⚡ Energy

kilojoules to kilocalories (kcal) Converter

Convert kilojoules to kilocalories (kcal) instantly: 1 kilojoules = 0.239006 kilocalories (kcal). Free, with formula and reference 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.

Worked examples: kilojoules to kilocalories (kcal)

Multiply the kilojoules value by 0.239006 to get kilocalories (kcal). A few quick examples:

  • 5 kilojoules × 0.239006 = 1.19503 kilocalories (kcal)
  • 25 kilojoules × 0.239006 = 5.97515 kilocalories (kcal)
  • 250 kilojoules × 0.239006 = 59.7515 kilocalories (kcal)
📊 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.

Frequently asked questions

How do I convert kilojoules to kilocalories (kcal)?

To convert kilojoules to kilocalories (kcal), multiply by 0.239006. Or use the calculator above for instant results.

How many kilocalories (kcal) are in 1 kilojoules?

1 kilojoules equals 0.239006 kilocalories (kcal).

Is the kilojoules to kilocalories (kcal) converter free?

Yes, the kilojoules to kilocalories (kcal) converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.