Gas Mileage Calculator

Calculate your vehicle's fuel efficiency (MPG or L/100km) based on distance and fuel consumption.

Fuel Economy30.00 MPG
Equivalent7.84 L/100km

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How to Calculate Gas Mileage

Fuel efficiency measures how far a vehicle can travel per unit of fuel. In different parts of the world, this is calculated using different units.

Fuel Efficiency Formulas

  • US Miles Per Gallon (MPG): Measures the distance in miles divided by the fuel volume in US gallons:
    MPG = Distance (miles) ÷ Fuel (gallons)
  • Liters per 100 Kilometers (L/100km): Measures the volume of fuel in liters used to travel 100 kilometers:
    L/100km = (Fuel (liters) ÷ Distance (km)) × 100

Conversion Rule

To convert between MPG and L/100km, divide 235.215 by the value you want to convert. For example, a car that gets 30 MPG consumes 235.215 / 30 = 7.84 L/100km.