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Energy
Kilocalories to Joules
Convert kilocalories (kcal) to joules (J). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 kcal = 4184 J
Kilocalories to Joules Conversion Table
Common values, ready to copy:
| kilocalories | joules |
|---|---|
| 1 kcal | 4184 J |
| 2 kcal | 8368 J |
| 5 kcal | 20920 J |
| 10 kcal | 41840 J |
| 25 kcal | 104600 J |
| 50 kcal | 209200 J |
| 100 kcal | 418400 J |
| 1,000 kcal | 4.1840e+6 J |
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Formula
joules = kilocalories × 4184
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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