Kilocalories to kilojoules
1 kcal = 4.184 kJ
Formula
Multiply the value in kilocalories by 4.184 to get kilojoules.
kJ = kcal × 4.184
How to convert kilocalories to kilojoules
Type a value in the field above and the result is calculated instantly. Use the arrow button to swap direction, or pick other units from the lists.
Kilocalories to kilojoules – common values
| Kilocalories (kcal) | Kilojoules (kJ) |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 20 | 83.68 |
| 50 | 209.2 |
| 100 | 418.4 |
| 250 | 1,046 |
| 500 | 2,092 |
| 1,000 | 4,184 |
About the units
Kilocalories. The kilocalorie (kcal) is the unit on food labels. 1 kcal = 4.184 kJ.