⛽ Fuel Efficiency
L/100km to km/L Converter
Convert L/100km to km/L instantly with a reference table.
L/100km to km/L
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Common conversions
| L/100km | km/L |
|---|
Formula:
How to convert L/100km to km/L
1
Enter your value
Type the number of l/100km you want to convert into the left box. The result in km/l appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — km/L to L/100km. Your current value carries across so you don't have to re-enter anything.
3
About L/100km and km/L
L/100km and km/L are common fuel measurements.
💡 Did you know?
km/L = 100 ÷ L/100km. A 7 L/100km car achieves 14.3 km/L. This inverse relationship means a small change at low L/100km values (e.g. from 4 to 3) saves much more fuel than the same change at high values (e.g. from 12 to 11), which is why L/100km is more honest for evaluating fuel economy improvements.
Reviewed for 2026. L/100km ↔ km/L conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.