Enter the total engine power (watts) and the total run time of engine (s) into the calculator to determine the Motor Energy.

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## Motor Energy Formula

The following equation is used to calculate the Motor Energy.

**Em = MP * T**

Variables:

- Where Em is the Motor Energy (Joules)
- MP is the total engine power (watts)
- T is the total run time of engine (s)

## How to Calculate Motor Energy?

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

**Example Problem #1:**

- First, determine the total engine power (watts). In this example, the total engine power (watts) is measured to be 58.
- Next, determine the total run time of engine (s). For this problem, the total run time of engine (s) is calculated to be 4.
- Finally, calculate the Motor Energy using the formula above:

Em = MP * T

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

Em = 58 * 4 = 232 (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 engine power (watts) = 49

total run time of engine (s) = 10

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

Em = 49 * 10 = 490** **(Joules)