Fuel Economy Converter
Convert between miles per gallon (US and UK), kilometers per liter and liters per 100 km. These units are not just multiples of each other: mpg goes up as efficiency improves, while L/100 km goes down.
Miles per gallon rises as a car gets more efficient, while liters per 100 km falls. The conversion between them is a reciprocal (for US mpg: L/100 km = 235.215 ÷ mpg).
Popular fuel economy conversions
- MPG (US) to L/100 km
- L/100 km to MPG (US)
- MPG (UK) to L/100 km
- L/100 km to MPG (UK)
- MPG (US) to MPG (UK)
- MPG (UK) to MPG (US)
- Km/L to MPG (US)
- MPG (US) to km/L
- Km/L to L/100 km
Common units
| Unit | Symbol | Value in kilometers per liter |
|---|---|---|
| kilometer per liter | km/L | 1 km/L |
| mile per gallon (US) | mpg (US) | 0.4251437074 km/L |
| mile per gallon (imperial) | mpg (UK) | 0.3540061899 km/L |
| liter per 100 kilometers | L/100 km | — |
Other units
| Unit | Symbol | Value in kilometers per liter |
|---|---|---|
| mile per liter | mi/L | 1.609344 km/L |
| gallon (US) per 100 miles | gal/100 mi | — |
| gallon (imperial) per 100 miles | gal/100 mi (UK) | — |
Historical and traditional units
| Unit | Symbol | Value in kilometers per liter |
|---|---|---|
| liter per mil | L/mil | — |