Kilojoule to Joule
1 kJ = 1,000 J
One kilojoule equals 1,000 joules, and one joule equals 0.001 kilojoules.
Kilojoule to Joule formula
J = kJ × 1000
To convert kilojoules to joules, multiply the value by 1000. One kilojoule equals 1,000 joules.
Step-by-step examples
Convert 1 kilojoules to joules
- 1Start with the value in kilojoules: 1 kJ.
- 2Multiply by the conversion factor 1000.
- 31 × 1000 = 1,000 J.
Result: 1 kJ = 1,000 J
Convert 10 kilojoules to joules
- 1Start with the value in kilojoules: 10 kJ.
- 2Multiply by the conversion factor 1000.
- 310 × 1000 = 10,000 J.
Result: 10 kJ = 10,000 J
Convert 100 kilojoules to joules
- 1Start with the value in kilojoules: 100 kJ.
- 2Multiply by the conversion factor 1000.
- 3100 × 1000 = 100,000 J.
Result: 100 kJ = 100,000 J
Kilojoule to Joule conversion table
| Kilojoule (kJ) | Joule (J) |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
Kilojoule to Joule chart
kJ (horizontal) vs J (vertical)
Batch convert — paste multiple values
Related converters
Reverse: Joule to KilojouleConvert from the same unit
Convert to the same unit
Frequently asked questions
How many joules are in a kilojoule?
There are 1,000 joules in one kilojoule (1 kJ = 1,000 J).
How do you convert kilojoules to joules?
To convert kilojoules to joules, multiply the value by 1000. One kilojoule equals 1,000 joules.
What is 10 kilojoules in joules?
10 kilojoules equals 10,000 joules.
How many kilojoules are in a joule?
One joule equals 0.001 kilojoules (1 J = 0.001 kJ).