Convert Kilojoule to Joule
1 kilojoule = 1,000 joules (kJ to J).
The kilojoule (kJ) and the joule (J) both measure energie. A kilojoule is larger than a joule — one kilojoule contains 1,000 joules. Going the other way, one joule is 0.001 kilojoules. The converter above does this in real time, and the reference chart lists the values that come up most often.
1 kJ = 1,000 J
How to convert Kilojoules to Joules
Multiply the kilojoule value by 1,000 to get joules.
Example: 10 kilojoules = 10,000 joules.
Kilojoule to Joule Conversion Chart
| Kilojoules | Joules |
|---|---|
| 1 kJ | 1,000 J |
| 2 kJ | 2,000 J |
| 3 kJ | 3,000 J |
| 5 kJ | 5,000 J |
| 10 kJ | 10,000 J |
| 20 kJ | 20,000 J |
| 25 kJ | 25,000 J |
| 50 kJ | 50,000 J |
| 100 kJ | 100,000 J |
| 1000 kJ | 1,000,000 J |
Frequently Asked Questions
- How many joules are in a kilojoule?
- There are 1,000 joules in 1 kilojoule.
- How do you convert kilojoules to joules?
- Multiply the kilojoule value by 1,000 to get joules.
- What is 5 kilojoules in joules?
- 5 kilojoules equals 5,000 joules.
- What is 100 kilojoules in joules?
- 100 kilojoules equals 100,000 joules.
- What is 1 joule in kilojoules?
- 1 joule equals 0.001 kilojoules.
- Is this kilojoule to joule converter free?
- Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.