Calories to Kilojoules Converter
Convert calories to kilojoules instantly. One calorie equals 0.004184 kilojoules, so you can type any value in cal and read the answer in kJ. The…
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Convert calories to kilojoules instantly. One calorie equals 0.004184 kilojoules, so you can type any value in cal and read the answer in kJ. The page also shows a conversion table and the exact formula used.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
1 cal = 0.004184 kJ
With the default inputs (value in calories = 1 cal), the results are: kilojoules 0.004184 kJ.
Calories to kilojoules conversion table
Reference table based on the example values; it is not your calculation result.
| calories (cal) | kilojoules (kJ) |
|---|---|
| 1 | 0.004184 |
| 2 | 0.008368 |
| 5 | 0.02092 |
| 10 | 0.04184 |
| 25 | 0.1046 |
| 50 | 0.2092 |
| 100 | 0.4184 |
| 500 | 2.092 |
| 1,000 | 4.184 |
Frequently asked questions
How many kilojoules are in one calorie?
1 calorie = 0.004184 kilojoules.
What is the formula to convert calories to kilojoules?
Multiply the value in calories by 0.004184.
How do I convert kilojoules back to calories?
1 kilojoule = 239.0057 calories.
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