joule to watt-hour
Live joule (J) to watt-hour (Wh) converter. Plus a 10-value reference table and FAQs.
换算表
10 个示例值，从joule到watt-hour。任意值请用上方换算器。
| joule (J) | → | watt-hour (Wh) |
|---|---|---|
| 0.001 J | → | 2.7778e-7 Wh |
| 0.01 J | → | 2.7778e-6 Wh |
| 0.1 J | → | 2.7778e-5 Wh |
| 0.5 J | → | 0.000139 Wh |
| 1 J | → | 0.000278 Wh |
| 2 J | → | 0.000556 Wh |
| 5 J | → | 0.001389 Wh |
| 10 J | → | 0.002778 Wh |
| 100 J | → | 0.027778 Wh |
| 1,000 J | → | 0.277778 Wh |
关于joule
SI unit of energy. 1 N·m.
关于watt-hour
1 W sustained for 1 hour (3600 J).
How joule to watt-hour conversion works
Both units belong to Energy. Unitbox first expresses the input in the category reference unit (J), then expresses that same quantity in watt-hour.
The right unit depends on the convention used by your industry, country, instrument, or source document.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
常见问题
Frequently Asked Questions
How do I convert joule to watt-hour?
Multiply the joule value by 0.000278 to get it in watt-hour. For example, 10 J = 0.0028 Wh.
What is 1 J in Wh?
1 J = 0.000278 Wh.
What is 100 J in Wh?
100 J = 0.0278 Wh.
What is the formula?
Linear: multiply by 0.000278 (the unit factor ratio).
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