MPG Calculator
MPG = miles driven ÷ gallons used. Drive 320 miles and fill 12.4 gallons and you averaged 25.8 MPG. Fill the tank fully at both ends of the measurement for an accurate result.
Your MPG25.8
Gallons per 100 mi3.88
vs EPA-8%
Most drivers land within 10% of the EPA combined rating. Coming in well under usually points to short trips, cold weather, low tire pressure, or heavy highway speeds.
Don't know your MPG?
Every vehicle on AutoSpecData lists its official EPA city, highway and combined ratings year by year. Search your vehicle or start from the fuel economy rankings.