Table Of Contents
Kilocalories to joules Conversion
1 kilocalories (kcal) is equal to 4184 joules (joule).
1 kcal = 4184 joule
or
1 joule = 0.0002390057361 kcal
Formula
To convert a energy from kilocalories (kcal) to joules (joule), multiply the energy in kilocalories by 4184
e(joule) = e(kcal) × 4184
Examples:
Convert 1 kilocalories to joules:
e(joule) = 1kcal × 4184 = 4184 joule
Conversion table
| Kilocalories (kcal) | Joules (joule) |
|---|---|
| 1 kcal | 4184 joule |
| 2 kcal | 8368 joule |
| 3 kcal | 12552 joule |
| 5 kcal | 20920 joule |
| 10 kcal | 41840 joule |
| 20 kcal | 83680 joule |
| 25 kcal | 104600 joule |
| 50 kcal | 209200 joule |
| 100 kcal | 418400 joule |
| 250 kcal | 1046000 joule |
| 500 kcal | 2092000 joule |
| 1000 kcal | 4184000 joule |
| Joules (joule) | Kilocalories (kcal) |
|---|---|
| 1 joule | 2.39006e-4 kcal |
| 2 joule | 4.78011e-4 kcal |
| 3 joule | 7.17017e-4 kcal |
| 5 joule | 0.001195029 kcal |
| 10 joule | 0.002390057 kcal |
| 20 joule | 0.004780115 kcal |
| 25 joule | 0.005975143 kcal |
| 50 joule | 0.011950287 kcal |
| 100 joule | 0.023900574 kcal |
| 250 joule | 0.059751434 kcal |
| 500 joule | 0.119502868 kcal |
| 1000 joule | 0.239005736 kcal |
Frequently asked questions
How do I convert kilocalories to joules?
Multiply the value in kilocalories by 4184 to get the result in joules. For example, 5 kcal × 4184 = 20920 joule.
How many joules are in 1 kilocalories?
1 kilocalories (kcal) is equal to 4184 joules (joule).
How do I convert joules back to kilocalories?
Use the inverse operation: divide the value in joules by 4184 to get the result in kilocalories.
How accurate is the kilocalories to joules conversion?
The converter multiplies by the conversion factor 4184 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
