Convert Kilocalorie to Kilojoule (kcal to kJ)
How to convert kilocalories to kilojoules
To convert kilocalories to kilojoules, multiply kilocalories by 4.184
To convert kilojoules to kilocalories, divide kilojoules by 4.184
Common kilocalorie to kilojoule examples
| Kilocalorie (kcal) | Kilojoule (kJ) |
|---|---|
| 1 kcal | 4.184 kJ |
| 10 kcal | 41.84 kJ |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
| 250 kcal | 1,046 kJ |
| 500 kcal | 2,092 kJ |
| 1,000 kcal | 4,184 kJ |
| 10,000 kcal | 41,840 kJ |
| 100,000 kcal | 418,400 kJ |
| 1,000,000 kcal | 4,184,000 kJ |
Frequently asked questions
How many kilojoules are in 100 kilocalories?
100 kcal equals about 418.4 kJ.
What is the kilocalories to kilojoules formula?
Use kilojoules = kilocalories × 4.184. For reverse conversion, kilocalories = kilojoules × 0.239005736138.
Can I convert kilojoules to kilocalories too?
Yes. The calculator supports two-way conversion. Edit either field and the other updates instantly.
Is this conversion exact?
The converter uses fixed unit factors. Display values are rounded for readability.