Fuel Consumption Converter
Convert between miles per gallon (US and UK), liters per 100 kilometers, kilometers per liter and other fuel economy units.
Convert fuel consumption
Result
Fuel Consumption units
Every unit below converts to every other one in the calculator. Values are relative to the base unit, the kilometer per liter (km/L).
| Unit | Symbol | System | Value |
|---|---|---|---|
| Kilometer per liter | km/L | metric | Base unit |
| Liter per 100 kilometers | L/100 km | metric | = 100 km/L |
| Mile per gallon (US) | mpg | US customary | ≈ 0.4251437074 km/L |
| Mile per gallon (imperial) | mpg (UK) | imperial | ≈ 0.3540061899 km/L |
| Mile per liter | mi/L | other | = 1.609344 km/L |
| Gallon (US) per 100 miles | gal/100 mi | US customary | ≈ 42.51437074 km/L |
| Liter per kilometer | L/km | metric | = 1 km/L |
Kilometer per liter quick reference
| Kilometer per liter | Liter per 100 kilometers | Mile per gallon (US) | Mile per gallon (imperial) |
|---|---|---|---|
| 1 km/L | = 100 L/100 km | ≈ 2.352145833 mpg | ≈ 2.824809363 mpg (UK) |
| 10 km/L | = 10 L/100 km | ≈ 23.52145833 mpg | ≈ 28.24809363 mpg (UK) |
| 100 km/L | = 1 L/100 km | ≈ 235.2145833 mpg | ≈ 282.4809363 mpg (UK) |
| 1000 km/L | = 0.1 L/100 km | ≈ 2352.145833 mpg | ≈ 2824.809363 mpg (UK) |
Among the 7 fuel consumption units on this page, the smallest is the mile per gallon (imperial) (mpg (UK)) and the largest is the liter per 100 kilometers (L/100 km).
More fuel consumption conversions
- Mile per gallon (US) to Liter per 100 kilometersmpg → L/100 km
- Liter per 100 kilometers to Mile per gallon (US)L/100 km → mpg
- Kilometer per liter to Liter per 100 kilometerskm/L → L/100 km
- Mile per gallon (US) to Kilometer per litermpg → km/L
- Mile per gallon (imperial) to Liter per 100 kilometersmpg (UK) → L/100 km
- Kilometer per liter to Mile per gallon (US)km/L → mpg
- Liter per 100 kilometers to Kilometer per literL/100 km → km/L
- Liter per 100 kilometers to Mile per gallon (imperial)L/100 km → mpg (UK)
- Mile per gallon (US) to Mile per gallon (imperial)mpg → mpg (UK)
- Mile per gallon (imperial) to Mile per gallon (US)mpg (UK) → mpg
About fuel consumption units
Fuel economy is stated in two opposite ways: distance per amount of fuel (mpg, km/L), where higher is better, or fuel per distance (L/100 km, gal/100 mi), where lower is better. The two kinds are reciprocals, so converting between them means dividing, not multiplying.
US and UK mpg use different gallons: the US gallon is 3.785411784 L and the imperial gallon is 4.54609 L. To get L/100 km, divide 235.214583 by mpg (US) or 282.480936 by mpg (UK).
Frequently asked questions
- How do I convert mpg to L/100 km?
- Divide 235.214583 by the US mpg figure. For example, 30 mpg (US) is about 7.84 L/100 km. For UK mpg, divide 282.480936 by the figure instead.
- Is UK mpg the same as US mpg?
- No. The imperial gallon is larger, so the same car shows a higher number in UK mpg. One mpg (UK) is about 1.201 mpg (US).
- How many liters per 100 kilometers are in one kilometer per liter?
- One kilometer per liter = 100 L/100 km (liters per 100 kilometers).
- How many miles per gallon (US) are in one kilometer per liter?
- One kilometer per liter ≈ 2.352145833 mpg (miles per gallon (US)).
- How many miles per gallon (imperial) are in one kilometer per liter?
- One kilometer per liter ≈ 2.824809363 mpg (UK) (miles per gallon (imperial)).