Convert Calorie to Kilojoule
1 calorie = 0.004184 kilojoules (cal to kJ).
Need to move between calories and kilojoules? A calorie is smaller than a kilojoule — it takes 239.006 of them to make a single kilojoule. One kilojoule works out to 239.006 calories in the other direction. The converter above does this in real time, and the reference chart lists the values that come up most often.
1 cal = 0.004184 kJ
How to convert Calories to Kilojoules
Multiply the calorie value by 0.004184 to get kilojoules.
Example: 10 calories = 0.04184 kilojoules.
Calorie to Kilojoule Conversion Chart
| Calories | Kilojoules |
|---|---|
| 1 cal | 0.004184 kJ |
| 2 cal | 0.008368 kJ |
| 3 cal | 0.012552 kJ |
| 5 cal | 0.02092 kJ |
| 10 cal | 0.04184 kJ |
| 20 cal | 0.08368 kJ |
| 25 cal | 0.1046 kJ |
| 50 cal | 0.2092 kJ |
| 100 cal | 0.4184 kJ |
| 1000 cal | 4.184 kJ |
Frequently Asked Questions
- How many kilojoules are in a calorie?
- There are 0.004184 kilojoules in 1 calorie.
- How do you convert calories to kilojoules?
- Multiply the calorie value by 0.004184 to get kilojoules.
- What is 5 calories in kilojoules?
- 5 calories equals 0.02092 kilojoules.
- What is 100 calories in kilojoules?
- 100 calories equals 0.4184 kilojoules.
- What is 1 kilojoule in calories?
- 1 kilojoule equals 239.00574 calories.
- Is this calorie to kilojoule converter free?
- Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.