Kilometres per litre to Litres per 100 km
Type a value in Kilometres per litre and get the result in Litres per 100 km, calculated exactly.
30 Kilometres per litre ≈ 3.333333333 Litres per 100 km
Exact factorRounded for display to about 10 significant digits.
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Formula
L/100 km = 100 ÷ km/L
Kilometres per litre and Litres per 100 km are inversely related: divide 100 by the value in Kilometres per litre to get Litres per 100 km.
Worked examples
- 1 km/L = 100 L/100 km
- 30 km/L ≈ 3.333333333 L/100 km
- 100 km/L = 1 L/100 km
This factor is exact by definition.
Conversion table
| Kilometres per litre (km/L) | Litres per 100 km (L/100 km) |
|---|---|
| 10 | 10 |
| 15 | ≈ 6.666667 |
| 20 | 5 |
| 25 | 4 |
| 30 | ≈ 3.333333 |
| 35 | ≈ 2.857143 |
| 40 | 2.5 |
| 45 | ≈ 2.222222 |
| 50 | 2 |
| 60 | ≈ 1.666667 |
| 70 | ≈ 1.428571 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: Litres per 100 km to Kilometres per litre
| Litres per 100 km (L/100 km) | Kilometres per litre (km/L) |
|---|---|
| 10 | 10 |
| 15 | ≈ 6.666667 |
| 20 | 5 |
| 25 | 4 |
| 30 | ≈ 3.333333 |
| 35 | ≈ 2.857143 |
| 40 | 2.5 |
| 45 | ≈ 2.222222 |
| 50 | 2 |
| 60 | ≈ 1.666667 |
| 70 | ≈ 1.428571 |
Unit definitions
- Kilometres per litre km/L
- Kilometres travelled on one litre of fuel.
- Litres per 100 km L/100 km
- Litres of fuel used to travel 100 kilometres; lower is more economical.
Questions people ask
Kilometres per litre to Litres per 100 km: what is the conversion factor?
One km/L is 100 L/100 km.
How do I convert Kilometres per litre to Litres per 100 km?
Use the formula above. For example, 30 km/L = ≈ 3.333333333 L/100 km.
Is the conversion exact?
Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.
Factors checked 19 October 2026.