How it works

The result expresses how many litres are used for every 100 kilometres. A lower L/100 km value means better fuel economy.

Standard formulalitres per 100 km = fuel / distance × 100

Worked example

Using 40 litres over 500 km gives 8 L/100 km.

Can I enter miles and gallons?

Convert them to kilometres and litres first for this version.

Is a lower result better?

Yes, when comparing similar driving conditions and vehicle use.

Does traffic affect the result?

Yes. Use distance and fuel from the same trip to measure actual use.

Can I compare two vehicles?

Calculate each vehicle using comparable trips, then compare L/100 km.