Convert Kilocalorie to Kilojoule
1 kilocalorie equals 4.184 kilojoules. Enter a value below to convert instantly.
Formula
Multiply the number of kilocalories by 4.184 to get kilojoules.
Step by step
- Start with 1 kcal.
- Multiply by the conversion factor 4.184.
- 1 × 4.184 = 4.184 kJ.
Kilocalorie to Kilojoule conversion table
| Kilocalories (kcal) | Kilojoules (kJ) |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 20 | 83.68 |
| 50 | 209.2 |
| 100 | 418.4 |
| 500 | 2,092 |
| 1,000 | 4,184 |
About the kilocalorie
The kilocalorie (kcal) is a Metric unit of energy.
About the kilojoule
The kilojoule (kJ) is a SI unit of energy.
Where this conversion is used
Converting kilocalories to kilojoules comes up when nutrition labels, electricity bills, heating, and physics.
Need the other direction? Convert kilojoule to kilocalorie →
Related conversions
Frequently asked questions
How many kilojoules are in a kilocalorie?
One kilocalorie equals 4.184 kilojoules.
How do you convert kilocalories to kilojoules?
Multiply the number of kilocalories by 4.184 to get kilojoules.
What is 1 kilojoule in kilocalories?
One kilojoule equals 0.23900574 kilocalories.
When would I convert kilocalories to kilojoules?
This conversion is common when nutrition labels, electricity bills, heating, and physics.
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.