Kilocalorie to Kilojoule (kcal to kJ)
Convert kcal to kJ — Energy converter
One kilocalorie equals 4.184 kJ, so to convert kilocalories to kilojoules you multiply the value by 4.184. A kilocalorie is larger than a kilojoule — going the other way, 1 kJ = 0.23900574 kcal. For example, 10 kcal = 41.84 kJ and 50 kcal = 209.2 kJ.
4.184Click to copy
1 kcal = 4.184 kJ
Kilocalorie to Kilojoule formula
1 Kilocalorie = 4.184 kJ
Worked examples
- 25 kcal = 104.6 kJ
- 100 kcal = 418.4 kJ
Kilocalorie to Kilojoule conversion table
| Kilocalorie (kcal) | Kilojoule (kJ) |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 3 | 12.552 |
| 5 | 20.92 |
| 8 | 33.472 |
| 10 | 41.84 |
| 12 | 50.208 |
| 15 | 62.76 |
| 20 | 83.68 |
| 25 | 104.6 |
| 50 | 209.2 |
| 100 | 418.4 |
| 250 | 1046 |
| 500 | 2092 |
| 1000 | 4184 |
Frequently asked questions
How many kilojoules are in one kilocalorie?
One kilocalorie equals 4.184 kilojoules (kJ).
How many kilocalories are in one kilojoule?
One kilojoule equals 0.23900574 kilocalories (kcal).
How do you convert kilocalories to kilojoules?
1 Kilocalorie = 4.184 kJ. Use the calculator above for any value.
What is 5 kcal in kJ?
5 kcal = 20.92 kJ.
What is 100 kcal in kJ?
100 kcal = 418.4 kJ.
What is 10 kcal in kJ?
10 kcal = 41.84 kJ.
What is 20 kcal in kJ?
20 kcal = 83.68 kJ.
Is a kilocalorie bigger than a kilojoule?
Yes. A kilocalorie is larger — one kilocalorie equals 4.184 kilojoules (kJ).