Kilometers per Liter to Liters per 100 km (km/L to L/100 km)
Kilometers per Liter and liters per 100 kilometers are inversely related: L/100 km = 100 ÷ km/L, so 15 km/L = 6.666666667 L/100 km.
Also searched as kilometers per liter to L/100 km, kilometers per liter in L/100 km, kilometers per liter into liters per 100 kilometers, km/L to L/100 km, km/L in liters per 100 kilometers, km/L into liter per 100 kilometers, kilometer per liter to liter per 100 kilometers, km/L to liters per 100 kilometers converter and kilometres per litre to litres per 100 kilometres.
1 km/L = 100 L/100 km
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilometer per liter to liter per 100 kilometers converter to paste a column from Excel.
How to Convert Kilometer per Liter to Liter per 100 km
- L/100 km = 100 ÷ km/L
- km/L = 100 ÷ L/100 km
- Example: convert 15 km/L to L/100 km: 100 ÷ 15 = 6.666666667 L/100 km
Formula
L/100 km = 100 ÷ km/L
Derivation from SI units:
- Distance in kilometres travelled on one litre of fuel.
- Fuel used in litres per 100 km; km/L = 100 ÷ (L/100 km), so the scales are reciprocal.
- Solving for L/100 km: L/100 km = 100 ÷ km/L (a higher km/L means a lower L/100 km)
Both units are defined exactly, so the factor is exact. Kilometer per Liter definition: kilometer per liter; Liter per 100 km definition: liter per 100 kilometers.
Worked examples
- A car giving 15 km/L uses 6.666666667 L/100 km.
100 ÷ 15 = 6.666666667 L/100 km - A small car giving 20 km/L uses 5 L/100 km.
100 ÷ 20 = 5 L/100 km
Kilometer per Liter to Liter per 100 km conversion table
| Kilometers per Liter (km/L) | Liters per 100 km (L/100 km) |
|---|---|
| 5 km/L | 20 L/100 km |
| 8 km/L | 12.5 L/100 km |
| 10 km/L | 10 L/100 km |
| 12 km/L | 8.333333333 L/100 km |
| 15 km/L | 6.666666667 L/100 km |
| 18 km/L | 5.555555556 L/100 km |
| 20 km/L | 5 L/100 km |
| 25 km/L | 4 L/100 km |
| 30 km/L | 3.333333333 L/100 km |
| 40 km/L | 2.5 L/100 km |
Where it's used
Mileage in km/L (kmpl), common in India and Japan, is converted to L/100 km for European and Australian comparisons. Divide 100 by the km/L value.
Kilometer per Liter to other fuel economy units
| Conversion | 1 km/L equals |
|---|---|
| kilometer per liter to liter per 100 kilometers | 100 L/100 km |
| kilometer per liter to mile per US gallon | 2.352145833 mpg |
| kilometer per liter to mile per imperial gallon | 2.824809363 mpg (UK) |
Frequently asked questions
How do I convert km/L to L/100 km?
Divide 100 by the km/L figure: 20 km/L = 5 L/100 km.
What is the formula for kilometers per liter to liters per 100 kilometers?
L/100 km = 100 ÷ km/L. The two systems are inversely related, so divide the constant by the value; do not multiply. For example, 100 ÷ 15 = 6.666666667 L/100 km.
Why does a higher km/L give a lower L/100 km?
Liters per 100 km counts length per unit mass (an indirect system), while kilometers per liter counts mass per unit length (a direct system). A finer yarn has a higher indirect number and a lower direct number.
Is the km/L to L/100 km conversion exact?
Yes. Both units are defined exactly, and 1 km/L is exactly 100 L/100 km.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (radian) and Table 8 (non-SI units accepted for use with the SI).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Kilometers per Liter to Liters per 100 km (km/L to L/100 km). Retrieved October 25, 2026, from https://scientificconverters.com/fuel-economy/kilometers-per-liter-to-liters-per-100-km/
IEEE
Scientific Converters, "Kilometers per Liter to Liters per 100 km (km/L to L/100 km)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/fuel-economy/kilometers-per-liter-to-liters-per-100-km/