1 kilocalorie (IT) = 4.1868 kilojoules
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| Unit | Symbol | Value |
|---|
How to Convert Kcal to kJ
The formula is kilojoules = kilocalories (IT) × 4.1868. 1 kilocalorie (IT) = 4.1868 kilojoules. Type any value in the converter above for an instant answer, or use the chart below for the most common values.
This page is preset for kilocalorie (IT) to kilojoule conversions, but you can switch either list to any of the 54 units in the Energy Converter, or go the other way with the kJ to Kcal converter.
Kcal to kJ conversion chart
| Kcal | kJ |
|---|---|
| 0.1 kcal | 0.41868 kJ |
| 0.25 kcal | 1.0467 kJ |
| 0.5 kcal | 2.0934 kJ |
| 1 kcal | 4.1868 kJ |
| 2 kcal | 8.3736 kJ |
| 3 kcal | 12.5604 kJ |
| 4 kcal | 16.7472 kJ |
| 5 kcal | 20.934 kJ |
| 6 kcal | 25.1208 kJ |
| 7 kcal | 29.3076 kJ |
| 8 kcal | 33.4944 kJ |
| 9 kcal | 37.6812 kJ |
| 10 kcal | 41.868 kJ |
| 11 kcal | 46.0548 kJ |
| 12 kcal | 50.2416 kJ |
| 13 kcal | 54.4284 kJ |
| 14 kcal | 58.6152 kJ |
| 15 kcal | 62.802 kJ |
| 16 kcal | 66.9888 kJ |
| 17 kcal | 71.1756 kJ |
| 18 kcal | 75.3624 kJ |
| 19 kcal | 79.5492 kJ |
| 20 kcal | 83.736 kJ |
| 25 kcal | 104.67 kJ |
| 30 kcal | 125.604 kJ |
| 40 kcal | 167.472 kJ |
| 50 kcal | 209.34 kJ |
| 60 kcal | 251.208 kJ |
| 70 kcal | 293.076 kJ |
| 75 kcal | 314.01 kJ |
| 80 kcal | 334.944 kJ |
| 90 kcal | 376.812 kJ |
| 100 kcal | 418.68 kJ |
| 150 kcal | 628.02 kJ |
| 200 kcal | 837.36 kJ |
| 250 kcal | 1,046.7 kJ |
| 500 kcal | 2,093.4 kJ |
| 1,000 kcal | 4,186.8 kJ |
Common Kcal to kJ conversions
- 1 kilocalorie (IT) = 4.1868 kilojoules
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How to Use the Kcal to kJ Converter
- Type a value in the From box and choose its unit.
- Pick the unit you want in the To list — the result updates as you type.
- Use the swap button to reverse the conversion, or type in the To box to convert backwards.
- Check the All conversions table to see your value in every unit; click a row to make it the target.
Frequently Asked Questions
How many kilojoules are in a kilocalorie (IT)?
There are 4.1868 kilojoules in 1 kilocalorie (IT). Going the other way, 1 kilojoule = 0.2388458966 kilocalories (IT).
How do I convert Kcal to kJ?
Use the formula kilojoules = kilocalories (IT) × 4.1868. For example, 1 kilocalorie (IT) = 4.1868 kilojoules. Or type the value in the converter above and the answer appears as you type.
What is the Kcal to kJ formula?
kilojoules = kilocalories (IT) × 4.1868 — the conversion factor is exact to the digits shown, using the international definitions of both units.
What is 2 Kcal in kJ?
2 Kcal = 8.3736 kJ.
What is 5 Kcal in kJ?
5 Kcal = 20.934 kJ.
What is 10 Kcal in kJ?
10 Kcal = 41.868 kJ.
What is 25 Kcal in kJ?
25 Kcal = 104.67 kJ.
What is 100 Kcal in kJ?
100 Kcal = 418.68 kJ.
How do I convert kJ back to Kcal?
Use the swap button in the converter above, or open our kJ to Kcal converter. kilocalories (IT) = kilojoules × 0.2388458966.
Is this Kcal to kJ converter accurate?
Yes. It uses exact unit definitions and double-precision maths, and you can show up to 15 significant digits. The table below is calculated with the same formula.
Can I convert Kcal to other energy units?
Yes — pick any unit in the From and To lists above, or open the full Energy Converter, which handles 54 energy units.
Is the Kcal to kJ converter free?
Yes, it is free with no sign-up, and every conversion runs in your browser so nothing is sent to a server.