Fuel Consumption Calculator
Calculate your car's real fuel consumption in liters per 100 km from how much you filled up and the kilometers driven on that tank.
How is it calculated?
Consumption (L/100km) = (liters filled ÷ km traveled) × 100. For an accurate calculation, fill the tank all the way up, note the odometer reading, and at the next fill-up (also all the way up) use the liters you put in and the km driven between both fill-ups.
Examples
45 liters filled over 600 km
Your real consumption is 7.5 L/100km.
38 liters filled over 550 km
Your real consumption is 6.91 L/100km.
Unit conversions for fuel consumption
To measure consumption accurately, fill the tank all the way up, note the kilometers, and repeat at the next fill-up. With your real consumption, calculate the cost per kilometer with the cost per km calculator or a specific trip with the trip fuel cost calculator.
| L/100 km | Kilometers per liter | Miles per gallon (US) |
|---|---|---|
| 4.0 | 25.0 | 58.8 |
| 5.0 | 20.0 | 47.0 |
| 6.0 | 16.7 | 39.2 |
| 7.5 | 13.3 | 31.4 |
| 9.0 | 11.1 | 26.1 |
| 12.0 | 8.3 | 19.6 |