Fuel Efficiency Volume / J/m³ → kWh/L
Convert Joules per cubic meter to Kilowatt-hours per liter
Convert energy per fuel volume and reciprocal volume per energy. Convert Joules per cubic meter (J/m³) to Kilowatt-hours per liter (kWh/L). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Kilowatt-hours per liter to Joules per cubic meter →
How to convert joules per cubic meter to kilowatt-hours per liter
This is volumetric energy content, not road fuel economy. A heating value needs a defined fuel composition and physical state. Liters per kWh is reciprocal to kWh per liter.
Use x for the value in J/m³, b for the intermediate value in J/m³, and y for the result in kWh/L.
kWh/L = J/m³ ÷ 3600000000
Worked examples
10 J/m³ ≈ 2.77777777778e-9 kWh/L
Step 1: (10 × 1) ≈ 10 J/m³.
Step 2: 10 ÷ 3600000000 ≈ 2.77777777778e-9 kWh/L.20 J/m³ ≈ 5.55555555556e-9 kWh/L
Step 1: (20 × 1) ≈ 20 J/m³.
Step 2: 20 ÷ 3600000000 ≈ 5.55555555556e-9 kWh/L.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Joules per cubic meter
Joules per cubic meter (J/m³) measures fuel efficiency volume under the conventions above. The base value in J/m³ is (x × 1), where x is the numerical value in J/m³. Factors shown here are rounded for display; calculations use the stored factor.
About Kilowatt-hours per liter
Kilowatt-hours per liter (kWh/L) measures fuel efficiency volume under the conventions above. The base value in J/m³ is (x × 3600000000), where x is the numerical value in kWh/L. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Joules per cubic meter to kilowatt-hours per liter reference table
| Joules per cubic meter (J/m³) | Kilowatt-hours per liter (kWh/L) |
|---|---|
| 1 | 2.77777777778e-10 |
| 5 | 1.38888888889e-9 |
| 10 | 2.77777777778e-9 |
| 25 | 6.94444444444e-9 |
| 50 | 1.38888888889e-8 |
| 100 | 2.77777777778e-8 |
| 1000 | 2.77777777778e-7 |
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