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Watt-hour to Joule Converter

Convert Watt-hour to Joule instantly — live results with exact conversion factors.

3600 J

Answer

1 watt-hour = 3600 joules. To convert Wh to J, multiply by 3600.

Quick Reference Table

Watt-hour (Wh) Joule (J)
1 3600
2 7200
5 18000
10 36000
20 72000
50 180000
100 360000
250 900000
500 1800000
1000 3600000

Formula

Convert Watt-hour (Wh) to Joule (J) using the relationship: 

J = Wh × 3600

How to Convert

  1. Take the value in watt-hours (Wh).
  2. Multiply it by 3600 (the conversion factor from Wh to J).
  3. The result is the equivalent value in joules (J).
  4. Example: 1 Wh = 3600 J.

Reverse Conversion

Need it the other direction? Joule to Watt-hour conversion.

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FAQ

▸ How many joules are in 1 watt-hour?

1 Watt-hour equals 3600 joules. Multiply by 3600 to convert Wh to J.

▸ What is the formula to convert watt-hour to joule?

Multiply the value in watt-hours by 3600 to get joules. Formula: J = Wh × 3600.

▸ How do I convert watt-hours to joules easily?

Enter your value in the converter at the top of this page — the joules result updates live as you type. You can also multiply by 3600 directly.