Convert Kilojoule per cubic metre to Kilowatt-hour per cubic metre
Convert Kilojoule per cubic metre (kJ/m³) to Kilowatt-hour per cubic metre (kWh/m³) instantly and accurately.
Conversion Formula
kWh/m³ = kJ/m³ × 0.0002777777778
About Kilojoule per cubic metre
The kilojoule per cubic metre (kJ/m³) equals exactly 1000 J/m³. Common in gas industry and HVAC for expressing the volumetric heating value of fuel gases: natural gas ~35-38 MJ/m³, biogas ~20-25 MJ/m³, hydrogen ~10.8 MJ/m³ (standard conditions). 1 kJ/m³ = 1000 J/m³ = 1 Wh/(277.8 m³).
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
| Kilojoule per cubic metre (kJ/m³) | Kilowatt-hour per cubic metre (kWh/m³) |
|---|---|
| 1 kJ/m³ | 0.000277778 kWh/m³ |
| 2 kJ/m³ | 0.000555556 kWh/m³ |
| 5 kJ/m³ | 0.00138889 kWh/m³ |
| 10 kJ/m³ | 0.00277778 kWh/m³ |
| 25 kJ/m³ | 0.00694444 kWh/m³ |
| 50 kJ/m³ | 0.0138889 kWh/m³ |
| 100 kJ/m³ | 0.0277778 kWh/m³ |