Convert Megajoule per cubic metre to Kilowatt-hour per cubic metre
Convert Megajoule per cubic metre (MJ/m³) to Kilowatt-hour per cubic metre (kWh/m³) instantly and accurately.
Conversion Formula
kWh/m³ = MJ/m³ × 0.2777777778
About Megajoule per cubic metre
The megajoule per cubic metre (MJ/m³) equals exactly 10⁶ J/m³. The practical SI unit for fuel energy density: natural gas ≈ 35-40 MJ/m³, hydrogen (liquid) ≈ 8490 MJ/m³, diesel ≈ 34,200 MJ/m³. Numerically equal to kJ/L and widely used in fuel standards and energy audits. 1 MJ/m³ = 10⁶ J/m³ = 1 kJ/L.
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
| Megajoule per cubic metre (MJ/m³) | Kilowatt-hour per cubic metre (kWh/m³) |
|---|---|
| 1 MJ/m³ | 0.277778 kWh/m³ |
| 2 MJ/m³ | 0.555556 kWh/m³ |
| 5 MJ/m³ | 1.38889 kWh/m³ |
| 10 MJ/m³ | 2.77778 kWh/m³ |
| 25 MJ/m³ | 6.94444 kWh/m³ |
| 50 MJ/m³ | 13.8889 kWh/m³ |
| 100 MJ/m³ | 27.7778 kWh/m³ |