calories to kj | Exact Decimal + Formula
1 Calorie = 0.004184 Kilojoule
Conversions between Calorie (cal) and Kilojoule (kJ) are essential in the energy category. This tool provides a quick, free, and accurate way to convert calories to kilojoules for academic, professional, or personal calculations. Check the detailed conversion table and formula explanation below for more context.
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Formula
kJ = cal × 0.004184
To convert Calorie to Kilojoule, use the formula displayed above.
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Calorie to Kilojoule: Quick Reference Table
| Calorie | Kilojoule (Decimal) | Fraction |
|---|---|---|
| 0.001 cal | 0.000004 kJ | - |
| 0.01 cal | 0.000042 kJ | - |
| 0.1 cal | 0.000418 kJ | - |
| 0.5 cal | 0.002092 kJ | - |
| 1 cal | 0.004184 kJ | - |
| 2 cal | 0.008368 kJ | - |
| 5 cal | 0.02092 kJ | - |
| 10 cal | 0.04184 kJ | - |
| 25 cal | 0.1046 kJ | - |
| 50 cal | 0.2092 kJ | - |
| 100 cal | 0.4184 kJ | - |
| 250 cal | 1.046 kJ | - |
| 500 cal | 2.092 kJ | - |
| 1000 cal | 4.184 kJ | - |
cal to kJ Formula and Examples
Direct Formula
kJ = cal × 0.004184 Inverse Formula
cal = kJ × 239.005736 Mental Math Shortcut
Divide the value by roughly 239 to quickly estimate the converted result.
Common Calorie to Kilojoule Calculations
- 5 cal = 0.02092 kJ
- 10 cal = 0.04184 kJ
- 50 cal = 0.2092 kJ
- 100 cal = 0.4184 kJ
- 500 cal = 2.092 kJ
How to Convert Calorie to Kilojoule
How many kilojoules are in a calorie?
1 Calorie (cal) is equal to 0.004184 Kilojoule (kJ). To convert calories to kilojoules, multiply your value by 0.004184.
How do I convert calorie to kilojoule?
To convert Calorie to Kilojoule, use the formula: Kilojoule = Calorie × 0.004184. For example, 5 cal = 0.02092 kJ.
What is the formula for cal to kJ?
The formula is: kJ = cal × 0.004184. This is based on the exact SI conversion factor. Use our calculator above to convert any value instantly.