MPG Calculator

Calculate your car's fuel economy in miles per gallon.

How Does This Calculator Work?

Miles per gallon is calculated by dividing the number of miles driven since your last fill-up by the number of gallons it took to fill the tank back up.

Track your actual fuel economy by entering the miles you drove and the gallons of fuel it took to refill your tank.

Example Calculation

Road Trip Example

300 miles driven using 10 gallons of gas.

300 ÷ 10 = 30 mpg.

Frequently Asked Questions

How accurate is this method?

The "fill-to-fill" method used here is one of the most accurate ways to measure real-world fuel economy, though results can vary slightly depending on how full each tank fill actually was.

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