Online Fuel Efficiency Converter

Convert km/l, l/100km, and mpg. Calculate and compare your vehicle's efficiency.

Fuel consumption is expressed differently in each country. In many metric countries: km/l (the higher, the more efficient). In Europe: l/100km (the lower, the more economical). In the US: mpg (miles per gallon). To convert km/l to l/100km: divide 100 by the value. Example: 12 km/l = 8.33 l/100km. For mpg to km/l: multiply by 0.4251. Example: 30 mpg = 12.75 km/l. Modern compact cars typically achieve 10–15 km/l (23-35 mpg) in the combined cycle.

Frequently Asked Questions

How do I convert km/l to l/100km?

Divide 100 by the value. Example: 12 km/l = 100 ÷ 12 = 8.33 l/100km.

How do I convert mpg to km/l?

Multiply by 0.4251. Example: 30 mpg = 12.75 km/l.

High km/l or low l/100km: which is better?

Both indicate efficiency. High km/l = more km with less fuel; low l/100km = less fuel per 100 km.

What is the average consumption of a modern car?

Modern compact cars typically do 10 to 15 km/l in the combined cycle (urban + highway).

Is this converter free?

Yes, completely free, with no registration and no limit.