Convert Calorie to Joule
1 calorie = 4.184 joules (cal to J).
A calorie is larger than a joule — one calorie contains 4.184 joules. Both units describe energie, and the reverse is just as easy — one joule equals 0.239006 calories. The converter above does this in real time, and the reference chart lists the values that come up most often.
1 cal = 4.184 J
How to convert Calories to Joules
Multiply the calorie value by 4.184 to get joules.
Example: 10 calories = 41.84 joules.
Calorie to Joule Conversion Chart
| Calories | Joules |
|---|---|
| 1 cal | 4.184 J |
| 2 cal | 8.368 J |
| 3 cal | 12.552 J |
| 5 cal | 20.92 J |
| 10 cal | 41.84 J |
| 20 cal | 83.68 J |
| 25 cal | 104.6 J |
| 50 cal | 209.2 J |
| 100 cal | 418.4 J |
| 1000 cal | 4,184 J |
Frequently Asked Questions
- How many joules are in a calorie?
- There are 4.184 joules in 1 calorie.
- How do you convert calories to joules?
- Multiply the calorie value by 4.184 to get joules.
- What is 5 calories in joules?
- 5 calories equals 20.92 joules.
- What is 100 calories in joules?
- 100 calories equals 418.4 joules.
- What is 1 joule in calories?
- 1 joule equals 0.23900574 calories.
- Is this calorie to joule 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.