Enter the total power (watts) and the total time (s) into the calculator to determine the Energy from Watts.

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## Energy from Watts Formula

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

**E = P(w) * T**

Variables:

- Where E is the Energy from Watts (Joules)
- P(w) is the total power (watts)
- T is the total time (s)

## How to Calculate Energy from Watts?

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

**Example Problem #1:**

- First, determine the total power (watts). In this example, the total power (watts) is measured to be 85.
- Next, determine the total time (s). For this problem, the total time (s) is calculated to be 9.
- Finally, calculate the Energy from Watts using the formula above:

E = P(w) * T

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

E = 85 * 9 = 765 (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 power (watts) = 9

total time (s) = 3

Entering these values into the formula or calculator above gives us: **E = 9 * 3 = 27 **(Joules)