Kilocalorie to Joule (kcal to J)
Convert kcal to J — Energy converter
One kilocalorie equals 4184 J, so to convert kilocalories to joules you multiply the value by 4184. A kilocalorie is larger than a joule — going the other way, 1 J = 0.0002390057 kcal. For example, 10 kcal = 41840 J and 50 kcal = 209200 J.
4184Click to copy
1 kcal = 4184 J
Kilocalorie to Joule formula
1 Kilocalorie = 4184 J
Worked examples
- 25 kcal = 104600 J
- 100 kcal = 418400 J
Kilocalorie to Joule conversion table
| Kilocalorie (kcal) | Joule (J) |
|---|---|
| 1 | 4184 |
| 2 | 8368 |
| 3 | 12552 |
| 5 | 20920 |
| 8 | 33472 |
| 10 | 41840 |
| 12 | 50208 |
| 15 | 62760 |
| 20 | 83680 |
| 25 | 104600 |
| 50 | 209200 |
| 100 | 418400 |
| 250 | 1046000 |
| 500 | 2092000 |
| 1000 | 4184000 |
Frequently asked questions
How many joules are in one kilocalorie?
One kilocalorie equals 4184 joules (J).
How many kilocalories are in one joule?
One joule equals 0.0002390057 kilocalories (kcal).
How do you convert kilocalories to joules?
1 Kilocalorie = 4184 J. Use the calculator above for any value.
What is 5 kcal in J?
5 kcal = 20920 J.
What is 100 kcal in J?
100 kcal = 418400 J.
What is 10 kcal in J?
10 kcal = 41840 J.
What is 20 kcal in J?
20 kcal = 83680 J.
Is a kilocalorie bigger than a joule?
Yes. A kilocalorie is larger — one kilocalorie equals 4184 joules (J).