kWh to kJ converter
1 kilowatt-hour equals 3,600 kilojoules. Conversions use kJ = kWh × 3600
kWh → 3,600 kJ
kJ = kWh × 3600
Converter
Worked examples
- 1 kWh = 3,600 kJ
- 2 kWh = 7,200 kJ
- 5 kWh = 18,000 kJ
- 10 kWh = 36,000 kJ
- 100 kWh = 360,000 kJ
kilowatt-hours to kilojoules conversion table
| kWh | kJ | Arithmetic |
|---|---|---|
| 1 kWh | 3,600 kJ | × 3600 |
| 2 kWh | 7,200 kJ | × 3600 |
| 3 kWh | 10,800 kJ | × 3600 |
| 4 kWh | 14,400 kJ | × 3600 |
| 5 kWh | 18,000 kJ | × 3600 |
| 6 kWh | 21,600 kJ | × 3600 |
| 8 kWh | 28,800 kJ | × 3600 |
| 10 kWh | 36,000 kJ | × 3600 |
| 12 kWh | 43,200 kJ | × 3600 |
| 15 kWh | 54,000 kJ | × 3600 |
| 20 kWh | 72,000 kJ | × 3600 |
| 25 kWh | 90,000 kJ | × 3600 |
| 30 kWh | 108,000 kJ | × 3600 |
| 40 kWh | 144,000 kJ | × 3600 |
| 50 kWh | 180,000 kJ | × 3600 |
| 60 kWh | 216,000 kJ | × 3600 |
| 70 kWh | 252,000 kJ | × 3600 |
| 80 kWh | 288,000 kJ | × 3600 |
| 90 kWh | 324,000 kJ | × 3600 |
| 100 kWh | 360,000 kJ | × 3600 |
How to convert kWh to kJ
- Take your value in kilowatt-hours.
- Multiply by 3600
- That is your answer in kilojoules — no rounding needed until you choose a display precision.
Related conversions
kJ to kWhJ to kJkJ to JkJ to calkJ to kcalkJ to WhkJ to Btucal to kJkcal to kJall energy units
Questions
How many kilojoules in 1 kilowatt-hour?
Exactly 3,600 kJ. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert kWh to kJ?
Multiply the kilowatt-hours figure by 3600 — or use the converter above, which updates as you type.
Is kWh to kJ the same as kJ to kWh?
No — they are inverses. One kWh is 3,600 kJ, while one kJ is 0.0002777778 kWh.
What is 1 kWh in kJ?
1 kWh = 3,600 kJ (see the value page for the full arithmetic).