Enter the size of the motor (kW) and the efficiency of the electric motor (%) into the Electric Motor Heat Loss Calculator. The calculator will evaluate the Electric Motor Heat Loss.

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## Electric Motor Heat Loss Formula

The following two example problems outline the steps and information needed to calculate the Electric Motor Heat Loss.

EMHL = S * (1-E/100) * 3412.142

Variables:

- EMHL is the Electric Motor Heat Loss (Btu/hr)
- S is the size of the motor (kW)
- E is the efficiency of the electric motor (%)

To calculate electric motor heat loss, subtract the efficiency ratio from 1, multiply by the size of the motor, then again by 3412.142.

## How to Calculate Electric Motor Heat Loss?

The following steps outline how to calculate the Electric Motor Heat Loss.

- First, determine the size of the motor (kW).
- Next, determine the efficiency of the electric motor (%).
- Next, gather the formula from above = EMHL = S * (1-E/100) * 3412.142.
- Finally, calculate the Electric Motor Heat Loss.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

size of the motor (kW) = 100

efficiency of the electric motor (%) = 50

EMHL = S * (1-E/100) * 3412.142** **= ?