21 Calories to Joules
Instantly convert 21 Calories to Joules. Free online converter.
21 Calories = 87.864 Joules
21 cal = 87.864 J
Convert Another Value
How to Convert 21 Calories to Joules
1
Know the conversion factor
1 Calorie equals 4.184 Joules.
2
Multiply your value
Take your value (21) and multiply it by 4.184.
21 × 4.1843
Get your result
The result is 87.864 Joules.
21 cal = 87.864 JFrequently Asked Questions
How many Joules is 21 Calories?
21 Calories is equal to 87.864 Joules.
How do I convert 21 Calories to Joules?
To convert Calories to Joules, multiply the value by 4.184. So, 21 cal × 4.184 = 87.864 J.
What is the formula to convert Calories to Joules?
The formula is: J = cal × 4.184. For example, 21 cal = 87.864 J.
How many Calories is 87.864 Joules?
87.864 Joules is equal to 21 Calories. This is the reverse conversion.
About These Units
Quick Facts
Conversion Formula
J = cal × 4.184