Convert joule to kilowatt hour
Here you can quickly calculate how many kilowatt hour fit in one joule.
Only numbers, with a single decimal separator.
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- 1 J = 0 kWh
- 1 kWh = 3600000 J
Example: joule to kilowatt hour
- 1 joule = 0 kilowatt hour
Joule to kilowatt hour conversion table
| joule | kilowatt hour |
|---|---|
| 1 | 0 |
| 2 | 0.000001 |
| 5 | 0.000001 |
| 10 | 0.000003 |
| 20 | 0.000006 |
| 50 | 0.000014 |
| 100 | 0.000028 |
Joule to kilowatt hour formula
To convert joule to kilowatt hour, divide by 3600000.
1 J = 0 kWh
Example: 1 joule = 0 kilowatt hour
Common energy conversion mistakes
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Kilowatts (kW) and kilowatt-hours (kWh) are constantly confused: kW is power, how fast energy is being used right now, while kWh is an amount of energy, power times time. A 2 kW heater running for 3 hours uses 2 × 3 = 6 kWh. Your electricity bill counts kWh; your main fuse limits kW.
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The relationship is exact: 1 kWh = 3.6 MJ (3,600 kJ, because an hour has 3,600 seconds). The common slip is dividing when you should multiply: 10 kWh is 36 MJ, not 2.8. Remember the direction: kWh → MJ means times 3.6.
Quick joule and kilowatt hour conversion quiz
Score:
0
50 joule equals 6.94e-5 kilowatt hour.
Correct answer: 50 joule = 1.39e-5 kilowatt hour.
5 kilowatt hour equals 1.8e+6 joule.
Correct answer: 5 kilowatt hour = 1.8e+7 joule.
5 kilowatt hour equals 1.8e+7 joule.
Correct answer: 5 kilowatt hour = 1.8e+7 joule.
5 joule equals 1.39e-6 kilowatt hour.
Correct answer: 5 joule = 1.39e-6 kilowatt hour.
100 kilowatt hour equals 7.2e+7 joule.
Correct answer: 100 kilowatt hour = 3.6e+8 joule.