Watt-hours to Joules Conversion
Enter the energy in watt-hours below to get the value converted to joules.
How to Convert Watt-hours to Joules
To convert a watt-hour measurement to a joule measurement, multiply the energy by the conversion ratio.
Since one watt-hour is equal to 3,600 joules, you can use this simple formula to convert:
The energy in joules is equal to the watt-hours multiplied by 3,600.
How Many Joules Are in a Watt-hour?
There are 3,600 joules in a watt-hour, which is why we use this value in the formula above.
1 Wh = 3,600 J
Watt-hours and joules are both units used to measure energy. Keep reading to learn more about each unit of measure.
Watt-hours are usually abbreviated as Wh, although the formally adopted expression is W·h. The abbreviation W h is also sometimes used. For example, 1 watt-hour can be written as 1 Wh, 1 W·h, or 1 W h.
In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.
The joule is the energy equal to the force on an object of one newton at a distance of one meter. One joule is equal to the heat energy dissipated by the current of one ampere through one ohm of resistance for one second.
The joule is the SI derived unit for energy in the metric system. Joules can be abbreviated as J; for example, 1 joule can be written as 1 J.
Watt-hour to Joule Conversion Table
|0.001 Wh||3.6 J|
|0.002 Wh||7.2 J|
|0.003 Wh||10.8 J|
|0.004 Wh||14.4 J|
|0.005 Wh||18 J|
|0.006 Wh||21.6 J|
|0.007 Wh||25.2 J|
|0.008 Wh||28.8 J|
|0.009 Wh||32.4 J|
|0.01 Wh||36 J|
|0.02 Wh||72 J|
|0.03 Wh||108 J|
|0.04 Wh||144 J|
|0.05 Wh||180 J|
|0.06 Wh||216 J|
|0.07 Wh||252 J|
|0.08 Wh||288 J|
|0.09 Wh||324 J|
|0.1 Wh||360 J|
|0.2 Wh||720 J|
|0.3 Wh||1,080 J|
|0.4 Wh||1,440 J|
|0.5 Wh||1,800 J|
|0.6 Wh||2,160 J|
|0.7 Wh||2,520 J|
|0.8 Wh||2,880 J|
|0.9 Wh||3,240 J|
|1 Wh||3,600 J|
- Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf
- International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf