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Energy
Calories to Joules
Convert calories (cal) to joules (J). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 cal = 4.184 J
Calories to Joules Conversion Table
Common values, ready to copy:
| calories | joules |
|---|---|
| 1 cal | 4.184 J |
| 2 cal | 8.368 J |
| 5 cal | 20.92 J |
| 10 cal | 41.84 J |
| 25 cal | 104.6 J |
| 50 cal | 209.2 J |
| 100 cal | 418.4 J |
| 1,000 cal | 4184 J |
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Formula
joules = calories × 4.184
Energy uses the SI joule. Food calories (kcal) are 1,000 small calories: 1 kcal = 4,184 J. 1 kWh = 3.6 MJ = 3,600,000 J. 1 BTU = 1,055.06 J.
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