How Many Joules in a Watt-hour?

Quick Answer
1 Watt-hour = 3,600 Joules

1 Wh = 3,600 J

Formula

J = Wh × 3,600

Conversion Table

Watt-hours (Wh)Joules (J)
1 Wh3,600 J
2 Wh7,200 J
5 Wh18,000 J
10 Wh36,000 J
20 Wh72,000 J
50 Wh180,000 J
100 Wh360,000 J
500 Wh1,800,000 J
1,000 Wh3,600,000 J

Worked Examples

Convert 5 Wh to J:
5 Wh × 3,600 = 18,000 J
Convert 10 Wh to J:
10 Wh × 3,600 = 36,000 J
Convert 50 Wh to J:
50 Wh × 3,600 = 180,000 J

FAQ

How many Joules are in 1 Watt-hour?
There are 3,600 Joules in 1 Watt-hour. Formula: J = Wh × 3,600.
How to convert Watt-hours to Joules?
To convert Watt-hours to Joules, multiply the number of Watt-hours by 3,600. For example, 10 Wh = 36,000 J.
How many Joules are in 100 Watt-hours?
There are 360,000 Joules in 100 Watt-hours. Calculation: 100 × 3,600 = 360,000.