Watt-hours to Joules
Convert watt-hours to joules for batteries, electricity use, energy storage, and one watt for one hour calculations.
How to convert Wh to J
To convert a value from watt-hours (Wh) to joules (J), enter the number in the converter above. Use the swap control if you need the reverse direction.
x is the source value in Wh; y is the result in J.
Popular conversions
Quick answers for common Wh to J values are available from the related conversion pages.
Use the related tools section for fixed-value conversions and the reverse direction.
Common conversion table
Quick reference table for common Wh to J values:
| Wh | J |
|---|---|
| 1 | 3,600 |
| 5 | 18,000 |
| 10 | 36,000 |
| 50 | 180,000 |
| 100 | 360,000 |
| 1,000 | 3,600,000 |
About watt-hours
Watt-hour (Wh) — One watt-hour is exactly 3,600 joules: one watt of power sustained for one hour.
Common uses: Watt-hours are used for batteries, electricity consumption, energy storage, portable electronics, and appliance energy estimates.
About joules
Joule (J) — The joule is the SI derived unit of energy. One joule is one watt-second.
Common uses: Joules are used in physics, chemistry, engineering, mechanics, heat energy, and SI energy specifications.
Frequently Asked Questions
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