Convert kilojoule to joule
Here you can quickly calculate how many joule fit in one kilojoule.
Only numbers and one decimal comma.
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- 1 kJ = 1000 J
- 1 J = 0.001 kJ
Conversion from kilojoule to joule example
- 1 kilojoule = 1000 joule
Kilojoule to joule conversion table
| kilojoule | joule |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 100000 |
Formula to convert kilojoule to joule
To convert kilojoule to joule, multiply by 1000.
1 kJ = 1000 J
Example: 1 kilojoule = 1000 joule
Common mistakes
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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 kilojoule to/from joule conversion quiz
Score:
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118 kilojoule equals 2.36e+5 joule.
Correct answer: 118 kilojoule = 1.18e+5 joule.
217 kilojoule equals 3.26e+5 joule.
Correct answer: 217 kilojoule = 2.17e+5 joule.
13.4 kilojoule equals 1.34e+4 joule.
Correct answer: 13.4 kilojoule = 1.34e+4 joule.