Kilometers per liter fuel economy unit.
Kilometers per liter to Liters per kilometer Converter — km/L to L/km
Convert Kilometers per liter (km/L) to Liters per kilometer (L/km) using the exact conversion factor (1 kilometers per liter = 1 liters per kilometer). See the formula, worked examples, conversion table, history, and common uses.
Kilometers per liter to Liters per kilometer converter
Converter
Fuel Economy Converter
Convert MPG, km/L, L/100 km, and related transport fuel economy units.
Context values
Some unit families need one extra value for a physically accurate result.
Liters per kilometer fuel economy unit.
Normalize fuel economy to distance per volume, inverting consumption units when needed.
Fuel economy supports both distance-per-volume and volume-per-distance units.
Reserved above the conversion cards and below the converter.
About Converting Kilometers per liter to Liters per kilometer
Kilometers per liter and Liters per kilometer are two of the ways the world measures fuel efficiency, and converting between them is essential for comparing a US car's window-sticker rating to a European or Asian one. Kilometers per liter is most often used for vehicle fuel-economy specifications outside the us and much of europe.
Formula
Fuel economy formulas invert between distance-per-volume and volume-per-distance units as needed.
Efficiency-style units (like mpg or km/L) and consumption-style units (like L/100 km) measure the same underlying thing from opposite directions, so converting between the two families requires a reciprocal, not just a multiplication factor.
Simple example
1 km/L × 1e+12 = 1 L/km
1 kilometers per liter = 1 liters per kilometer.
Real-world example
30 km/L × 1e+12 = 0.0333333333 L/km
30 kilometers per liter = 0.0333333333 liters per kilometer.
Conversion table
| Kilometers per liter (km/L) | Liters per kilometer (L/km) |
|---|---|
| 10 km/L | 0.1 L/km |
| 20 km/L | 0.05 L/km |
| 30 km/L | 0.0333333333 L/km |
| 40 km/L | 0.025 L/km |
| 50 km/L | 0.02 L/km |
| 60 km/L | 0.0166666667 L/km |
Reverse conversion: Liters per kilometer to Kilometers per liter
1 L/km × 1e-12 = 1 km/L
1 liters per kilometer = 1 kilometers per liter.
Fuel economy formulas invert between distance-per-volume and volume-per-distance units as needed.
For a page dedicated to this direction, see Liters per kilometer to Kilometers per liter.
Understanding the Kilometers per liter
Kilometers per liter (km/L) measures fuel economy. Kilometers per liter measures distance traveled per liter of fuel — higher values mean better efficiency, the metric-world counterpart to mpg. It is classified as a Metric unit.
Where it's used: Used in much of Asia and parts of Europe and Latin America for fuel-economy reporting
Uses of the Kilometers per liter today
- Vehicle fuel-economy specifications outside the US and much of Europe
- Motorcycle and small-vehicle efficiency ratings (common in Asian markets)
History of the Kilometers per liter
Km/L is a straightforward metric analog to mpg, following naturally once countries adopted the metric system for both distance and volume; it remains common in markets (e.g. Japan, India, Southeast Asia) where consumers are used to thinking in an 'efficiency' (distance-per-volume) framing rather than 'consumption' (volume-per-distance).
Historical origin. Kilometers per liter was not the invention of a single named person; it developed through the process described above.
Understanding the Liters per kilometer (L/km)
Liters per kilometer fuel economy unit.
Kilometers per liter — sources
- NIST Special Publication 811 — General reference for metric unit conventions.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liters per kilometer are in 1 kilometers per liter?
1 kilometers per liter equals 1 liters per kilometer, using the exact defined conversion factor rather than an estimate.
How do I convert kilometers per liter to liters per kilometer?
Fuel economy units sometimes need inversion rather than simple multiplication — the converter above and the formula section handle this automatically.
How do I convert liters per kilometer back to kilometers per liter?
Use the reverse factor: 1 liters per kilometer equals 1 kilometers per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilometers per liter?
Kilometers per liter (km/L) measures fuel economy. Kilometers per liter measures distance traveled per liter of fuel — higher values mean better efficiency, the metric-world counterpart to mpg. It is classified as a Metric unit.
What is a liters per kilometer?
Liters per kilometer (L/km) is a unit of fuel economy.
Is the kilometers per liter to liters per kilometer conversion exact?
Yes. Both kilometers per liter and liters per kilometer are defined by fixed standards rather than physical artifacts, so the factor of 1e+12 used above is exact to as many digits as you choose to display.
Where is the kilometers per liter still used today?
Used in much of Asia and parts of Europe and Latin America for fuel-economy reporting