Kilocalories to Kilojoules
Convert kilocalories to kilojoules instantly — type a value, get the answer.
Kilojoules4.1840kJ
Multiply kilocalories by 4.184 to get kilojoules. 1 kcal = 4.184 kJ.
| Kilocalories (kcal) | Kilojoules (kJ) |
|---|---|
| 1 kcal | 4.184 kJ |
| 2 kcal | 8.368 kJ |
| 5 kcal | 20.92 kJ |
| 10 kcal | 41.84 kJ |
| 25 kcal | 104.6 kJ |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
Common kilocalories-to-kilojoules conversions, rounded to 4 decimals.
How to convert kilocalories to kilojoules
Multiply the number of kilocalories by 4.184. For example, 10 kcal × 4.184 = 41.84 kJ. The converter above does this for any value instantly, and the table below lists the conversions people look up most.
Converting kilojoules back to kilocalories
To go the other way, divide the kJ value by 4.184 — or multiply by 0.239. So 1 kJ ≈ 0.239 kcal.
Questions
How many kilojoules are in a kilocalorie?
One kilocalorie equals 4.184 kilojoules. Multiply any kcal figure by 4.184 to convert it to kJ.
How do I convert kilojoules back to kilocalories?
Divide the kJ value by 4.184, or multiply by 0.239. For example, 5 kJ ≈ 1.195 kcal.
What is 10 kcal in kJ?
10 kcal = 41.84 kJ. Type any value into the converter above to see its kilojoules equivalent.