How to measure
1
Fill and reset
Fill the tank until the nozzle clicks and reset the trip meter.
2
Drive as usual
At the next fill-up, fill to the top and note the liters and the distance.
3
Result
500 km on 40 liters = 12.5 km/L = 8 L/100 km.
Converting units
L/100 km = 100 ÷ km/L. A US gallon is 3.785 L and a mile 1.609 km.
| L/100 km | km/L | MPG (US) |
|---|---|---|
| 5 | 20.00 | 47.04 |
| 6 | 16.67 | 39.20 |
| 8 | 12.50 | 29.40 |
| 10 | 10.00 | 23.52 |
| 12 | 8.33 | 19.60 |
| 15 | 6.67 | 15.68 |
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FAQ
How do I calculate L/100 km?
Divide liters by distance and multiply by 100: 40 L for 500 km = 8 L/100 km.
How do I convert MPG to L/100 km?
Choose “Convert units”, pick MPG (US or UK) and enter the value.
What will a trip cost?
Use the Fuel Cost Calculator with your consumption and the fuel price.