Fuel Economy Converter
Convert km per liter, L/100 km, miles per gallon and more.
In other units
- Liters per 100 km
- 100 L/100 km
- Miles per US gallon
- 2.352145833 mpg (US)
- Miles per UK gallon
- 2.824809363 mpg (UK)
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Common conversions
| km/L | L/100 km |
|---|---|
| 5 | 20 |
| 10 | 10 |
| 15 | 6.66667 |
| 20 | 5 |
| 25 | 4 |
| L/100 km | km/L |
|---|---|
| 3 | 33.3333 |
| 4 | 25 |
| 5 | 20 |
| 6 | 16.6667 |
| 7 | 14.2857 |
| 8 | 12.5 |
| 9 | 11.1111 |
| 10 | 10 |
| 12 | 8.33333 |
| 15 | 6.66667 |
| mpg (US) | L/100 km |
|---|---|
| 10 | 23.5215 |
| 15 | 15.681 |
| 20 | 11.7607 |
| 25 | 9.40858 |
| 30 | 7.84049 |
| 35 | 6.72042 |
| 40 | 5.88036 |
| 45 | 5.22699 |
| 50 | 4.70429 |
| 60 | 3.92024 |
| mpg (UK) | L/100 km |
|---|---|
| 20 | 14.124 |
| 30 | 9.41603 |
| 40 | 7.06202 |
| 50 | 5.64962 |
| 60 | 4.70802 |
Questions
How do I convert mpg to L/100 km?
Divide 235.215 by the US mpg figure. 30 mpg (US) is about 7.84 L/100 km. For UK mpg, divide 282.481 instead.
Why does the conversion divide instead of multiply?
Miles per gallon measures distance per fuel, while liters per 100 km measures fuel per distance. One is the reverse of the other, so a higher mpg means a lower L/100 km.
Why do UK and US mpg differ?
A UK gallon is about 20% larger than a US gallon, so the same car gets a higher mpg figure in the UK: 30 mpg (US) is about 36 mpg (UK).
Is it free? Do I need an account?
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