Kilocalories to Joules Converter
Convert kilocalories to joules instantly. One kilocalorie equals 4,184 joules, so you can type any value in kcal and read the answer in J. The page…
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Convert kilocalories to joules instantly. One kilocalorie equals 4,184 joules, so you can type any value in kcal and read the answer in J. 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 kcal = 4,184 J
With the default inputs (value in kilocalories = 1 kcal), the results are: joules 4,184 J.
Kilocalories to joules conversion table
Reference table based on the example values; it is not your calculation result.
| kilocalories (kcal) | joules (J) |
|---|---|
| 1 | 4,184 |
| 2 | 8,368 |
| 5 | 20,920 |
| 10 | 41,840 |
| 25 | 104,600 |
| 50 | 209,200 |
| 100 | 418,400 |
| 500 | 2,092,000 |
| 1,000 | 4,184,000 |
Frequently asked questions
How many joules are in one kilocalorie?
1 kilocalorie = 4,184 joules.
What is the formula to convert kilocalories to joules?
Multiply the value in kilocalories by 4,184.
How do I convert joules back to kilocalories?
1 joule = 0.000239006 kilocalories.
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