55 mpg = 4.28 L/100km
Also: 23.38 km/L (kmpl)
| mpg | L/100km | km/L |
|---|---|---|
| 40 | 5.88 | 17.01 |
| 45 | 5.23 | 19.13 |
| 50 | 4.7 | 21.26 |
| 55 | 4.28 | 23.38 |
| 60 | 3.92 | 25.51 |
| 65 | 3.62 | 27.63 |
| 70 | 3.36 | 29.76 |
International System of Units (SI) measurements
Traditional British and American measurements
mpg → L/100km: L/100km = 235.215 ÷ mpg
mpg → km/L (kmpl): km/L = mpg × 0.4251
L/100km → mpg: mpg = 235.215 ÷ L/100km
These formulas use US gallons. UK (imperial) mpg uses a larger gallon (4.546 L vs 3.785 L), so UK 50 mpg ≈ 5.65 L/100km rather than 4.70 L/100km.