How to convert miles per gallon to liters per 100 kilometers
L/100 km = 235.2145833 ÷ mpgMiles per gallon and liters per 100 kilometers are inversely related: when one goes up the other goes down. Divide 235.2145833 by the value — do not multiply.
Worked examples
- 1 mile per US gallon235.2145833 ÷ 1 = 235.2145833 L/100 km
- 5 miles per gallon (US)235.2145833 ÷ 5 = 47.04291667 L/100 km
- 10 miles per gallon (US)235.2145833 ÷ 10 = 23.52145833 L/100 km
- 20 miles per gallon (US)235.2145833 ÷ 20 = 11.76072917 L/100 km
- 100 miles per gallon (US)235.2145833 ÷ 100 = 2.352145833 L/100 km
Miles per gallon (US) to liters per 100 kilometers conversion table
Values are calculated by the conversion engine using the full formula and rounded to 8 significant figures.
| Miles per gallon (mpg) | Liters per 100 kilometers (L/100 km) |
|---|---|
| 10 mpg | 23.521458 L/100 km |
| 12 mpg | 19.601215 L/100 km |
| 15 mpg | 15.680972 L/100 km |
| 18 mpg | 13.067477 L/100 km |
| 20 mpg | 11.760729 L/100 km |
| 22 mpg | 10.691572 L/100 km |
| 25 mpg | 9.4085833 L/100 km |
| 28 mpg | 8.4005208 L/100 km |
| 30 mpg | 7.8404861 L/100 km |
| Miles per gallon (mpg) | Liters per 100 kilometers (L/100 km) |
|---|---|
| 32 mpg | 7.3504557 L/100 km |
| 35 mpg | 6.7204167 L/100 km |
| 40 mpg | 5.8803646 L/100 km |
| 45 mpg | 5.2269907 L/100 km |
| 50 mpg | 4.7042917 L/100 km |
| 55 mpg | 4.2766288 L/100 km |
| 60 mpg | 3.9202431 L/100 km |
| 70 mpg | 3.3602083 L/100 km |
| 100 mpg | 2.3521458 L/100 km |
About the units
Mile per US gallon (mpg)
Miles travelled per US gallon — higher is better. The standard in the United States. One mile per US gallon equals 0.4251437074 kilometers per liter (km/L).
Liter per 100 kilometers (L/100 km)
Fuel used to cover 100 km — lower is better. The standard in Europe, Canada and Australia.
Frequently asked questions
What is the formula to convert miles per gallon to liters per 100 kilometers?
L/100 km = 235.2145833 ÷ mpg. Miles per gallon and liters per 100 kilometers are inversely related: when one goes up the other goes down. Divide 235.2145833 by the value — do not multiply.
What is 5 miles per gallon (US) in liters per 100 kilometers?
5 mpg = 47.04291667 L/100 km.
Why is this not a simple multiplication?
One unit measures the quantity directly and the other measures its inverse, so a larger value in one means a smaller value in the other. That is why the formula divides a constant by your value.
Is this mpg to L/100 km converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.