Free Gas Mileage Calculator

Find your vehicle's actual MPG from miles driven and gallons used.

Your actual MPG often differs from the EPA-rated sticker MPG due to driving style, terrain, weather, tire pressure, and load — tracking your real-world MPG over several fill-ups gives a more accurate picture of your vehicle's typical efficiency.

Worked Example

Example: Drove 350 miles, used 12.5 gallons to refill → 28 MPG.

Formula / Method

MPG = Miles Driven / Gallons Used

Worked Example

Example: Drove 350 miles, used 12.5 gallons to refill → 28 MPG.

Formula / Method

MPG = Miles Driven / Gallons Used