Convert joule (J) to watt hour (Wh).
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Watt Hour to Joule Converter (Wh to J)
Convert watt hour (Wh) to joule (J).Unit Converter · Energy
Quick answer
1 watt hour (Wh) is equal to 3,600 joules (J). 1 joule (J) is approximately equal to 0.00027778 watt hours (Wh).
To convert Wh to J, multiply the value in watt hours by 3,600. For example, 10 Wh = 36,000 J, and 100 Wh = 3,60,000 J.
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How to convert watt hours to joules
How many joules are in a watt hour? 1 watt hour is 3,600 joules. This free Wh to J converter and watt hour to joule calculator gives the answer instantly for any value.
To convert watt hour (Wh) to joule (J), multiply the value in watt hours by 3,600.
J = Wh × 3,600
- 1
Take the value in watt hours
For example, 25 Wh.
- 2
Multiply by 3,600
25 × 3,600.
- 3
Read the answer in joules
25 Wh = 90,000 J.
Watt Hour to Joule conversion table
Common values from 1 to 1,000 watt hours converted to joules.
| Watt Hour (Wh) | Joule (J) |
|---|---|
| 1 Wh | 3,600 J |
| 2 Wh | 7,200 J |
| 3 Wh | 10,800 J |
| 4 Wh | 14,400 J |
| 5 Wh | 18,000 J |
| 6 Wh | 21,600 J |
| 7 Wh | 25,200 J |
| 8 Wh | 28,800 J |
| 9 Wh | 32,400 J |
| 10 Wh | 36,000 J |
| 15 Wh | 54,000 J |
| 20 Wh | 72,000 J |
| 25 Wh | 90,000 J |
| Watt Hour (Wh) | Joule (J) |
|---|---|
| 30 Wh | 1,08,000 J |
| 40 Wh | 1,44,000 J |
| 50 Wh | 1,80,000 J |
| 60 Wh | 2,16,000 J |
| 70 Wh | 2,52,000 J |
| 75 Wh | 2,70,000 J |
| 80 Wh | 2,88,000 J |
| 90 Wh | 3,24,000 J |
| 100 Wh | 3,60,000 J |
| 250 Wh | 9,00,000 J |
| 500 Wh | 18,00,000 J |
| 1,000 Wh | 36,00,000 J |
About watt hours and joules
Watt Hour (Wh)
A watt-hour (Wh) is the energy of one watt used for one hour, equal to 3,600 joules. Battery capacities are often given in Wh.
Joule (J)
The joule (J) is the SI unit of energy: the work done by a force of one newton over one meter. One watt is one joule per second.
Wh to J: common questions
- How many joules are in 1 watt hour?
- 1 watt hour (Wh) is equal to 3,600 joules (J). In short: 1 Wh = 3,600 J.
- How do I convert watt hours to joules?
- To convert Wh to J, multiply the value in watt hours by 3,600. For example, 5 Wh = 18,000 J.
- How do I convert joules to watt hours?
- To convert J to Wh, divide the value in joules by 3,600. Or open the Joule to Watt Hour converter, which does it for you.
- What is 10 Wh in J, and what is 100 Wh?
- 10 Wh = 36,000 J, and 100 Wh = 3,60,000 J. The table above lists more values from 1 to 1,000.
- Is this Wh to J converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
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