Kilocalories to Kilojoules
Convert kilocalories (kcal) to kilojoules (kJ) instantly. See the formula, reference table, and common conversions.
Primary conversion
1 kilocalorie=4.184kilojoules
1 kcal = 4.184 kJ
Formula
kilojoules = kilocalories × 4.184
Multiply the number of kilocalories by 4.184 to get the value in kilojoules.
Reference Table
| Kilocalories (kcal) | Kilojoules (kJ) |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 25 | 104.6 |
| 50 | 209.2 |
| 100 | 418.4 |
| 250 | 1046 |
| 500 | 2092 |
| 1000 | 4184 |
Frequently Asked Questions
How many kilojoules are in 1 kilocalorie?
1 kilocalorie equals 4.184 kilojoules.
How do you convert kilocalories to kilojoules?
Multiply the number of kilocalories by 4.184 to get the value in kilojoules. For example, 10 kcal = 41.84 kJ.
What is the formula for kilocalories to kilojoules?
kilojoules = kilocalories × 4.184.
How do you convert kilojoules back to kilocalories?
Multiply kilojoules by 0.239006 to get kilocalories. 1 kJ = 0.239006 kcal.