Convert Kilocalorie to Joule (kcal to J)
How to convert kilocalories to joules
To convert kilocalories to joules, multiply kilocalories by 4,184
To convert joules to kilocalories, divide joules by 4,184
Common kilocalorie to joule examples
| Kilocalorie (kcal) | Joule (J) |
|---|---|
| 1 kcal | 4,184 J |
| 10 kcal | 41,840 J |
| 50 kcal | 209,200 J |
| 100 kcal | 418,400 J |
| 250 kcal | 1,046,000 J |
| 500 kcal | 2,092,000 J |
| 1,000 kcal | 4,184,000 J |
| 10,000 kcal | 41,840,000 J |
| 100,000 kcal | 418,400,000 J |
| 1,000,000 kcal | 4,184,000,000 J |
Frequently asked questions
How many joules are in 100 kilocalories?
100 kcal equals about 418,400 J.
What is the kilocalories to joules formula?
Use joules = kilocalories × 4,184. For reverse conversion, kilocalories = joules × 0.000239005736.
Can I convert joules 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.