Exhaust Fan CFM Calculator
Exhaust Fan Calculator
Enter any 3 values to calculate the missing variable
Enter any 3 values to calculate the missing variable
Do you need to calculate the CFM of your exhaust fan? The Exhaust Fan CFM Calculator is here to assist you. By entering values such as room dimensions and air changes per hour, you can quickly find the required CFM for your fan.
CFM stands for Cubic Feet per Minute. It measures the volume of air an exhaust fan can move in a minute. Calculating the CFM helps ensure proper ventilation and air quality in a space.
Enter Room Dimensions:
Enter Desired Air Changes per Hour (ACH):
Input these values into the calculator to find the CFM.
The formula to calculate CFM for an exhaust fan is:
$\text{CFM} = \frac{\text{Room Volume (ft³)} \times \text{ACH}}{60}$
Variables
Variable | Description |
---|---|
Length | Length of the room in feet |
Width | Width of the room in feet |
Height | Height of the room in feet |
ACH | Air Changes per Hour |
CFM | Cubic Feet per Minute |
Input:
Calculation:
Result: 96 CFM
Input:
Calculation:
Result: 180 CFM
I hope you find the Exhaust Fan CFM Calculator useful. How was your experience? If you encounter any issues, please report them on our “Report an Error” page.
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