calculator
MPG = Miles Driven ÷ Gallons UsedExample: Gas Mileage Calculator
Driving 350 miles on 10.5 gallons of gas
- Miles driven: 350
- Gallons used: 10.5
Result: 33.33 MPG
MPG = 350 ÷ 10.5 ≈ 33.33 miles per gallon.
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