Fuel Efficiency Calculator

Calculate your real-world MPG, cost per mile, and monthly and annual fuel spend — then compare to EPA estimates to see if your car needs a tune-up.

Miles Driven (this tank or period) Gallons Used (fill-up amount) Gas Price per Gallon ($) Miles Driven per Month EPA Combined MPG (optional — for comparison)

actual MPG

cost per mile

monthly fuel cost

annual fuel cost