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