Calories to Joules
Convert calories (cal) to joules (J) instantly. See the formula, reference table, and common conversions.
Primary conversion
1 calorie=4.184joules
1 cal = 4.184 J
Formula
joules = calories × 4.184
Multiply the number of calories by 4.184 to get the value in joules.
Reference Table
| Calories (cal) | Joules (J) |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 25 | 104.6 |
| 50 | 209.2 |
| 100 | 418.4 |
| 250 | 1046 |
| 500 | 2092 |
| 1000 | 4184 |
Frequently Asked Questions
How many joules are in 1 calorie?
1 calorie equals 4.184 joules.
How do you convert calories to joules?
Multiply the number of calories by 4.184 to get the value in joules. For example, 10 cal = 41.84 J.
What is the formula for calories to joules?
joules = calories × 4.184.
How do you convert joules back to calories?
Multiply joules by 0.239006 to get calories. 1 J = 0.239006 cal.