kilocalories (kcal) to kilojoules Converter
Convert kilocalories (kcal) to kilojoules instantly: 1 kilocalories (kcal) = 4.184 kilojoules. Free, with formula and reference table.
| kilocalories (kcal) | kilojoules |
|---|
How to convert kilocalories (kcal) to kilojoules
Enter your value
Type the number of kilocalories (kcal) you want to convert into the left box. The result in kilojoules appears instantly in the right box. You can also type into the right box to convert in the other direction.
Use the swap button
Click the ⇄ Swap button to reverse the conversion — kilojoules to kilocalories (kcal). Your current value carries across so you don't have to re-enter anything.
About kilocalories (kcal) and kilojoules
kilocalories (kcal) and kilojoules are common energy measurements.
Worked examples: kilocalories (kcal) to kilojoules
Multiply the kilocalories (kcal) value by 4.184 to get kilojoules. A few quick examples:
- 5 kilocalories (kcal) × 4.184 = 20.92 kilojoules
- 25 kilocalories (kcal) × 4.184 = 104.6 kilojoules
- 250 kilocalories (kcal) × 4.184 = 1,046 kilojoules
Related conversions
| kilocalories (kcal) | kilojoules |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 50 | 209.2 |
| 100 | 418.4 |
Frequently asked questions
How do I convert kilocalories (kcal) to kilojoules?
To convert kilocalories (kcal) to kilojoules, multiply by 4.184. Or use the calculator above for instant results.
How many kilojoules are in 1 kilocalories (kcal)?
1 kilocalories (kcal) equals 4.184 kilojoules.
Is the kilocalories (kcal) to kilojoules converter free?
Yes, the kilocalories (kcal) to kilojoules converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.