How to convert kilocalories to joules
J = kcal × 4,184
One kilocalorie equals 4,184 J, so multiply the value in kilocalories by 4,184. Example: 10 kcal = 41,840 J.
The calorie here is the thermochemical calorie (exactly 4.184 J); a food "Calorie" is one kilocalorie. One kilowatt-hour is exactly 3.6 MJ. The BTU is the International Table BTU (1,055.05585262 J).
Kilocalories to joules conversion table
| Kilocalories (kcal) | Joules (J) |
|---|---|
| 1 kcal | 4,184 J |
| 2 kcal | 8,368 J |
| 3 kcal | 12,552 J |
| 5 kcal | 20,920 J |
| 10 kcal | 41,840 J |
| 15 kcal | 62,760 J |
| 20 kcal | 83,680 J |
| 25 kcal | 104,600 J |
| 50 kcal | 209,200 J |
| 75 kcal | 313,800 J |
| 100 kcal | 418,400 J |
| 250 kcal | 1,046,000 J |
| 500 kcal | 2,092,000 J |
| 1,000 kcal | 4,184,000 J |