Joules to Watt Hours Converter

Instantly convert Joules (J) to Watt Hours (Wh). Free online converter with formula and table.

J
Wh
1 J = 0.0002777778 Wh
1 Joule = 0.0002777778 watt hours
1 Watt Hour = 3,600 joules

Joules to Watt Hours Conversion Table

Joules (J)Watt Hours (Wh)
1,0000.277778
5,0001.3889
10,0002.7778
50,00013.8889
100,00027.7778
500,000138.8889
1,000,000277.7778

How to Convert Joules to Watt Hours

Wh = J × 0.0002777778

Example

Convert 10 joules to watt hours:

10 J × 0.0002777778 = 0.0027777778 Wh

About These Units

Frequently Asked Questions

How many Watt Hours are in a Joule?

There are 0.0002777778 Watt Hours in one Joule.

How do I convert Joules to Watt Hours?

To convert Joules to Watt Hours, multiply the value in Joules by 0.0002777778. For example, 10 Joules = 10 × 0.0002777778 = 0.0027777778 Watt Hours.

What is the formula to convert Joules to Watt Hours?

The formula is: Watt Hours (Wh) = Joules (J) × 0.0002777778

How do I convert Watt Hours back to Joules?

To convert Watt Hours to Joules, multiply by 3,600 (or divide by 0.0002777778).