How to convert
kJ = kcal × 4.184
Reverse: kcal = kJ × 0.2390057361
kJ = kcal × 4.184
Reverse: kcal = kJ × 0.2390057361
Converting kcal to kJ
kcal and kJ are units of energy. One kcal equals 4.184 kJ. Just type a value in the box above to convert instantly — useful for recipes, drawings, product specs and travel between metric and imperial units.
kcal to kJ conversion chart
| kcal | kJ |
|---|---|
| 1 kcal | 4.184 kJ |
| 2 kcal | 8.368 kJ |
| 3 kcal | 12.552 kJ |
| 5 kcal | 20.92 kJ |
| 10 kcal | 41.84 kJ |
| 20 kcal | 83.68 kJ |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
Frequently asked questions
- How many kJ are in one kcal?
- 1 kcal = 4.184 kJ.
- How do I convert kJ back to kcal?
- Multiply the kJ value by 0.2390057361 to get kcal.
- Is my input sent to a server?
- No. Everything is calculated locally in your browser and nothing is uploaded or stored.