Convert Kilojoule to Joule
1,000
1 kJ = 1,000 J
Use the conversion factor 1 kJ = 1000 J. To convert Kilojoule to Joule, multiply the input value by 1000.
Conversion Formula
J = kJ × 1000
Reverse: kJ = J × 0.001
Conversion Examples
1 kJ × 1,000 =
1,000 J
1 Kilojoules = 1,000 Joules
5 kJ × 1,000 =
5,000 J
5 Kilojoules = 5,000 Joules
10 kJ × 1,000 =
10,000 J
10 Kilojoules = 10,000 Joules
25 kJ × 1,000 =
25,000 J
25 Kilojoules = 25,000 Joules
50 kJ × 1,000 =
50,000 J
50 Kilojoules = 50,000 Joules
100 kJ × 1,000 =
100,000 J
100 Kilojoules = 100,000 Joules
Kilojoule to Joule Table
kJ =—J
| Kilojoule (kJ) | Joule (J) | Fraction |
|---|---|---|
| 1 | 1,000 | — |
| 2 | 2,000 | — |
| 3 | 3,000 | — |
| 4 | 4,000 | — |
| 5 | 5,000 | — |
| 6 | 6,000 | — |
| 7 | 7,000 | — |
| 8 | 8,000 | — |
| 9 | 9,000 | — |
| 10 | 10,000 | — |
| 11 | 11,000 | — |
| 12 | 12,000 | — |
| 13 | 13,000 | — |
| 14 | 14,000 | — |
| 15 | 15,000 | — |
| 16 | 16,000 | — |
| 17 | 17,000 | — |
| 18 | 18,000 | — |
| 19 | 19,000 | — |
| 20 | 20,000 | — |
Unit Definitions
What is a Kilojoule (kJ)?
Metric (SI)Worldwide
Kilojoule (kJ) is one of the two units used in this conversion. Open its dedicated unit page for the reviewed definition and references.
Learn more about KilojouleWhat is a Joule (J)?
Metric (SI)Worldwide
Joule (J) is one of the two units used in this conversion. Open its dedicated unit page for the reviewed definition and references.
Learn more about JouleFrequently Asked Questions
How do I convert Kilojoule to Joule?
Multiply the value in kJ by 1000. The formula is J = kJ × 1000.
How many Joule are in 1 Kilojoule?
One Kilojoule equals 1000 J.
What is 1 kJ in J?
1 kJ equals 1000 J.
How do I convert Joule back to Kilojoule?
Use the reverse factor: 1 J = 0.001 kJ.