Watt hour → Joule (Wh → J)

1 Wh = 3600 J
1 Watt hour (Wh) = 3600 Joule (J).

Watt hour (Wh):


Joule (J):

If you want to reverse convert, use Joule → Watt hour. 1 J = 0.00027777777777778 Wh. You can also explore the full Energy converter page for more cross conversions.

Conversion formula

Watt hour to Joule formula: value in J = value in Wh × 3600.

Joule to Watt hour formula: value in Wh = value in J × 0.00027777777777778.

How to convert Watt hour to Joule

To convert Watt hour to Joule, multiply the value in Wh by 3600. This gives the result in J.

For example, 1 Wh = 3600 J and 10 Wh = 36000 J.

What is Watt hour?

Watt hour (Wh): The energy used by a one-watt device running for one hour; common in battery specifications. 1 Wh = 1 W × 1 h = 3600 J.

What is Joule?

Joule (J): The SI energy unit connects mechanical work with electrical energy. 1 J = 1 N·m = 1 W·s.

FAQ

Watt hour → other Energy units

• 1 watt hour → joule = 3600 joule
• 1 watt hour → kilojoule = 3.6 kilojoule
• 1 watt hour → megajoule = 0.0036 megajoule
• 1 watt hour → calorie = 860.4206500956 calorie
• 1 watt hour → kilocalorie = 0.8604206500956 kilocalorie
• 1 watt hour → kilowatt hour = 0.001 kilowatt hour
• 1 watt hour = 1.0E-6 megawatt hour
• 1 watt hour → british thermal unit = 3.412128220196 british thermal unit
• 1 watt hour → foot pound = 2655.2197194318 foot pound
• 1 watt hour = 2.2469432668059E+16 mega electron volt
• 1 watt hour = 2.2469432668059E+22 electron volt

Watt hour → Joule Table

The table below shows common values from Watt hour to Joule and the reverse direction for quick reference.

Joule → Watt hour Table

Joule → Watt hour

The reverse value is 1 J = 0.00027777777777778 Wh.