How Many Kilojoules in a Kilocalorie?
Quick Answer
There are approximately 4.184 kilojoules in a kilocalorie.
1 kcal ≈ 4.184 kJ
Understanding the Conversion
One kilocalorie (kcal), commonly called a food Calorie (capital C), equals approximately 4.184 kilojoules (kJ). In many countries, food labels display energy in kJ rather than kcal. To convert, multiply kcal by 4.184 to get kJ.
Formula
1 kcal ≈ 4.184 kJ
Common Examples
| Description | Value |
|---|---|
| A 2,000 kcal daily diet | About 8,368 kJ |
| A 100 kcal snack | About 418 kJ |
| Burning 500 kcal exercising | About 2,092 kJ |
Quick Reference Table
Use this table for quick conversions between kilocalorie and kilojoules:
| kilocalorie | kilojoules |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 25 | 104.6 |
| 50 | 209.2 |
| 100 | 418.4 |
Frequently Asked Questions
How Many Kilojoules in a Kilocalorie?
There are approximately 4.184 kilojoules in a kilocalorie. One kilocalorie (kcal), commonly called a food Calorie (capital C), equals approximately 4.184 kilojoules (kJ). In many countries, food labels display energy in kJ rather than kcal. To convert, multiply kcal by 4.184 to get kJ.
What is the formula to convert kilocalorie to kilojoules?
The formula is: 1 kcal ≈ 4.184 kJ. To convert, multiply the number of kilocalories by 4.184 to get the equivalent in kilojoules.
How do I convert kilojoules to kilocalorie?
To convert kilojoules to kilocalorie, divide the number of kilojoules by 4.184. For example, 20.92 kilojoules equals 5 kilocalories.