Joules to Calories
Convert J to cal. 1 joule = 0.239005736138 cal, and 1 calorie = 4.184 J.
Formula Divide the value in joules by 4.184. Joules to Calories table
1 joule in every unit
| Kilojoules | 0.001 | kJ |
|---|---|---|
| Megajoules | 0.000001 | MJ |
| Calories | 0.239005736138 | cal |
| Kilocalories | 0.000239005736 | kcal |
| Watt-hours | 0.000277777778 | Wh |
| Kilowatt-hours | 0.000000277778 | kWh |
| British thermal units | 0.00094781712 | BTU |
| Foot-pounds | 0.737562149277 | ft·lbf |
| Electronvolts | 6.241509e+18 | eV |
Food labels write kilocalories (kcal) as "Calories". Calories here are thermochemical: 1 cal = 4.184 J.
How to convert joules to calories
Divide the value in joules by 4.184.
For example, 10 J = 2.39005736138 cal, and 10 cal = 41.84 J.
Frequently asked questions
How many calories are in one joule?
1 joule = 0.239005736138 cal.
What is 10 J in cal?
10 J = 2.39005736138 cal.
How do I convert cal back to J?
Multiply the value in calories by 4.184. 1 calorie = 4.184 J.
Joules to Calories table
| Joules (J) | Calories (cal) |
|---|---|
| 0.1 | 0.023900573614 |
| 0.5 | 0.119502868069 |
| 1 | 0.239005736138 |
| 2 | 0.478011472275 |
| 3 | 0.717017208413 |
| 4 | 0.956022944551 |
| 5 | 1.19502868069 |
| 6 | 1.43403441683 |
| 7 | 1.67304015296 |
| 8 | 1.9120458891 |
| 9 | 2.15105162524 |
| 10 | 2.39005736138 |
| 15 | 3.58508604207 |
| 20 | 4.78011472275 |
| 25 | 5.97514340344 |
| 30 | 7.17017208413 |
| 50 | 11.9502868069 |
| 75 | 17.9254302103 |
| 100 | 23.9005736138 |
| 250 | 59.7514340344 |
| 500 | 119.502868069 |
| 1,000 | 239.005736138 |
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