Fuel Efficiency Calculator

Enter distance and fuel used to calculate fuel efficiency in L/100km (metric) or MPG (imperial).

Inputs

Distance (miles)
Consumption (gallons)

Notes

  • Metric result uses liters per 100 kilometers (L/100km).
  • Imperial result uses miles per gallon (MPG).
  • For accurate results, enter the actual trip distance and fuel filled for the same trip.

Frequently Asked Questions

How do I calculate L/100km?

Enter distance in kilometers and fuel used in liters. The formula is (liters / kilometers) x 100.

How do I calculate MPG?

Enter distance in miles and fuel used in gallons. The formula is miles / gallons.

Is this calculator free?

Yes. The Autozis fuel efficiency calculator is free and requires no signup.

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