⚡ Energy
kilojoules to kilocalories (kcal) Converter
Convert kilojoules to kilocalories (kcal) instantly with a reference conversion table.
Quick answer: To convert kilojoules to kilocalories (kcal), multiply by 0.239006. For example, 1 kilojoules = 0.239006 kilocalories (kcal). Use the calculator below for any value.
kilojoules to kilocalories (kcal)
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Common conversions
| kilojoules | kilocalories (kcal) |
|---|
Formula:
How to convert kilojoules to kilocalories (kcal)
1
Enter your value
Type the number of kilojoules you want to convert into the left box. The result in kilocalories (kcal) 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 — kilocalories (kcal) to kilojoules. Your current value carries across so you don't have to re-enter anything.
3
About kilojoules and kilocalories (kcal)
kilojoules and kilocalories (kcal) are common energy measurements.
📊 Common conversions at a glance
| kilojoules | kilocalories (kcal) |
|---|---|
| 4.184 | 1 |
| 8.368 | 2 |
| 100 | 23.9 |
| 200 | 47.8 |
| 500 | 119.5 |
| 1000 | 239 |
Reviewed for 2026. kilojoules ↔ kilocalories (kcal) 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.