Auto & Transport
MPG Calculator
Calculate miles per gallon
Created and maintained by: CalcTago Editorial TeamLast updated: 2026-02-13
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
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Frequently asked questions
What does the MPG Calculator do?
It helps you calculate miles per gallon. It supports both US and metric units.
What inputs do I need?
Enter Miles driven and Gallons used.
Are decimals supported?
Yes, you can use decimal values where appropriate.
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About this tool
This MPG Calculator helps you calculate results from the values you enter, without unnecessary steps. Fill in the fields and review the calculated output.
Adjust values to compare scenarios and see how sensitive the result is. The calculation uses the numbers as entered, so double-check units and expect small differences from rounding in the displayed totals.