Enter the total grams of protein (g) into the calculator to determine the Energy from Protein.

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## Energy from Protein Formula

The following equation is used to calculate the Energy from Protein.

E = P*4

Variables:

- Where E is the Energy from Protein (kcal)
- P is the total grams of protein (g)

To calculate the energy from protein, multiply the protein weight in grams by 4.

## How to Calculate Energy from Protein?

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

**Example Problem #1:**

- First, determine the total grams of protein (g). In this example, the total grams of protein (g) is measured to be 45.
- Finally, calculate the Energy from Protein using the formula above:

E = P*4 = (kcal)

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

E = 45*4 = 180 kcal

**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 grams of protein (g) = 40

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

E = 40*4 = 160** **(kcal)