Miles per US Gallon to Liters per 100 Kilometers Converter
L/100 km = 235.2145833 ÷ mpg (US)
US mpg figures are about 17% lower than imperial mpg for the same car, because the US gallon is smaller.
An inverse measure: 5 L/100 km is twice as efficient as 10 L/100 km, not half.
1 mile per US gallon equals 235.215 liters per 100 kilometers
How to convert miles per US gallon to liters per 100 kilometers
Distance per fuel (mpg or km/L) increases with economy; fuel per distance (L/100 km) decreases. Converting between these forms is reciprocal, requires a positive value and depends on whether a gallon is US or Imperial.
L/100 km = 235.2145833 ÷ mpg (US)These units run in opposite directions: one measures distance per unit of fuel and the other fuel per unit of distance. Dividing 235.2145833 by the mile per US gallon figure gives the liter per 100 kilometers figure, and dividing it back returns the original — which is why a lower number is better on one scale and worse on the other.
7.84049 L/100 km ≈ 235.2145833 ÷ 30US mpg figures are about 17% lower than imperial mpg for the same car, because the US gallon is smaller.
An inverse measure: 5 L/100 km is twice as efficient as 10 L/100 km, not half.
Miles per US gallon to liters per 100 kilometers conversion table
Common values in miles per US gallon, converted to liters per 100 kilometers.
| Miles per US gallon (mpg (US)) | Liters per 100 kilometers (L/100 km) |
|---|---|
| 10 | 23.521458 |
| 15 | 15.680972 |
| 20 | 11.760729 |
| 25 | 9.4085833 |
| 30 | 7.8404861 |
| 35 | 6.7204167 |
| 40 | 5.8803646 |
| 50 | 4.7042917 |
| 60 | 3.9202431 |
About these units
mile per US gallonmpg (US)
Distance per US gallon. The US fuel-economy standard.
liter per 100 kilometersL/100 km
Fuel used to travel 100 kilometres. Lower is better. The European standard.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.