Kilojoules to Watt-hours Conversion
Enter the energy in kilojoules below to get the value converted to watt-hours.
How to Convert Kilojoules to Watt-hours
To convert a kilojoule measurement to a watt-hour measurement, multiply the energy by the conversion ratio. One kilojoule is equal to 0.277778 watt-hours, so use this simple formula to convert:
The energy in watt-hours is equal to the kilojoules multiplied by 0.277778.
Kilojoules and watt-hours are both units used to measure energy. Keep reading to learn more about each unit of measure.
Kilojoules
One kilojoule is equal to 1,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.
The kilojoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "kilo" is the prefix for 103. Kilojoules can be abbreviated as kJ, for example 1 kilojoule can be written as 1 kJ.
Watt-hours
The watt-hour is a measure of electrical energy equal to one watt of power over a one hour period.
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.[1]
Kilojoule to Watt-hour Conversion Table
| Kilojoules | Watt-hours |
|---|---|
| 1 kJ | 0.277778 Wh |
| 2 kJ | 0.555556 Wh |
| 3 kJ | 0.833333 Wh |
| 4 kJ | 1.1111 Wh |
| 5 kJ | 1.3889 Wh |
| 6 kJ | 1.6667 Wh |
| 7 kJ | 1.9444 Wh |
| 8 kJ | 2.2222 Wh |
| 9 kJ | 2.5 Wh |
| 10 kJ | 2.7778 Wh |
| 11 kJ | 3.0556 Wh |
| 12 kJ | 3.3333 Wh |
| 13 kJ | 3.6111 Wh |
| 14 kJ | 3.8889 Wh |
| 15 kJ | 4.1667 Wh |
| 16 kJ | 4.4444 Wh |
| 17 kJ | 4.7222 Wh |
| 18 kJ | 5 Wh |
| 19 kJ | 5.2778 Wh |
| 20 kJ | 5.5556 Wh |
| 21 kJ | 5.8333 Wh |
| 22 kJ | 6.1111 Wh |
| 23 kJ | 6.3889 Wh |
| 24 kJ | 6.6667 Wh |
| 25 kJ | 6.9444 Wh |
| 26 kJ | 7.2222 Wh |
| 27 kJ | 7.5 Wh |
| 28 kJ | 7.7778 Wh |
| 29 kJ | 8.0556 Wh |
| 30 kJ | 8.3333 Wh |
| 31 kJ | 8.6111 Wh |
| 32 kJ | 8.8889 Wh |
| 33 kJ | 9.1667 Wh |
| 34 kJ | 9.4444 Wh |
| 35 kJ | 9.7222 Wh |
| 36 kJ | 10 Wh |
| 37 kJ | 10.28 Wh |
| 38 kJ | 10.56 Wh |
| 39 kJ | 10.83 Wh |
| 40 kJ | 11.11 Wh |
References
- Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf
