MPG Calculator — Calculate Fuel Economy of Your Car

Calculate your vehicle's actual MPG (Miles Per Gallon) or L/100km fuel economy with our free online tool.

📊 MPG Calculator

Miles Driven

Gallons Filled

Your Fuel Economy

Equivalent Metric

💡 Pro Tip

Aggressive driving (speeding, rapid acceleration, and braking) can lower your highway gas mileage by 15% to 30%. Practice smooth driving habits to save fuel.

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Frequently Asked Questions

Q: How do you calculate MPG manually?

Fill up your tank, reset your trip odometer. Drive until your next fill-up. Divide the odometer mileage by the exact gallons used to top off the tank.

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