Fuel consumption converter: convert L/100km, mpg (US/UK), and km/L instantly to compare fuel economy and trip cost assumptions.
Convert fuel consumption units instantly — L/100km to mpg, mpg (US) to mpg (UK), or mpg to L/100km. Perfect for travel budgeting, comparing vehicle efficiency, and real-world fuel costs.
Fuel units:
Consumption units are directional: L/100km means lower is better, while mpg and km/L mean higher is better.
| L/100 km | 100 / (km/L) |
|---|---|
| km/L | 100 / (L/100 km) |
| mpg US | 2.35215 × (km/L) or 235.215 / (L/100 km) |
| mpg UK | 2.82481 × (km/L) or 282.481 / (L/100 km) |
Fuel Consumption Converter FAQs
A fuel consumption converter converts fuel-economy units such as L/100 km, mpg, and km/L. It is useful when different cars, reviews, or countries show fuel economy in different unit systems.
Enter a value, choose the source unit, and then choose the target unit. This converter can quickly convert mpg to L/100 km, L/100 km to mpg, and km/L to and from both systems.
L/100 km shows how much fuel a vehicle uses over distance, so lower is better. mpg and km/L show how far a vehicle travels on a fixed amount of fuel, so higher is better.
Yes. It supports both US mpg and UK mpg. They are not the same because a US gallon and an imperial gallon are different sizes.
Fuel-economy units are directional. A low L/100 km value converts to a high mpg or km/L value. The vehicle is not changing, only the unit system is.
Use a fuel consumption converter when you want to compare or translate fuel-economy units. Use a fuel cost calculator when you want to estimate trip cost from distance, fuel efficiency, and fuel price.
Yes. It is useful when one car is listed in L/100 km and another in mpg or km/L. Converting them to the same unit makes the comparison easier.
