1 kilowatt hour to kilojoules
1 kWh = 3,600 kJ. Change the amount below, or read the formula and the reference table further down.
1 kilowatt hour equals
kilojoules
1 kWh = 3,600 kJ
The formula
Kilowatt hours and kilojoules both measure energy from the same zero, so a single multiplier does the job.
kJ = kWh × 3,600
Going the other way? Convert kilojoules to kilowatt hours.
Kilowatt hours to kilojoules table
Values either side of 1 kWh.
| Kilowatt hours (kWh) | Kilojoules (kJ) |
|---|---|
| -4 | -14,400 |
| -3.5 | -12,600 |
| -3 | -10,800 |
| -2.5 | -9,000 |
| -2 | -7,200 |
| -1.5 | -5,400 |
| -1 | -3,600 |
| -0.5 | -1,800 |
| 0 | 0 |
| 0.5 | 1,800 |
| 1 | 3,600 |
| 1.5 | 5,400 |
| 2 | 7,200 |
| 2.5 | 9,000 |
| 3 | 10,800 |
| 3.5 | 12,600 |
| 4 | 14,400 |
| 4.5 | 16,200 |
| 5 | 18,000 |
| 5.5 | 19,800 |
| 6 | 21,600 |
Questions people ask
- How many kilojoules are in a kilowatt hour?
- One kilowatt hour equals 3,600 kilojoules.
- How do I convert kilowatt hours to kilojoules by hand?
- Multiply the number of kilowatt hours by 3,600. For a rough check, 3,600 is close enough for most everyday use.
- What is 1 kilowatt hour in kilojoules?
- 1 kilowatt hour is 3,600 kilojoules.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.