Enter the energy output and the energy input into the Calculator. The calculator will evaluate the Energy Efficiency Factor.

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## Energy Efficiency Factor Formula

EEF = EO / EI

Variables:

- EEF is the Energy Efficiency Factor
- EO is the energy output
- EI is the energy input

To calculate Energy Efficiency Factor, divide the energy output by the energy input.

## How to Calculate Energy Efficiency Factor?

The following steps outline how to calculate the Energy Efficiency Factor.

- First, determine the energy output.
- Next, determine the energy input.
- Next, gather the formula from above = EEF = EO / EI .
- Finally, calculate the Energy Efficiency Factor.
- 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.

energy output = 300

energy input = 400