Enter the power (watts) and the time (seconds) into the calculator to determine the Energy.

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## Energy Formula

The following equation is used to calculate the Energy.

E = P*T

Variables:

- Where E is the Energy (Joules)
- P is the power (watts)
- T is the time (seconds)

To convert power to energy, multiply the power in watts by the time in seconds.

## How to Calculate Energy?

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

**Example Problem #1:**

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

E = P*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:

power (watts) = 2

time (seconds) = 4

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

**E = 2*4 = 8 **(Joules)