How do you you convert cal to joules?
1 calorie = 4.1858 joules
1 joule = 0.2389029576186153 calories
As an example, convert 5 calories to joules.
1 calorie = 4.1858 joules, therefore 5 calories = 4.1858 x 5
joules = 20.929 joules.
So when converting calories to joules, multiply the number of
calories by 4.1858 to give you the number of joules.