L/100km to mpg, mpg to km/L, and related volume fuel efficiency units—instant results for engineering and fleet work. For hot searches like 50 mpg to L/100km, use the fuel consumption calculator link below. Free, no sign-up.
International System of Units (SI) measurements
Traditional British and American measurements
Unit measurements
This converter focuses on fuel economy expressed with volumes of liquid fuel (for example liters and gallons) and distances (kilometers or miles). Engineers and fleet analysts use these units to compare vehicles, regulations, and test cycles on the same footing.
If you are new to the metric style: liters per 100 kilometers is a "how much fuel for a fixed trip length" view. Kilometers per liter and miles per gallon are "how far per unit fuel" views. Our tool lets you move between them without doing the algebra by hand.
For quick answers to very specific searches (such as converting a particular miles-per-gallon figure to liters per 100 km), the dedicated fuel consumption converter also includes examples and tables—use both pages together while you learn.
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