Free Online Calculators

Gas Mileage Calculator

Calculate fuel efficiency (km/L or kmpl) from distance and fuel used. Compare car mileage.

Mileage / Fuel Efficiency
⛽ Fuel Efficiency
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Mileage (km/L)—
Mileage (L/100km)—
Mileage (US mpg)—
Cost per km—

How this is calculated

Mileage = distance ÷ fuel used. L/100 km = 100 ÷ km/L. Miles per US gallon = km/L × 2.35215. Cost per km = fuel price ÷ km/L. For a fair figure, fill the tank fully both times and use the distance between the two fill-ups.

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