Unit Converter

Fuel Consumption Converter

Convert between MPG US, MPG Imperial, L/100 km and km/L, then estimate trip fuel use, trip cost and tank range.

Fuel economy conversion

Fuel economy value

From unit

Optional trip distance

Distance unit

Fuel price per liter

Tank size in liters

US MPG to L/100 km uses 235.214583 / MPG. Imperial MPG to L/100 km uses 282.480936 / MPG.

km/L is the inverse style: km/L = 100 / L/100 km.

Trip fuel is estimated with distance km x L/100 km / 100. Cost is fuel used times price per liter.

Use your real average fuel economy for the best estimate.

How do you convert MPG to L/100 km?

For US MPG, L/100 km = 235.214583 / MPG. For Imperial MPG, L/100 km = 282.480936 / MPG.

Which fuel consumption number is better?

Lower L/100 km is better. Higher MPG and higher km/L are better.

Can this estimate trip fuel cost?

Yes. Enter distance and fuel price, and the calculator estimates fuel used and trip cost.

Why does real fuel use differ?

Traffic, speed, tire pressure, load, terrain, weather and driving style can all change real-world fuel consumption.