Kilojoules to Watt Hours: 1 kJ equals 0.277778 Wh. To convert kilojoules to watt hours, multiply by 0.277778 (Wh = kJ × 0.277778). For example, 10 kJ = 2.777778 Wh.
How to Convert Kilojoules to Watt Hours
To convert from kilojoules to watt hours, multiply the value by 0.277778. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Kilojoules to Watt Hours:
Wh = kJ × 0.277778 - Watt Hours to Kilojoules:
kJ = Wh ÷ 0.277778
Kilojoules to Watt Hours Conversion Chart
| Kilojoules (kJ) | Watt Hours (Wh) |
|---|---|
| 0.1 | 0.027778 |
| 0.25 | 0.069444 |
| 0.5 | 0.138889 |
| 1 | 0.277778 |
| 2 | 0.555556 |
| 3 | 0.833333 |
| 5 | 1.388889 |
| 10 | 2.777778 |
| 20 | 5.555556 |
| 25 | 6.944444 |
| 50 | 13.888889 |
| 100 | 27.777778 |
| 250 | 69.444445 |
| 1000 | 277.77778 |
Understanding the Units
What is a Kilojoule?
A kilojoule equals 1,000 joules.
Common contexts: nutrition labeling (outside US), mechanical engineering.
What is a Watt Hour?
A watt-hour equals exactly 3,600 joules.
Common contexts: phone batteries, small device energy.