Kilocalories to Kilojoules Converter
Convert kcal to kJ instantly. 1 kcal = 4.184 kJ.
Conversion Formula
kJ = kcal × 4.184
Example
25 kcal × 4.184 = 104.6 kJ
Convert the other way: Kilojoules to Kilocalories →
Kilocalories to Kilojoules Conversion Table
| Kilocalories (kcal) | Kilojoules (kJ) |
|---|---|
| 0.1 | 0.4184 |
| 0.5 | 2.092 |
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 20 | 83.68 |
| 25 | 104.6 |
| 50 | 209.2 |
| 100 | 418.4 |
| 500 | 2,092 |
| 1,000 | 4,184 |
About These Units
- Kilocalories (kcal)
- Exactly 1,000 calories, or 4,184 J using the thermochemical calorie. This is the Calorie printed on US food labels, and it is the unit for daily diets and exercise energy estimates.
- Kilojoules (kJ)
- Exactly 1,000 joules. Kilojoules appear on food labels in Australia, New Zealand, and the European Union alongside or instead of calories, and one food Calorie equals about 4.184 kJ.
Frequently Asked Questions
How many kJ are in 1 kcal?
1 kcal equals 4.184 kJ.
How do I convert Kilocalories to Kilojoules?
Multiply your Kilocalories value by 4.184. For example, 25 kcal × 4.184 = 104.6 kJ.
How many kcal are in 1 kJ?
1 kJ equals 0.2390057361 kcal.