ENERGY CONVERSION
Watt-hour to Joule.
Convert watt-hour (Wh) to joule (J), with the math explained.
THE MATH, MADE SIMPLE
How to convert watt-hour to joule
Multiply your watt-hour value by 3,600 to get the equivalent in joule. Both units are normalized through the joule.
J = Wh × 3,60010 Wh = 36,000 J
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
Wh to J conversion table
| Watt-hour (Wh) | Joule (J) |
|---|---|
| 1 Wh | 3,600 J |
| 2 Wh | 7,200 J |
| 5 Wh | 18,000 J |
| 10 Wh | 36,000 J |
| 20 Wh | 72,000 J |
| 50 Wh | 180,000 J |
| 100 Wh | 360,000 J |
| 500 Wh | 1,800,000 J |
| 1,000 Wh | 3,600,000 J |
About the watt-hour
The watt-hour (Wh) is a unit of energy. One watt-hour equals 3,600 joule (base unit) in this calculator.
All watt-hour conversionsAbout the joule
The joule (J) is a unit of energy. One joule equals 1 joule (base unit) in this calculator.
All joule conversionsCommon questions
What is 1 Wh in J?
One watt-hour equals 3,600 J. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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