Kilojoules to Joules Converter
1 kilojoule = 1,000 joules
1 joule = 0.001 kilojoules
How to convert kilojoules to joules
To convert kilojoules to joules, multiply the value in kilojoules by 1,000.
J = kJ × 1,000
Example: 100 kJ × 1,000 = 100,000 J
Kilojoules to Joules conversion table
| Kilojoule (kJ) | Joule (J) |
|---|---|
| 1 kJ | 1,000 J |
| 2 kJ | 2,000 J |
| 3 kJ | 3,000 J |
| 4 kJ | 4,000 J |
| 5 kJ | 5,000 J |
| 6 kJ | 6,000 J |
| 7 kJ | 7,000 J |
| 8 kJ | 8,000 J |
| 9 kJ | 9,000 J |
| 10 kJ | 10,000 J |
| 12 kJ | 12,000 J |
| 15 kJ | 15,000 J |
| 20 kJ | 20,000 J |
| 25 kJ | 25,000 J |
| 30 kJ | 30,000 J |
| 40 kJ | 40,000 J |
| 50 kJ | 50,000 J |
| 60 kJ | 60,000 J |
| 70 kJ | 70,000 J |
| 75 kJ | 75,000 J |
| 80 kJ | 80,000 J |
| 90 kJ | 90,000 J |
| 100 kJ | 100,000 J |
| 150 kJ | 150,000 J |
| 200 kJ | 200,000 J |
| 250 kJ | 250,000 J |
| 500 kJ | 500,000 J |
| 1,000 kJ | 1,000,000 J |
About these units
Kilojoule (kJ)
The kilojoule (kJ) is a unit of energy in the International System of Units (SI). 1 kilojoule equals 1,000 joules. This value is exact by definition.
Joule (J)
The joule (J) is a unit of energy in the International System of Units (SI). It is the reference unit for all energy conversions on this site.
Frequently asked questions
What is 1 kilojoule in joules?
1 kilojoule equals 1,000 joules.
How do I convert kilojoules to joules?
To convert kilojoules to joules, multiply the value in kilojoules by 1,000. Example: 100 kJ × 1,000 = 100,000 J
What is 100 kJ in joules?
100 kilojoules equals 100,000 joules.