Enter the total number of calories (kcal) into the calculator to determine the Joules from Calories. 

Joules from Calories Formula

The following equation is used to calculate the Joules from Calories. 

E(J) = E(kcal) * 4184


  • Where E(J) is the Joules from Calories (Joules)
  • E(kcal) is the total number of calories (kcal) 

To calculate joules from calories, multiply the kilo-calories by 4184.

How to Calculate Joules from Calories?

The following two example problems outline the steps and information needed in order to calculate the Joules from Calories.

Example Problem #1:

  1. First, determine the total number of calories (kcal). In this example, the total number of calories (kcal) is measured to be 4.
  2. Finally, calculate the Joules from Calories using the formula above: 

E(J) = E(kcal) * 4184

Inserting the values from above and solving the equation with the imputed values gives: 

E(J) = 4 * 4184 = 16736 (Joules)

Example Problem #2: 

Using the same process as example problem 1, we first define the needed variables outlined by the formula. In this case, the values are provide as: 

total number of calories (kcal) = 69

Entering these values into the formula or calculator above gives us: 

E(J) = 69 * 4184 = 288696 (Joules)