Fuel Consumption Calculator
L/100km or MPG, your choice. Add a fuel price to see the real cost per trip.
km
L
$
—Consumption
—Estimated cost
How the Fuel Consumption Calculator Works
Select your unit system (L/100km for metric, MPG for imperial), enter the distance traveled and the fuel used. The calculator instantly shows your consumption rate.
Optionally enter the fuel price per litre (metric) or per gallon (imperial) to get an estimated cost. In metric mode, the cost is shown per 100 km. In imperial mode, it is shown per mile.
Frequently Asked Questions
How is L/100km calculated?
L/100km = (fuel used in litres ÷ distance in km) × 100. For example, if you used 40 L to drive 500 km: (40 ÷ 500) × 100 = 8 L/100km.
How is MPG calculated?
MPG (miles per gallon) = distance in miles ÷ fuel used in US gallons. A higher MPG means better fuel efficiency. The US gallon is 3.785 litres.
What is a good fuel consumption?
For a typical passenger car, a good fuel consumption is under 8 L/100km (metric) or above 30 MPG (imperial). Hybrid vehicles often achieve 4–5 L/100km, while large SUVs or trucks may use 12–15 L/100km.
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