Energy efficiency ratio from capacity (EER) calculator

Capacity divided by power is the rate form of the EER definition.

Units

\mathrm{EER} = \frac{\text{Cooling capacity}}{\text{Electric}_{\text{input}}}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

\mathrm{EER} = \frac{36{,}000}{3000} = 12

Symbol	Meaning	Unit
$\mathrm{COP}_{\text{rate}}$	cooling coefficient of performance using consistent energy units	—
$\text{Cooling capacity}$	cooling rate	kW
$\text{Electric}_{\text{input}}$	electric input power	kW

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.