Kilojoules per kelvin to watt-hours per kelvin
Type a value in kJ/K to get it in Wh/K instantly.
2.778Wh/K
That's 1.41× as much heat capacity as a full kettle, while a person is 25× more. Warming it by 10 °C takes about 0.02778 kWh.
Convert the other way: Wh/K to kJ/K
What it means
How much heat does it hold?
Examples are water-filled unless stated: water takes 4,184 J to warm a kilogram by one degree. A person is taken as 70 kg.
The math
How to convert kJ/K to Wh/K
To convert kilojoules per kelvin to watt-hours per kelvin, multiply by 0.277778.
Example: 10 kJ/K × 0.277778 = 2.77778 Wh/K.
In the other direction, 1 Wh/K = 3.6 kJ/K.
Every unit
Your heat capacity in every unit
Tables
kJ/K to Wh/K conversion table
| kJ/K | Wh/K |
|---|---|
| 0.5 kJ/K | 0.138889 Wh/K |
| 1 kJ/K | 0.277778 Wh/K |
| 2 kJ/K | 0.555556 Wh/K |
| 4.184 kJ/K | 1.16222 Wh/K |
| 10 kJ/K | 2.77778 Wh/K |
| 20 kJ/K | 5.55556 Wh/K |
| 50 kJ/K | 13.8889 Wh/K |
| 100 kJ/K | 27.7778 Wh/K |
| 250 kJ/K | 69.4444 Wh/K |
| 500 kJ/K | 138.889 Wh/K |
| 1,000 kJ/K | 277.778 Wh/K |
Wh/K to kJ/K conversion table
| Wh/K | kJ/K |
|---|---|
| 0.5 Wh/K | 1.8 kJ/K |
| 1 Wh/K | 3.6 kJ/K |
| 2 Wh/K | 7.2 kJ/K |
| 4.184 Wh/K | 15.0624 kJ/K |
| 10 Wh/K | 36 kJ/K |
| 20 Wh/K | 72 kJ/K |
| 50 Wh/K | 180 kJ/K |
| 100 Wh/K | 360 kJ/K |
| 250 Wh/K | 900 kJ/K |
| 500 Wh/K | 1,800 kJ/K |
| 1,000 Wh/K | 3,600 kJ/K |
Quick answers
Quick answers
- How many Wh/K is 1 kJ/K?
- 1 kJ/K is 0.277778 Wh/K.
- How many Wh/K is 10 kJ/K?
- 10 kJ/K is 2.77778 Wh/K.
The units
About these units
Kilojoules per kelvin (kJ/K)
A handier size for everyday objects.
Watt-hours per kelvin (Wh/K)
Useful with heaters rated in watts.
Keep going