Calories to Joules conversion table
| Calories | Joules |
|---|---|
| 1 cal | 4.184 J |
| 2 cal | 8.368 J |
| 5 cal | 20.92 J |
| 10 cal | 41.84 J |
| 25 cal | 104.6 J |
| 50 cal | 209.2 J |
| 100 cal | 418.4 J |
How to convert calories to joules
Joules = Calories × 4.184. For example, 2 cal = 8.368 J. Type a value in either box above: the other one updates instantly, both ways.
What is a calorie?
A calorie (cal) here is the thermochemical small calorie, exactly 4.184 joules.
What is a joule?
The joule (J) is the SI unit of energy, the work done by a force of one newton over one meter.
How do I convert calories to joules?
Use the formula Joules = Calories × 4.184. Type a value in the calories box and the result appears instantly.
How many joules are in 1 calorie?
1 cal = 4.184 J.
Is this converter free and private?
Yes. It is free, needs no sign-up, and the calculation runs in your browser: nothing is sent to a server.
Is a food Calorie the same as a calorie?
No. The Calorie on food labels is a kilocalorie (kcal), 1000 small calories or 4.184 kJ. This page uses the thermochemical calorie, 4.184 J.