Gas Mileage Calculator
MPG from distance and gallons used.
Result
Fuel economy
25MPG
How it’s worked out
- MPG = miles driven ÷ gallons used = 100 ÷ 4 = 25
Common questions
How do I calculate my car's gas mileage?
Fill up your tank, reset the trip odometer, drive normally, then fill up again. Divide miles driven by gallons used. For example, 300 miles on 10 gallons = 30 MPG.
What is considered good gas mileage?
For most passenger cars, 30+ MPG combined is good. Hybrids often achieve 40–60 MPG. Trucks and SUVs typically get 18–25 MPG. Compare against the EPA estimate for your vehicle.