Kilowatt-hours to Joules
Convert Kilowatt-hours to Joules with an exact factor. One kilowatt-hour equals 3,600,000 Joules.
Result3,600,000
How to convert Kilowatt-hours to Joules
The converter above changes Kilowatt-hours into Joules instantly. As a reference point, one kilowatt-hour corresponds to 3,600,000 Joules, and one joule corresponds to 0.00000028 Kilowatt-hours. Use the table below for common values.
Kilowatt-hours × 3,600,000 = Joules
For example, 5 Kilowatt-hours = 18,000,000 Joules.
About the units
- Kilowatt-hours (kWh) — A kilowatt-hour, 3.6 million joules; the electricity billing unit.
- Joules (J) — The SI unit of energy.
Kilowatt-hours to Joules conversion table
| Kilowatt-hours | Joules |
|---|---|
| 1 kWh | 3,600,000 J |
| 2 kWh | 7,200,000 J |
| 3 kWh | 10,800,000 J |
| 5 kWh | 18,000,000 J |
| 10 kWh | 36,000,000 J |
| 20 kWh | 72,000,000 J |
| 25 kWh | 90,000,000 J |
| 50 kWh | 180,000,000 J |
| 100 kWh | 360,000,000 J |
| 250 kWh | 900,000,000 J |
| 500 kWh | 1,800,000,000 J |
| 1,000 kWh | 3,600,000,000 J |
Joules to Kilowatt-hours conversion table
| Joules | Kilowatt-hours |
|---|---|
| 1 J | 0.00000028 kWh |
| 2 J | 0.00000056 kWh |
| 3 J | 0.00000083 kWh |
| 5 J | 0.00000139 kWh |
| 10 J | 0.00000278 kWh |
| 20 J | 0.00000556 kWh |
| 25 J | 0.00000694 kWh |
| 50 J | 0.00001389 kWh |
| 100 J | 0.00002778 kWh |
| 250 J | 0.00006944 kWh |
| 500 J | 0.00013889 kWh |
| 1,000 J | 0.00027778 kWh |
Frequently asked questions
How many Joules is one kilowatt-hour?
One kilowatt-hour is 3,600,000 Joules.
Are these energy conversions accurate?
Yes. They use the exact standard unit definitions, so results are accurate to the number of decimals shown.
What is the formula to convert Kilowatt-hours to Joules?
Multiply the number of Kilowatt-hours by 3,600,000. To convert back, multiply Joules by 0.00000028.
This tool is provided for general information only. Verify important figures independently. · Last reviewed: August 25, 2026