Kilocalories to Kilojoules Converter
Convert kilocalories (kcal) to kilojoules (kJ). Type a number in either box and the result appears as you type.
Enter a number, for example 12.5
1 kilocalorie = 4.184 kilojoules
Formula: kJ = kcal × 4.184
How to convert kilocalories to kilojoules
1 kilocalorie = 4.184 kilojoules
To convert kilocalories to kilojoules, multiply the value by 4.184.
Example: 5 kcal × 4.184 = 20.92 kJ
Kilocalories to Kilojoules conversion table
| Kilocalorie (kcal) | Kilojoule (kJ) |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 3 | 12.552 |
| 4 | 16.736 |
| 5 | 20.92 |
| 10 | 41.84 |
| 15 | 62.76 |
| 20 | 83.68 |
| 25 | 104.6 |
| 50 | 209.2 |
| 75 | 313.8 |
| 100 | 418.4 |
| 250 | 1,046 |
| 500 | 2,092 |
| 1,000 | 4,184 |
About kilocalories and kilojoules
Kilocalorie (kcal)
1,000 calories, exactly 4.184 kJ. This is the Calorie shown on food labels.
Kilojoule (kJ)
1,000 joules. Food labels in many countries show energy in kJ alongside kcal.
Frequently asked questions
What is 1 kcal in kilojoules?
1 kcal = 4.184 kJ.
What is 1 kJ in kilocalories?
1 kJ = 0.2390057361 kcal.
How do I convert kilocalories to kilojoules?
To convert kilocalories to kilojoules, multiply the value by 4.184. 1 kilocalorie = 4.184 kilojoules.