100 joules to kilojoules
100 J = 0.1 kJ. Change the amount below, or read the formula and the reference table further down.
100 joules equals
kilojoules
1 J = 0.001 kJ
The formula
Joules and kilojoules both measure energy from the same zero, so a single multiplier does the job.
kJ = J × 0.001
Going the other way? Convert kilojoules to joules.
Joules to kilojoules table
Values either side of 100 J.
| Joules (J) | Kilojoules (kJ) |
|---|---|
| 0 | 0 |
| 10 | 0.01 |
| 20 | 0.02 |
| 30 | 0.03 |
| 40 | 0.04 |
| 50 | 0.05 |
| 60 | 0.06 |
| 70 | 0.07 |
| 80 | 0.08 |
| 90 | 0.09 |
| 100 | 0.1 |
| 110 | 0.11 |
| 120 | 0.12 |
| 130 | 0.13 |
| 140 | 0.14 |
| 150 | 0.15 |
| 160 | 0.16 |
| 170 | 0.17 |
| 180 | 0.18 |
| 190 | 0.19 |
| 200 | 0.2 |
Questions people ask
- How many kilojoules are in a joule?
- One joule equals 0.001 kilojoules.
- How do I convert joules to kilojoules by hand?
- Multiply the number of joules by 0.001. For a rough check, 0.001 is close enough for most everyday use.
- What is 100 joules in kilojoules?
- 100 joules is 0.1 kilojoules.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.