How to convert joules to calories
cal = J × 0.2390057361
One joule equals 0.2390057361 cal, so multiply the value in joules by 0.2390057361. Example: 10 J = 2.390057361 cal.
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 calories conversion table
| Joules (J) | Calories (cal) |
|---|---|
| 1 J | 0.2390057361 cal |
| 2 J | 0.4780114723 cal |
| 3 J | 0.7170172084 cal |
| 5 J | 1.195028681 cal |
| 10 J | 2.390057361 cal |
| 15 J | 3.585086042 cal |
| 20 J | 4.780114723 cal |
| 25 J | 5.975143403 cal |
| 50 J | 11.95028681 cal |
| 75 J | 17.92543021 cal |
| 100 J | 23.90057361 cal |
| 250 J | 59.75143403 cal |
| 500 J | 119.5028681 cal |
| 1,000 J | 239.0057361 cal |