Fuel Economy converter
Kilometers per Liter to Liters per 100km
Converting Kilometers per Liter to Liters per 100km is a single multiplication when you know the factor. One km/L equals 100 L/100km, so multiply the value in km/L by 100. The calculator below works in both directions and accepts decimals.
Formula 1 km/L = 100 L/100km
Need the other direction? Liters per 100km to Kilometers per Liter.
How to convert Kilometers per Liter to Liters per 100km
Kilometres per litre is a direct fuel-economy measure used in many markets. Litres per 100 km is an inverse measure: lower is better, and it is not linear.
To convert Kilometers per Liter to Liters per 100km, multiply the value in km/L by 100. For example, 10 km/L × 100 = 10 L/100km. This works because the ratio between the two units is constant for every value in fuel economy.
Worked examples
| km/L | L/100km |
|---|---|
| 1 km/L | 100 L/100km |
| 2.5 km/L | 40 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 |
Reverse conversion
| L/100km | km/L |
|---|---|
| 1 L/100km | 100 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 |
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 km/L is 0.1 L/100km.
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.
km/L to L/100km 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.
| Kilometers per Liter (km/L) | Liters per 100km (L/100km) |
|---|---|
| 1 km/L | 100 L/100km |
| 2 km/L | 50 L/100km |
| 3 km/L | 33.333333 L/100km |
| 4 km/L | 25 L/100km |
| 5 km/L | 20 L/100km |
| 6 km/L | 16.666667 L/100km |
| 7 km/L | 14.285714 L/100km |
| 8 km/L | 12.5 L/100km |
| 9 km/L | 11.111111 L/100km |
| 10 km/L | 10 L/100km |
| 11 km/L | 9.090909 L/100km |
| 12 km/L | 8.333333 L/100km |
| 13 km/L | 7.692308 L/100km |
| 14 km/L | 7.142857 L/100km |
| 15 km/L | 6.666667 L/100km |
| 16 km/L | 6.25 L/100km |
| 17 km/L | 5.882353 L/100km |
| 18 km/L | 5.555556 L/100km |
| 19 km/L | 5.263158 L/100km |
| 20 km/L | 5 L/100km |
| 21 km/L | 4.761905 L/100km |
| 22 km/L | 4.545455 L/100km |
| 23 km/L | 4.347826 L/100km |
| 24 km/L | 4.166667 L/100km |
| 25 km/L | 4 L/100km |
| 26 km/L | 3.846154 L/100km |
| 27 km/L | 3.703704 L/100km |
| 28 km/L | 3.571429 L/100km |
| 29 km/L | 3.448276 L/100km |
| 30 km/L | 3.333333 L/100km |
| 31 km/L | 3.225806 L/100km |
| 32 km/L | 3.125 L/100km |
| 33 km/L | 3.030303 L/100km |
| 34 km/L | 2.941176 L/100km |
| 35 km/L | 2.857143 L/100km |
| 36 km/L | 2.777778 L/100km |
| 37 km/L | 2.702703 L/100km |
| 38 km/L | 2.631579 L/100km |
| 39 km/L | 2.564103 L/100km |
| 40 km/L | 2.5 L/100km |
| 41 km/L | 2.439024 L/100km |
| 42 km/L | 2.380952 L/100km |
| 43 km/L | 2.325581 L/100km |
| 44 km/L | 2.272727 L/100km |
| 45 km/L | 2.222222 L/100km |
| 46 km/L | 2.173913 L/100km |
| 47 km/L | 2.12766 L/100km |
| 48 km/L | 2.083333 L/100km |
| 49 km/L | 2.040816 L/100km |
| 50 km/L | 2 L/100km |
| 60 km/L | 1.666667 L/100km |
| 70 km/L | 1.428571 L/100km |
| 80 km/L | 1.25 L/100km |
| 90 km/L | 1.111111 L/100km |
| 100 km/L | 1 L/100km |
Frequently asked questions
How many Liters per 100km are in 1 Kilometers per Liter?
1 km/L equals 100 L/100km.
How do I convert Kilometers per Liter to Liters per 100km?
Multiply the km/L value by 100. Example: 25 km/L = 4 L/100km.
What is 2.5 km/L in L/100km?
2.5 km/L = 40 L/100km.
Is the km/L to L/100km 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.