Convert Kilojoule per cubic metre to Megawatt-hour per cubic metre
Convert Kilojoule per cubic metre (kJ/m³) to Megawatt-hour per cubic metre (MWh/m³) instantly and accurately.
Conversion Formula
MWh/m³ = kJ/m³ × 2.777777778e-7
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 Megawatt-hour per cubic metre
The megawatt-hour per cubic metre (MWh/m³) equals exactly 3.6 × 10⁹ J/m³. Used in large-scale energy storage infrastructure - pumped hydro, grid-scale battery installations, and thermal storage plants. Petrol ≈ 9.5 MWh/m³, LNG ≈ 6.2 MWh/m³, Li-ion pack ≈ 0.56 MWh/m³. 1 MWh/m³ = 3.6 GJ/m³ = 3600 MJ/m³.
Quick Reference Table
| Kilojoule per cubic metre (kJ/m³) | Megawatt-hour per cubic metre (MWh/m³) |
|---|---|
| 1 kJ/m³ | 2.778 × 10-7 MWh/m³ |
| 2 kJ/m³ | 5.556 × 10-7 MWh/m³ |
| 5 kJ/m³ | 1.389 × 10-6 MWh/m³ |
| 10 kJ/m³ | 2.778 × 10-6 MWh/m³ |
| 25 kJ/m³ | 6.944 × 10-6 MWh/m³ |
| 50 kJ/m³ | 1.389 × 10-5 MWh/m³ |
| 100 kJ/m³ | 2.778 × 10-5 MWh/m³ |