Kilowatt-hours to Kilojoules
Convert Kilowatt-hours to Kilojoules with an exact factor. One kilowatt-hour equals 3,600 Kilojoules.
Result3,600
How to convert Kilowatt-hours to Kilojoules
The converter above changes Kilowatt-hours into Kilojoules instantly. As a reference point, one kilowatt-hour corresponds to 3,600 Kilojoules, and one kilojoule corresponds to 0.00027778 Kilowatt-hours. Use the table below for common values.
Kilowatt-hours × 3,600 = Kilojoules
For example, 5 Kilowatt-hours = 18,000 Kilojoules.
About the units
- Kilowatt-hours (kWh) — A kilowatt-hour, 3.6 million joules; the electricity billing unit.
- Kilojoules (kJ) — One thousand joules.
Kilowatt-hours to Kilojoules conversion table
| Kilowatt-hours | Kilojoules |
|---|---|
| 1 kWh | 3,600 kJ |
| 2 kWh | 7,200 kJ |
| 3 kWh | 10,800 kJ |
| 5 kWh | 18,000 kJ |
| 10 kWh | 36,000 kJ |
| 20 kWh | 72,000 kJ |
| 25 kWh | 90,000 kJ |
| 50 kWh | 180,000 kJ |
| 100 kWh | 360,000 kJ |
| 250 kWh | 900,000 kJ |
| 500 kWh | 1,800,000 kJ |
| 1,000 kWh | 3,600,000 kJ |
Kilojoules to Kilowatt-hours conversion table
| Kilojoules | Kilowatt-hours |
|---|---|
| 1 kJ | 0.00027778 kWh |
| 2 kJ | 0.00055556 kWh |
| 3 kJ | 0.00083333 kWh |
| 5 kJ | 0.00138889 kWh |
| 10 kJ | 0.00277778 kWh |
| 20 kJ | 0.00555556 kWh |
| 25 kJ | 0.00694444 kWh |
| 50 kJ | 0.01388889 kWh |
| 100 kJ | 0.02777778 kWh |
| 250 kJ | 0.06944444 kWh |
| 500 kJ | 0.13888889 kWh |
| 1,000 kJ | 0.27777778 kWh |
Frequently asked questions
How many Kilojoules is one kilowatt-hour?
One kilowatt-hour is 3,600 Kilojoules.
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 Kilojoules?
Multiply the number of Kilowatt-hours by 3,600. To convert back, multiply Kilojoules by 0.00027778.
This tool is provided for general information only. Verify important figures independently. · Last reviewed: August 25, 2026