Convert Joule per cubic metre to Kilowatt-hour per cubic metre
Convert Joule per cubic metre (J/m³) to Kilowatt-hour per cubic metre (kWh/m³) instantly and accurately.
Conversion Formula
kWh/m³ = J/m³ × 2.777777778e-7
About Joule per cubic metre
The joule per cubic metre (J/m³) is the SI coherent unit for energy density (and equivalently, pressure). It covers a wide range from gas combustion (natural gas ~38 MJ/m³) down to small reaction energies. Numerically equal to the pascal (Pa = N/m² = J/m³). Referenced in ISO 31-4. 1 J/m³ = 10⁻³ kJ/m³ = 1 Pa.
About Kilowatt-hour per cubic metre
The kilowatt-hour per cubic metre (kWh/m³) equals exactly 3.6 × 10⁶ J/m³. Widely used in battery technology and electrical energy storage: Li-ion cells ≈ 200-700 kWh/m³, pumped hydro ≈ 0.27-1.5 Wh/m³. Also used for volumetric electricity price comparisons. 1 kWh/m³ = 3.6 MJ/m³ = 3600 kJ/m³.
Quick Reference Table
| Joule per cubic metre (J/m³) | Kilowatt-hour per cubic metre (kWh/m³) |
|---|---|
| 1 J/m³ | 2.778 × 10-7 kWh/m³ |
| 2 J/m³ | 5.556 × 10-7 kWh/m³ |
| 5 J/m³ | 1.389 × 10-6 kWh/m³ |
| 10 J/m³ | 2.778 × 10-6 kWh/m³ |
| 25 J/m³ | 6.944 × 10-6 kWh/m³ |
| 50 J/m³ | 1.389 × 10-5 kWh/m³ |
| 100 J/m³ | 2.778 × 10-5 kWh/m³ |