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General Mileage Calculator

Calculates fuel economy in miles per gallon from the distance driven and fuel consumed.

How it works

Miles per gallon

Formula and assumptions

Fuel economy = miles driven ÷ US gallons consumed. This assumes US gallons; Imperial gallons produce a different MPG figure.

Example

Use the sample values, calculate, and change one input at a time.

Frequently asked questions

Are results exact? Results depend on the assumptions and inputs above.

Can I use this for professional decisions? Verify critical results independently.

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Frequently asked questions

Are gallons US or Imperial?

The result uses US gallons. Imperial-gallon MPG values are different.

What should I check before relying on the result?

Confirm the input units and assumptions described above; independently verify safety-critical, medical, financial or professional decisions.