Energy Converter
Result
... Kilojoule = ... Watt-hour
Result
... Kilojoule
=
... Watt-hour
Find the units to convert
Kilojoule to Watt-hour Converter
Use this page to convert kilojoule values into watt-hour, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 kJ = 0.277777777777778 Wh
1 Wh = 3.6 kJ
Example: 120 kJ = 33.3333333333333 Wh
Kilojoule
A kilojoule equals 1,000 joules.
History: It is a decimal multiple adopted for practical energy values.
Current use: Kilojoules are used in nutrition and industrial energy figures.
Also written as kJ, kilojoules.
Watt-hour
A watt-hour is the energy used by one watt over one hour.
History: It became practical with electrical metering and battery capacity descriptions.
Current use: Watt-hours are used for batteries, devices, solar systems, and electricity use.
Also written as Wh, watt hour, watt hours, watt-hours.
Kilojoule to Watt-hour table
| Kilojoule [kJ] | Watt-hour [Wh] |
|---|
| 0.01 kJ | 0.00277777777777778 Wh |
| 0.1 kJ | 0.0277777777777778 Wh |
| 1 kJ | 0.277777777777778 Wh |
| 2 kJ | 0.555555555555556 Wh |
| 5 kJ | 1.38888888888889 Wh |
| 10 kJ | 2.77777777777778 Wh |
| 20 kJ | 5.55555555555556 Wh |
| 50 kJ | 13.8888888888889 Wh |
| 100 kJ | 27.7777777777778 Wh |
Frequently asked questions
How many Watt-hour (Wh) are in one Kilojoule (kJ)?
One Kilojoule equals 0.277777777777778 Watt-hour.
How do you convert Kilojoule to Watt-hour?
Multiply the Kilojoule value by 0.277777777777778 to get the result in Watt-hour.
How do you convert Watt-hour back to Kilojoule?
Multiply the Watt-hour value by 3.6 to get back to Kilojoule.
What is 120 Kilojoule in Watt-hour?
120 Kilojoule equals 33.3333333333333 Watt-hour.
