watt-hour to kilojoule
Live watt-hour (Wh) to kilojoule (kJ) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from watt-hour to kilojoule. Use the converter above for arbitrary values.
| watt-hour (Wh) | → | kilojoule (kJ) |
|---|---|---|
| 0.001 Wh | → | 0.0036 kJ |
| 0.01 Wh | → | 0.036 kJ |
| 0.1 Wh | → | 0.36 kJ |
| 0.5 Wh | → | 1.8 kJ |
| 1 Wh | → | 3.6 kJ |
| 2 Wh | → | 7.2 kJ |
| 5 Wh | → | 18 kJ |
| 10 Wh | → | 36 kJ |
| 100 Wh | → | 360 kJ |
| 1,000 Wh | → | 3,600 kJ |
About the watt-hour
1 W sustained for 1 hour (3600 J).
About the kilojoule
1000 J. Food labels in some countries.
How watt-hour to kilojoule conversion works
Both units belong to Energy. Unitbox first expresses the input in the category reference unit (J), then expresses that same quantity in kilojoule.
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.
Frequently asked questions
Frequently Asked Questions
How do I convert watt-hour to kilojoule?
Multiply the watt-hour value by 3.6 to get it in kilojoule. For example, 10 Wh = 36 kJ.
What is 1 Wh in kJ?
1 Wh = 3.6 kJ.
What is 100 Wh in kJ?
100 Wh = 360 kJ.
What is the formula?
Linear: multiply by 3.6 (the unit factor ratio).
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