Convert Kilojoule per cubic metre to Watt-hour per cubic metre
Convert Kilojoule per cubic metre (kJ/m³) to Watt-hour per cubic metre (Wh/m³) instantly and accurately.
Conversion Formula
Wh/m³ = kJ/m³ × 0.2777777778
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 Watt-hour per cubic metre
The watt-hour per cubic metre (Wh/m³) equals exactly 3600 J/m³. Convenient for energy storage systems - battery packs, flywheels, and compressed-air storage - where energy is usually expressed in watt-hours per physical volume. 1 Wh/m³ = 3600 J/m³ = 3.6 kJ/m³.
Quick Reference Table
| Kilojoule per cubic metre (kJ/m³) | Watt-hour per cubic metre (Wh/m³) |
|---|---|
| 1 kJ/m³ | 0.277778 Wh/m³ |
| 2 kJ/m³ | 0.555556 Wh/m³ |
| 5 kJ/m³ | 1.38889 Wh/m³ |
| 10 kJ/m³ | 2.77778 Wh/m³ |
| 25 kJ/m³ | 6.94444 Wh/m³ |
| 50 kJ/m³ | 13.8889 Wh/m³ |
| 100 kJ/m³ | 27.7778 Wh/m³ |