Convert Joule per kilogram kelvin to Kilowatt-hour per kilogram kelvin
Convert Joule per kilogram kelvin (J/(kg·K)) to Kilowatt-hour per kilogram kelvin (kWh/(kg·K)) instantly and accurately.
Conversion Formula
kWh/(kg·K) = J/(kg·K) × 2.777777778e-7
About Joule per kilogram kelvin
The joule per kilogram kelvin (J/(kg·K)) is the SI coherent unit for specific heat capacity, defined by the relation Q = mcΔT. Water ≈4182, iron ≈449, aluminium ≈897, copper ≈385, glass ≈840 J/(kg·K). Referenced in ISO 31-4 and all major international standards. 1 J/(kg·K) = 1 J/(kg·°C) = 10⁻³ kJ/(kg·K).
About Kilowatt-hour per kilogram kelvin
The kilowatt-hour per kilogram kelvin (kWh/(kg·K)) equals exactly 3.6 × 10⁶ J/(kg·K). Used in large-scale thermal energy storage design - molten salt storage, geothermal reservoirs, and industrial heat banks - where energy is measured in megawatt-hours. 1 kWh/(kg·K) = 3.6 MJ/(kg·K) = 1000 Wh/(kg·K) = 3.6 × 10⁶ J/(kg·K).
Quick Reference Table
| Joule per kilogram kelvin (J/(kg·K)) | Kilowatt-hour per kilogram kelvin (kWh/(kg·K)) |
|---|---|
| 1 J/(kg·K) | 2.778 × 10-7 kWh/(kg·K) |
| 2 J/(kg·K) | 5.556 × 10-7 kWh/(kg·K) |
| 5 J/(kg·K) | 1.389 × 10-6 kWh/(kg·K) |
| 10 J/(kg·K) | 2.778 × 10-6 kWh/(kg·K) |
| 25 J/(kg·K) | 6.944 × 10-6 kWh/(kg·K) |
| 50 J/(kg·K) | 1.389 × 10-5 kWh/(kg·K) |
| 100 J/(kg·K) | 2.778 × 10-5 kWh/(kg·K) |