kWh to joules converter
1 kilowatt-hour equals 3,600,000 joules. Conversions use J = kWh × 3600000
kWh → 3,600,000 J
J = kWh × 3600000
Converter
Worked examples
- 1 kWh = 3,600,000 J
- 2 kWh = 7,200,000 J
- 5 kWh = 18,000,000 J
- 10 kWh = 36,000,000 J
- 100 kWh = 360,000,000 J
kilowatt-hours to joules conversion table
| kWh | J | Arithmetic |
|---|---|---|
| 1 kWh | 3,600,000 J | × 3600000 |
| 2 kWh | 7,200,000 J | × 3600000 |
| 3 kWh | 10,800,000 J | × 3600000 |
| 4 kWh | 14,400,000 J | × 3600000 |
| 5 kWh | 18,000,000 J | × 3600000 |
| 6 kWh | 21,600,000 J | × 3600000 |
| 8 kWh | 28,800,000 J | × 3600000 |
| 10 kWh | 36,000,000 J | × 3600000 |
| 12 kWh | 43,200,000 J | × 3600000 |
| 15 kWh | 54,000,000 J | × 3600000 |
| 20 kWh | 72,000,000 J | × 3600000 |
| 25 kWh | 90,000,000 J | × 3600000 |
| 30 kWh | 108,000,000 J | × 3600000 |
| 40 kWh | 144,000,000 J | × 3600000 |
| 50 kWh | 180,000,000 J | × 3600000 |
| 60 kWh | 216,000,000 J | × 3600000 |
| 70 kWh | 252,000,000 J | × 3600000 |
| 80 kWh | 288,000,000 J | × 3600000 |
| 90 kWh | 324,000,000 J | × 3600000 |
| 100 kWh | 360,000,000 J | × 3600000 |
How to convert kWh to J
- Take your value in kilowatt-hours.
- Multiply by 3600000
- That is your answer in joules — no rounding needed until you choose a display precision.
Related conversions
J to kWhJ to kJJ to calJ to kcalJ to WhJ to BtukJ to Jcal to Jkcal to Jall energy units
Questions
How many joules in 1 kilowatt-hour?
Exactly 3,600,000 J. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert kWh to J?
Multiply the kilowatt-hours figure by 3600000 — or use the converter above, which updates as you type.
Is kWh to J the same as J to kWh?
No — they are inverses. One kWh is 3,600,000 J, while one J is 0.0000002778 kWh.
What is 1 kWh in J?
1 kWh = 3,600,000 J (see the value page for the full arithmetic).