Formula: joules = calories × 4.184
To convert calories to joules, multiply by 4.184. One thermochemical calorie is defined as exactly 4.184 joules. Note: food "Calories" (kcal) are 1,000 times larger.
| Calories | Joules |
|---|---|
| 1 cal | 4.184 J |
| 10 cal | 41.84 J |
| 100 cal | 418.4 J |
| 500 cal | 2,092 J |
| 1 kcal | 4,184 J |
| 2,000 kcal | 8,368 kJ |