⚡ Energy
kJ to cal Converter
Convert kJ to cal instantly with a reference conversion table.
Quick answer: To convert kJ to cal, multiply by 239.006. For example, 1 kJ = 239.006 cal. Use the calculator below for any value.
kJ to cal
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Common conversions
| kJ | cal |
|---|
Formula:
How to convert kJ to cal
1
Enter your value
Type the number of kj you want to convert into the left box. The result in cal appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — cal to kJ. Your current value carries across so you don't have to re-enter anything.
3
About kJ and cal
kJ and cal are common energy measurements.
📊 Common conversions at a glance
| kJ | cal |
|---|---|
| 0.00418 | 0.999 |
| 0.001 | 0.239 |
| 0.01 | 2.39 |
| 0.1 | 23.9 |
| 1 | 239 |
| 5 | 1195 |
Reviewed for 2026. kJ ↔ cal conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.