calories to joules | Exact Decimal + Formula
1 Calorie = 4.184 Joule
Conversions between Calorie (cal) and Joule (J) are essential in the energy category. This tool provides a quick, free, and accurate way to convert calories to joules for academic, professional, or personal calculations. Check the detailed conversion table and formula explanation below for more context.
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Formula
J = cal × 4.184
To convert Calorie to Joule, use the formula displayed above.
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Calorie to Joule: Quick Reference Table
| Calorie | Joule (Decimal) | Fraction |
|---|---|---|
| 0.001 cal | 0.004184 J | - |
| 0.01 cal | 0.04184 J | - |
| 0.1 cal | 0.4184 J | - |
| 0.5 cal | 2.092 J | - |
| 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 | - |
| 250 cal | 1046 J | - |
| 500 cal | 2092 J | - |
| 1000 cal | 4184 J | - |
cal to J Formula and Examples
Direct Formula
J = cal × 4.184 Inverse Formula
cal = J × 0.239006 Mental Math Shortcut
Multiply the value by roughly 4.2 to calculate the equivalent amount in your head.
Common Calorie to Joule Calculations
- 5 cal = 20.92 J
- 10 cal = 41.84 J
- 50 cal = 209.2 J
- 100 cal = 418.4 J
- 500 cal = 2092 J
How to Convert Calorie to Joule
How many joules are in a calorie?
1 Calorie (cal) is equal to 4.184 Joule (J). To convert calories to joules, multiply your value by 4.184.
How do I convert calorie to joule?
To convert Calorie to Joule, use the formula: Joule = Calorie × 4.184. For example, 5 cal = 20.92 J.
What is the formula for cal to J?
The formula is: J = cal × 4.184. This is based on the exact SI conversion factor. Use our calculator above to convert any value instantly.