How many joules are in one watt-hour?
One watt-hour equals exactly 3,600 joules.
Converters
Joule to Watt-Hour Converter
Convert joules to watt-hours and watt-hours to joules instantly with formulas, examples, and FAQs.
Tool
Joule to Watt-Hour Converter
Convert joules to watt-hours and watt-hours to joules instantly with formulas, examples, and FAQs.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free online joule to watt-hour converter to quickly convert between joules (J) and watt-hours (Wh).
Conversion Formula
J → Wh
Wh = J × 0.0002777778
Wh → J
J = Wh × 3,600
Examples
- 3,600 J = 1 Wh
- 7,200 J = 2 Wh
- 10 Wh = 36,000 J
Frequently Asked Questions
How do you convert joules to watt-hours?
Divide the joule value by 3,600 or multiply it by 0.0002777778.
How do you convert watt-hours to joules?
Multiply the watt-hour value by 3,600.
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