Liters per kilometer fuel economy unit.
Liters per kilometer to Kilometers per liter Converter — L/km to km/L
Convert Liters per kilometer (L/km) to Kilometers per liter (km/L) using the exact conversion factor (1 liters per kilometer = 1 kilometers per liter). See the formula, worked examples, conversion table, history, and common uses.
Liters per kilometer to Kilometers per liter 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.
Kilometers per liter 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 Liters per kilometer to Kilometers per liter
Liters per kilometer and Kilometers per liter 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. Specifically: Liters per kilometer fuel economy unit, and kilometers per liter fuel economy unit.
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 L/km × 1e-12 = 1 km/L
1 liters per kilometer = 1 kilometers per liter.
Real-world example
30 L/km × 1e-12 = 0.0333333333 km/L
30 liters per kilometer = 0.0333333333 kilometers per liter.
Conversion table
| Liters per kilometer (L/km) | Kilometers per liter (km/L) |
|---|---|
| 10 L/km | 0.1 km/L |
| 20 L/km | 0.05 km/L |
| 30 L/km | 0.0333333333 km/L |
| 40 L/km | 0.025 km/L |
| 50 L/km | 0.02 km/L |
| 60 L/km | 0.0166666667 km/L |
Reverse conversion: Kilometers per liter to Liters per kilometer
1 km/L × 1e+12 = 1 L/km
1 kilometers per liter = 1 liters per kilometer.
Fuel economy formulas invert between distance-per-volume and volume-per-distance units as needed.
For a page dedicated to this direction, see Kilometers per liter to Liters per kilometer.
Understanding the Liters per kilometer (L/km)
Liters per kilometer fuel economy unit.
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.
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 kilometers per liter are in 1 liters per kilometer?
1 liters per kilometer equals 1 kilometers per liter, using the exact defined conversion factor rather than an estimate.
How do I convert liters per kilometer to kilometers per liter?
Fuel economy units sometimes need inversion rather than simple multiplication — the converter above and the formula section handle this automatically.
How do I convert kilometers per liter back to liters per kilometer?
Use the reverse factor: 1 kilometers per liter equals 1 liters per kilometer. You can also use the swap control in the converter above to flip the direction instantly.
What is a liters per kilometer?
Liters per kilometer (L/km) is a unit of fuel economy.
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.
Is the liters per kilometer to kilometers per liter conversion exact?
Yes. Both liters per kilometer and kilometers per liter 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.