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Fuel Economy Calculator

Calculate MPG, fuel costs, and efficiency for your vehicle.

Tips for Using This Calculator

• All calculations are performed instantly as you type

• Use the copy button to save your results

• Results are automatically shared in the URL for easy sharing

• This calculator works completely offline after loading

How do I calculate my car's MPG?

What's considered good gas mileage?

Speed Converter

Convert between mph, km/h, m/s, knots, and other speed units.

Last updated: 2/22/2026