Convert Watt-hour per kilogram kelvin to Joule per kilogram kelvin
Convert Watt-hour per kilogram kelvin (Wh/(kg·K)) to Joule per kilogram kelvin (J/(kg·K)) instantly and accurately.
Conversion Formula
J/(kg·K) = Wh/(kg·K) × 3600
About Watt-hour per kilogram kelvin
The watt-hour per kilogram kelvin (Wh/(kg·K)) equals exactly 3600 J/(kg·K). Used in battery and thermal energy storage engineering to express the heat capacity of phase-change materials (PCM), molten salts, and battery cells where energy is quantified in watt-hours. Paraffin wax ≈0.055 Wh/(kg·K). 1 Wh/(kg·K) = 3600 J/(kg·K) = 3.6 kJ/(kg·K).
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).
Quick Reference Table
| Watt-hour per kilogram kelvin (Wh/(kg·K)) | Joule per kilogram kelvin (J/(kg·K)) |
|---|---|
| 1 Wh/(kg·K) | 3600 J/(kg·K) |
| 2 Wh/(kg·K) | 7200 J/(kg·K) |
| 5 Wh/(kg·K) | 18000 J/(kg·K) |
| 10 Wh/(kg·K) | 36000 J/(kg·K) |
| 25 Wh/(kg·K) | 90000 J/(kg·K) |
| 50 Wh/(kg·K) | 180000 J/(kg·K) |
| 100 Wh/(kg·K) | 360000 J/(kg·K) |