L/100km to km/L Converter
Enter a value below to convert liters per 100 km to kilometers per liter. Fuel economy is reciprocal, so you divide: km/L = 100 / L/100km - for example 8 L/100km is 12.50 km/L. For the opposite direction, use our km/L to L/100km converter.
8 L/100km = 12.50 km/L. Convert liters per 100 km to kilometers per liter. Need the reverse? See km/L to L/100km.
Liters per 100 kilometers
- Definition
- Liters per 100 km (symbol: L/100km) is a measure of fuel consumption: the volume of fuel, in liters, a vehicle burns to travel 100 kilometers. Because the distance is fixed and the fuel varies, a lower number means a more efficient car - the opposite sense to kilometers per liter.
- History / origin
- It is the metric standard for fuel consumption, defined from the liter and the kilometer. As Europe and most of the world moved to SI units, L/100km became the headline figure on car specifications and dashboards.
- Current use
- L/100km is the official fuel-consumption unit across Europe, Australia, New Zealand, South Africa and much of Asia, quoted on manufacturer brochures, window stickers and trip computers.
Kilometers per liter
- Definition
- Kilometers per liter (symbol: km/L) is a measure of fuel economy: the distance in kilometers a vehicle travels on one liter of fuel. A higher number means a more efficient car, making it the reciprocal of liters per 100 km.
- History / origin
- It is built from the kilometer and the liter, both metric units, so unlike miles per gallon it involves no gallon at all - neither the US gallon of 3.785 liters nor the UK (Imperial) gallon of 4.546 liters. It frames the same data as L/100km in distance-first form.
- Current use
- Kilometers per liter is widely used for fuel economy in India, Japan, parts of South America and the Middle East, where drivers prefer a distance-per-liter figure that rises as efficiency improves.
Liters per 100 km to km/L conversion table
| Liters per 100 km [L/100km] | Kilometers per liter [km/L] |
|---|---|
| 3 L/100km | 33.3333333333 km/L |
| 4 L/100km | 25 km/L |
| 5 L/100km | 20 km/L |
| 6 L/100km | 16.6666666667 km/L |
| 7 L/100km | 14.2857142857 km/L |
| 8 L/100km | 12.5 km/L |
| 9 L/100km | 11.1111111111 km/L |
| 10 L/100km | 10 km/L |
| 12 L/100km | 8.3333333333 km/L |
| 15 L/100km | 6.6666666667 km/L |
| 20 L/100km | 5 km/L |
| 25 L/100km | 4 km/L |
Popular liters per 100 km to km/L conversions
Everyday fuel-economy figures, rounded to two decimals - the kind of numbers you meet on real car specifications.
| Liters per 100 km [L/100km] | Kilometers per liter [km/L] |
|---|---|
| 4 L/100km | 25 km/L |
| 5 L/100km | 20 km/L |
| 6 L/100km | 16.67 km/L |
| 7 L/100km | 14.29 km/L |
| 8 L/100km | 12.50 km/L |
| 9 L/100km | 11.11 km/L |
| 10 L/100km | 10 km/L |
| 12 L/100km | 8.33 km/L |
| 15 L/100km | 6.67 km/L |
| 18 L/100km | 5.56 km/L |
| 20 L/100km | 5 km/L |
| 25 L/100km | 4 km/L |
How to convert L/100km to km/L
To convert L/100km to km/L, divide 100 by the L/100km value. Fuel economy is a reciprocal measure - a car that burns fewer liters per 100 km travels farther on each liter - so you divide instead of multiplying. For example, 8 L/100km = 100 / 8 = 12.50 km/L.
The constant 100 simply comes from the "per 100 km" basis of the first unit. The same constant works in both directions:
km/L = 100 / L/100km
L/100km = 100 / km/L
Example. A car rated at 5 L/100km does 100 / 5 = 20 km/L, while a thirstier 12 L/100km does 100 / 12 = 8.33 km/L.
When you need to convert L/100km to km/L
Drivers and buyers move between liters per 100 km and kilometers per liter whenever consumption-style and distance-style metric figures meet. Common cases:
- Reading a European car's L/100km rating as a distance-per-liter figure used in India or Japan.
- Comparing a spec sheet quoted in L/100km against a local market that lists km/L.
- Working out the km/L of a rental car abroad whose trip computer only shows L/100km.
- Translating a manufacturer's L/100km claim into km/L to compare two cars fairly.
- Budgeting fuel for a road trip when the brochure quotes liters per 100 km.
Frequently asked questions
How do I convert liters per 100 km to kilometers per liter?
Divide 100 by the L/100km figure. For example, 8 L/100km equals 100 / 8 = 12.50 km/L. The relationship is reciprocal, so a lower L/100km means a higher km/L.
What is 8 L/100km in km/L?
8 L/100km is 12.50 km/L, found by dividing 100 by 8. A car that uses 8 liters every 100 kilometers therefore travels 12.5 kilometers on each liter of fuel.
What is the L/100km to km/L formula?
The formula is km/L = 100 / L/100km. Because the two units are reciprocal measures of the same fuel use, you divide rather than multiply, and the same constant of 100 converts back the other way.
What is a good L/100km figure in km/L?
Around 5 to 6 L/100km, or about 16.67 to 20 km/L, is efficient for a modern petrol car. 8 L/100km is 12.50 km/L, while over 12 L/100km, under 8.33 km/L, is thirsty.
How do I convert km/L back to L/100km?
Divide 100 by the km/L value, or use our km/L to L/100km converter. For example, 15 km/L is 100 / 15 = 6.67 L/100km.
Is this the US or UK gallon?
Neither. Both liters per 100 km and kilometers per liter are fully metric units based on the liter, so no gallon is involved. Gallons only matter for MPG, where the US gallon is 3.785 liters and the UK (Imperial) gallon is 4.546 liters.
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