Convert Gigajoule per cubic metre to Watt-hour per cubic metre
Convert Gigajoule per cubic metre (GJ/m³) to Watt-hour per cubic metre (Wh/m³) instantly and accurately.
Conversion Formula
Wh/m³ = GJ/m³ × 277777.7778
About Gigajoule per cubic metre
The gigajoule per cubic metre (GJ/m³) equals exactly 10⁹ J/m³. Used for the energy density of high-energy-density materials and liquefied fuels: LNG ≈ 22.2 GJ/m³, liquid hydrogen ≈ 8.49 GJ/m³, petrol ≈ 34.2 GJ/m³. Also useful for large-scale thermal energy storage reservoirs. 1 GJ/m³ = 10³ MJ/m³ = 10⁹ J/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
| Gigajoule per cubic metre (GJ/m³) | Watt-hour per cubic metre (Wh/m³) |
|---|---|
| 1 GJ/m³ | 277778 Wh/m³ |
| 2 GJ/m³ | 555556 Wh/m³ |
| 5 GJ/m³ | 1388890 Wh/m³ |
| 10 GJ/m³ | 2777780 Wh/m³ |
| 25 GJ/m³ | 6944440 Wh/m³ |
| 50 GJ/m³ | 13888900 Wh/m³ |
| 100 GJ/m³ | 27777800 Wh/m³ |