Fuel Economy converter
Liters per 100km to Kilometers per Liter
Converting Liters per 100km to Kilometers per Liter is a single multiplication when you know the factor. One L/100km equals 100 km/L, so multiply the value in L/100km by 100. The calculator below works in both directions and accepts decimals.
Formula 1 L/100km = 100 km/L
Need the other direction? Kilometers per Liter to Liters per 100km.
How to convert Liters per 100km to Kilometers per Liter
Litres per 100 km is an inverse measure: lower is better, and it is not linear. Kilometres per litre is a direct fuel-economy measure used in many markets.
To convert Liters per 100km to Kilometers per Liter, multiply the value in L/100km by 100. For example, 10 L/100km × 100 = 10 km/L. This works because the ratio between the two units is constant for every value in fuel economy.
Worked examples
| L/100km | km/L |
|---|---|
| 1 L/100km | 100 km/L |
| 2.5 L/100km | 40 km/L |
| 5 L/100km | 20 km/L |
| 10 L/100km | 10 km/L |
| 25 L/100km | 4 km/L |
| 50 L/100km | 2 km/L |
| 100 L/100km | 1 km/L |
Reverse conversion
| km/L | L/100km |
|---|---|
| 1 km/L | 100 L/100km |
| 5 km/L | 20 L/100km |
| 10 km/L | 10 L/100km |
| 25 km/L | 4 L/100km |
| 50 km/L | 2 L/100km |
| 100 km/L | 1 L/100km |
When this conversion is useful
This is the calculation you need when you are comparing a car's consumption with a different unit system. Because the factor is fixed, you can use the same number for a single measurement or for a batch: 1,000 L/100km is 0.1 km/L.
Is the conversion exact?
No: fuel economy has inverse units. Litres per 100 km and gallons per mile fall as efficiency rises, so the conversion divides rather than multiplies.
Reference: BIPM SI Brochure and NIST SP 811. Last reviewed: 2026-11-01.
L/100km to km/L conversion chart
The chart lists the most requested values. For a value that is not here, use the converter at the top of the page.
| Liters per 100km (L/100km) | Kilometers per Liter (km/L) |
|---|---|
| 1 L/100km | 100 km/L |
| 2 L/100km | 50 km/L |
| 3 L/100km | 33.333333 km/L |
| 4 L/100km | 25 km/L |
| 5 L/100km | 20 km/L |
| 6 L/100km | 16.666667 km/L |
| 7 L/100km | 14.285714 km/L |
| 8 L/100km | 12.5 km/L |
| 9 L/100km | 11.111111 km/L |
| 10 L/100km | 10 km/L |
| 11 L/100km | 9.090909 km/L |
| 12 L/100km | 8.333333 km/L |
| 13 L/100km | 7.692308 km/L |
| 14 L/100km | 7.142857 km/L |
| 15 L/100km | 6.666667 km/L |
| 16 L/100km | 6.25 km/L |
| 17 L/100km | 5.882353 km/L |
| 18 L/100km | 5.555556 km/L |
| 19 L/100km | 5.263158 km/L |
| 20 L/100km | 5 km/L |
| 21 L/100km | 4.761905 km/L |
| 22 L/100km | 4.545455 km/L |
| 23 L/100km | 4.347826 km/L |
| 24 L/100km | 4.166667 km/L |
| 25 L/100km | 4 km/L |
| 26 L/100km | 3.846154 km/L |
| 27 L/100km | 3.703704 km/L |
| 28 L/100km | 3.571429 km/L |
| 29 L/100km | 3.448276 km/L |
| 30 L/100km | 3.333333 km/L |
| 31 L/100km | 3.225806 km/L |
| 32 L/100km | 3.125 km/L |
| 33 L/100km | 3.030303 km/L |
| 34 L/100km | 2.941176 km/L |
| 35 L/100km | 2.857143 km/L |
| 36 L/100km | 2.777778 km/L |
| 37 L/100km | 2.702703 km/L |
| 38 L/100km | 2.631579 km/L |
| 39 L/100km | 2.564103 km/L |
| 40 L/100km | 2.5 km/L |
| 41 L/100km | 2.439024 km/L |
| 42 L/100km | 2.380952 km/L |
| 43 L/100km | 2.325581 km/L |
| 44 L/100km | 2.272727 km/L |
| 45 L/100km | 2.222222 km/L |
| 46 L/100km | 2.173913 km/L |
| 47 L/100km | 2.12766 km/L |
| 48 L/100km | 2.083333 km/L |
| 49 L/100km | 2.040816 km/L |
| 50 L/100km | 2 km/L |
| 60 L/100km | 1.666667 km/L |
| 70 L/100km | 1.428571 km/L |
| 80 L/100km | 1.25 km/L |
| 90 L/100km | 1.111111 km/L |
| 100 L/100km | 1 km/L |
Frequently asked questions
How many Kilometers per Liter are in 1 Liters per 100km?
1 L/100km equals 100 km/L.
How do I convert Liters per 100km to Kilometers per Liter?
Multiply the L/100km value by 100. Example: 25 L/100km = 4 km/L.
What is 2.5 L/100km in km/L?
2.5 L/100km = 40 km/L.
Is the L/100km to km/L conversion exact?
No: fuel economy has inverse units. Litres per 100 km and gallons per mile fall as efficiency rises, so the conversion divides rather than multiplies.
Does the calculator work offline?
Yes. The conversion runs in your browser with JavaScript, so it works after the page has loaded, even without a connection.