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1 wh to j

Updated July 2026

1 wh equals 3,600 J

1 watt-hour = 3,600 J. That is how many joules there are in 1 watt-hour. Enter any value in the free energy converter to convert watt-hours to joules (and every other unit) instantly — it runs privately in your browser.

Formula: Multiply by 3,600 — 1 watt-hour = 3,600 joules. So 1 × 3,600 = 3,600 J.

wh to j conversion table

watt-hour (Wh)joules (J)
0.25 Wh900 J
0.5 Wh1,800 J
0.75 Wh2,700 J
1 Wh3,600 J
1.25 Wh4,500 J
1.5 Wh5,400 J
1.75 Wh6,300 J

Frequently asked questions

How many joules is 1 watt-hour?
1 watt-hour is 3,600 joules. Multiply wh by 3,600 to get j.
What is 1 wh to j?
1 watt-hour = 3,600 J.
How do you convert wh to j?
Multiply by 3,600 — 1 watt-hour = 3,600 joules. So 1 × 3,600 = 3,600 J.

Other wh to j conversions

Convert 1 wh to other units