Common Converters

Joule (J) to Watt-hour (Wh) Converter

Convert joule to watt-hour units quickly and accurately.

About converting Joule to Watt-hour

The joule is the SI unit of energy and represents the work done by one newton acting through one meter. A watt-hour measures energy based on power used over time and is useful for batteries and smaller electrical loads. For this direction, one Joule is equal to 0.000277777778 Watt-hour. This conversion involves units that represent energy in different reporting systems. The conversion can clarify electricity use, food energy, heating output, fuel data, and scientific calculations.

Joule to Watt-hour formula

To convert from Joule to Watt-hour, multiply the starting value by 0.00027777777777778. This factor expresses how one Joule relates to the selected Watt-hour unit.

Worked Joule to Watt-hour examples

The following examples apply the exact factor for this direction: 1 J = 0.0002777778 Wh; 10 J = 0.0027777778 Wh; 100 J = 0.0277777778 Wh.