Popular fuel consumption conversions
- Miles per gallon to liters per 100 kilometersL/100 km = 235.2145833 ÷ mpg
- Miles per gallon to miles per gallon1 mpg = 1.20095 mpg (UK)
- Miles per gallon to kilometers per liter1 mpg = 0.425144 km/L
- Liters per 100 kilometers to miles per gallonmpg = 235.2145833 ÷ L/100 km
- Liters per 100 kilometers to miles per gallonmpg (UK) = 282.4809363 ÷ L/100 km
- Liters per 100 kilometers to kilometers per literkm/L = 100 ÷ L/100 km
- Miles per gallon to miles per gallon1 mpg (UK) = 0.832674 mpg
- Miles per gallon to liters per 100 kilometersL/100 km = 282.4809363 ÷ mpg (UK)
- Miles per gallon to kilometers per liter1 mpg (UK) = 0.354006 km/L
- Kilometers per liter to miles per gallon1 km/L = 2.35215 mpg
- Kilometers per liter to liters per 100 kilometersL/100 km = 100 ÷ km/L
- Kilometers per liter to miles per gallon1 km/L = 2.82481 mpg (UK)
About fuel consumption units
Fuel economy comes in two flavours that are reciprocals of each other. Distance-per-volume units (mpg, km/L) get bigger as a car gets more efficient; volume-per-distance units (L/100 km, gal/100 mi) get smaller. Converting between the two families is a division, not a multiplication — and remember that US and UK mpg use different gallons.
Fuel Consumption unit reference
| Unit | Symbol | Value in km/L | System |
|---|---|---|---|
| Kilometer per liter | km/L | 1 km/L | Metric |
| Liter per 100 kilometers | L/100 km | 100 ÷ value | Metric |
| Mile per US gallon | mpg | 0.42514371 km/L | US customary |
| Mile per imperial gallon | mpg (UK) | 0.35400619 km/L | Imperial |
| Mile per liter | mi/L | 1.609344 km/L | Other |
| Kilometer per US gallon | km/gal | 0.26417205 km/L | Other |
| US gallon per 100 miles | gal/100 mi | 42.514371 ÷ value | US customary |
| Liter per 100 miles | L/100 mi | 160.9344 ÷ value | Other |
Frequently asked questions
What is the SI unit of fuel consumption?
This converter uses the kilometer per liter (km/L) as its reference unit; every other unit is defined relative to it.
How many fuel consumption units can I convert?
8 units are supported here, across Metric, US customary, Imperial, Other systems. Every pair can be converted in both directions.
Does this fuel consumption converter work offline?
Yes. Once the page has loaded, every calculation runs locally in your browser — nothing is sent to a server.