1 kilowatt hour = 3.60000e+06 joules
Convert kilowatt hours to joules.
Both directions on one page — swap the units and the whole thing runs backwards.
Type a value, or “5cm to in”
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The formula
J = kWh × 3.60000e+06
Worked through with a real value: 10 kilowatt hours = 3.60000e+07 joules.
Going the other way: kWh = J × 2.77778e-07, so 1 joule = 2.77778e-07 kilowatt hours.
What each unit is
- kilowatt hour kWh
- A thousand watt-hours, or 3.6 megajoules. The standard unit for household and industrial electricity consumption.
- joule J
- The SI unit of energy, equal to the work done by a force of one newton acting over a distance of one metre.
Where these come from
- 1 kilowatt hour = 3600000 joules
Every other number on this page is computed from those, and each category is pinned to conversions worked out by hand from the units' primary definitions before it ships.
Conversion tables
| kilowatt hours (kWh) | joules (J) |
|---|---|
| 1 | 3.60000e+06 |
| 2 | 7.20000e+06 |
| 3 | 1.08000e+07 |
| 4 | 1.44000e+07 |
| 5 | 1.80000e+07 |
| 6 | 2.16000e+07 |
| 7 | 2.52000e+07 |
| 8 | 2.88000e+07 |
| 9 | 3.24000e+07 |
| 10 | 3.60000e+07 |
| 20 | 7.20000e+07 |
| 25 | 9.00000e+07 |
| 50 | 1.80000e+08 |
| 75 | 2.70000e+08 |
| 100 | 3.60000e+08 |
| joules (J) | kilowatt hours (kWh) |
|---|---|
| 1 | 2.77778e-07 |
| 2 | 5.55556e-07 |
| 3 | 8.33333e-07 |
| 4 | 1.11111e-06 |
| 5 | 1.38889e-06 |
| 6 | 1.66667e-06 |
| 7 | 1.94444e-06 |
| 8 | 2.22222e-06 |
| 9 | 2.50000e-06 |
| 10 | 2.77778e-06 |
| 20 | 5.55556e-06 |
| 25 | 6.94444e-06 |
| 50 | 1.38889e-05 |
| 75 | 2.08333e-05 |
| 100 | 2.77778e-05 |
Questions
How many joules are in a kilowatt hour?
1 kilowatt hour = 3.60000e+06 joules.
How do I convert kilowatt hours to joules?
Use J = kWh × 3.60000e+06. For example, 10 kilowatt hours = 3.60000e+07 joules.
How many kilowatt hours are in one joule?
1 joule = 2.77778e-07 kilowatt hours.
What is 10 kilowatt hours in joules?
10 kilowatt hours = 3.60000e+07 joules.
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