Convert Joule to Kilojoule
0.001
1 J = 0.001 kJ
Use the conversion factor 1 J = 0.001 kJ. To convert Joule to Kilojoule, multiply the input value by 0.001.
Conversion Formula
kJ = J × 0.001
Reverse: J = kJ × 1000
Conversion Examples
1 J × 0.001 =
0.001 kJ
1 Joules = 0.001 Kilojoules
5 J × 0.001 =
0.005 kJ
5 Joules = 0.005 Kilojoules
10 J × 0.001 =
0.01 kJ
10 Joules = 0.01 Kilojoules
25 J × 0.001 =
0.025 kJ
25 Joules = 0.025 Kilojoules
50 J × 0.001 =
0.05 kJ
50 Joules = 0.05 Kilojoules
100 J × 0.001 =
0.1 kJ
100 Joules = 0.1 Kilojoules
Joule to Kilojoule Table
J =—kJ
| Joule (J) | Kilojoule (kJ) | Fraction |
|---|---|---|
| 100 | 0.1 | 3/32 |
| 200 | 0.2 | 13/64 |
| 300 | 0.3 | 19/64 |
| 400 | 0.4 | 13/32 |
| 500 | 0.5 | 1/2 |
| 600 | 0.6 | 19/32 |
| 700 | 0.7 | 45/64 |
| 800 | 0.8 | 51/64 |
| 900 | 0.9 | 29/32 |
| 1,000 | 1 | — |
| 1,100 | 1.1 | 1 3/32 |
| 1,200 | 1.2 | 1 13/64 |
| 1,300 | 1.3 | 1 19/64 |
| 1,400 | 1.4 | 1 13/32 |
| 1,500 | 1.5 | 1 1/2 |
| 1,600 | 1.6 | 1 19/32 |
| 1,700 | 1.7 | 1 45/64 |
| 1,800 | 1.8 | 1 51/64 |
| 1,900 | 1.9 | 1 29/32 |
| 2,000 | 2 | — |
Unit Definitions
What 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 JouleWhat 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 KilojouleFrequently Asked Questions
How do I convert Joule to Kilojoule?
Multiply the value in J by 0.001. The formula is kJ = J × 0.001.
How many Kilojoule are in 1 Joule?
One Joule equals 0.001 kJ.
What is 10000 J in kJ?
10000 J equals 10 kJ.
How do I convert Kilojoule back to Joule?
Use the reverse factor: 1 kJ = 1000 J.