How to convert miles per gallon (US) to liters per 100 kilometers
- Take the value in miles per gallon (US).
- Use the formula liters per 100 kilometers = 235.215 ÷ miles per gallon (US).
- For example, 20 mpg is 11.76 L/100 km.
About miles per gallon and liters per 100 kilometers
Miles per gallon measures how far you go on a fixed amount of fuel, while liters per 100 km measures how much fuel you burn over a fixed distance. They run in opposite directions, so you divide instead of multiply: L/100 km = 235.215 ÷ US mpg. A car doing 30 mpg uses 7.84 L/100 km.
This page uses the US gallon of 3.785 liters, as in EPA ratings. Because the conversion is a division, the gaps change size: going from 20 to 30 mpg saves 3.92 L/100 km, while going from 40 to 50 mpg saves only 1.18 L/100 km.
Examples
- 20 mpg (a full-size pickup truck) is 11.76 L/100 km
- 25 mpg (a mid-size SUV) is 9.41 L/100 km
- 30 mpg (a typical mid-size sedan) is 7.84 L/100 km
- 50 mpg (a hybrid such as the Toyota Prius) is 4.7 L/100 km
Miles per gallon to liters per 100 kilometers chart
| Miles per gallon (US, mpg) | Liters per 100 kilometers (L/100 km) |
|---|---|
| 10 | 23.52 |
| 15 | 15.68 |
| 18 | 13.07 |
| 20 | 11.76 |
| 22 | 10.69 |
| 25 | 9.41 |
| 28 | 8.4 |
| 30 | 7.84 |
| 32 | 7.35 |
| Miles per gallon (US, mpg) | Liters per 100 kilometers (L/100 km) |
|---|---|
| 35 | 6.72 |
| 40 | 5.88 |
| 45 | 5.23 |
| 50 | 4.7 |
| 55 | 4.28 |
| 60 | 3.92 |
| 70 | 3.36 |
| 100 | 2.35 |