How to convert joules to kilocalories
kcal = J × 0.0002390057
One joule equals 0.0002390057 kcal, so multiply the value in joules by 0.0002390057. Example: 10 J = 0.0023900574 kcal.
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).
Joules to kilocalories conversion table
| Joules (J) | Kilocalories (kcal) |
|---|---|
| 1 J | 0.0002390057 kcal |
| 2 J | 0.0004780115 kcal |
| 3 J | 0.0007170172 kcal |
| 5 J | 0.0011950287 kcal |
| 10 J | 0.0023900574 kcal |
| 15 J | 0.003585086 kcal |
| 20 J | 0.0047801147 kcal |
| 25 J | 0.0059751434 kcal |
| 50 J | 0.0119502868 kcal |
| 75 J | 0.0179254302 kcal |
| 100 J | 0.0239005736 kcal |
| 250 J | 0.059751434 kcal |
| 500 J | 0.1195028681 kcal |
| 1,000 J | 0.2390057361 kcal |