Kilocalories to Joules
Convert kilocalories to joules instantly — type a value, get the answer.
Joules4,184.0000J
Multiply kilocalories by 4184 to get joules. 1 kcal = 4184 J.
| Kilocalories (kcal) | Joules (J) |
|---|---|
| 1 kcal | 4,184 J |
| 2 kcal | 8,368 J |
| 5 kcal | 20,920 J |
| 10 kcal | 41,840 J |
| 25 kcal | 104,600 J |
| 50 kcal | 209,200 J |
| 100 kcal | 418,400 J |
Common kilocalories-to-joules conversions, rounded to 4 decimals.
How to convert kilocalories to joules
Multiply the number of kilocalories by 4184. For example, 10 kcal × 4184 = 41,840 J. The converter above does this for any value instantly, and the table below lists the conversions people look up most.
Converting joules back to kilocalories
To go the other way, divide the J value by 4184 — or multiply by 0.0002. So 1 J ≈ 0.0002 kcal.
Questions
How many joules are in a kilocalorie?
One kilocalorie equals 4184 joules. Multiply any kcal figure by 4184 to convert it to J.
How do I convert joules back to kilocalories?
Divide the J value by 4184, or multiply by 0.0002. For example, 5 J ≈ 0.0012 kcal.
What is 10 kcal in J?
10 kcal = 41,840 J. Type any value into the converter above to see its joules equivalent.