How this calculator works
Use distance and fuel measured over the same trip or refill interval. A lower L/100 km means less fuel used; a higher km/L or MPG means greater distance per unit fuel. US and Imperial gallons are different and are labeled separately.
The formula
L/100 km = fuel / distance × 100
km/L = distance / fuelA quick example
500 km using 35 L gives 7 L/100 km and about 14.285714 km/L.
How to use this calculator
- Enter the labeled values, using a decimal point for fractions.
- Check the units and assumptions.
- Calculate, review the result and copy it if needed.
A few common questions
How is this result calculated?
L/100 km = fuel / distance × 100
km/L = distance / fuel
What assumptions should I check?
Use distance and fuel measured over the same trip or refill interval. A lower L/100 km means less fuel used; a higher km/L or MPG means greater distance per unit fuel. US and Imperial gallons are different and are labeled separately.
Can I see a worked example?
500 km using 35 L gives 7 L/100 km and about 14.285714 km/L.