Watt Hours to Kilojoules: 1 Wh equals 3.6 kJ. To convert watt hours to kilojoules, multiply by 3.6 (kJ = Wh × 3.6). For example, 10 Wh = 36 kJ.
How to Convert Watt Hours to Kilojoules
To convert from watt hours to kilojoules, multiply the value by 3.6. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Watt Hours to Kilojoules:
kJ = Wh × 3.6 - Kilojoules to Watt Hours:
Wh = kJ ÷ 3.6
Watt Hours to Kilojoules Conversion Chart
| Watt Hours (Wh) | Kilojoules (kJ) |
|---|---|
| 0.1 | 0.36 |
| 0.25 | 0.9 |
| 0.5 | 1.8 |
| 1 | 3.6 |
| 2 | 7.2 |
| 3 | 10.8 |
| 5 | 18 |
| 10 | 36 |
| 20 | 72 |
| 25 | 90 |
| 50 | 180 |
| 100 | 360 |
| 250 | 900 |
| 1000 | 3600 |
Understanding the Units
What is a Watt Hour?
A watt-hour equals exactly 3,600 joules.
Common contexts: phone batteries, small device energy.
What is a Kilojoule?
A kilojoule equals 1,000 joules.
Common contexts: nutrition labeling (outside US), mechanical engineering.