How to Calculate CFM (Cubic Feet Per Minute)

How to Calculate CFM (Cubic Feet Per Minute) from FPM ?

FPM to CFM Conversion

CFM, termed as Cubic Feet Per Minute is used to measure the air flow in or out of a space or room. It can be expressed in units as ft3/min.The CFM can be calculated based on the FPM (Feet per minute) and the area of the air space.
How To Calculate Cfm
Formula :
Cubic Feet Per Minute (CFM) = Feet Per Minute x Area of Air Space
Cubic Feet Per Minute Formula
Step 1:Consider the area of an air space as 100 square feet and the feet per minute (FPM) as 50.
Area = 100 sq.ft
FPM = 50 ft/min
Fpm Cpm Conversion Step 1
Step 2:Substituting the values in the formula,
CFM = FPM x Area
= 100 x 50
= 5000
Fpm To Cfm Conversion Step 2
Hence, Cubic Feet Per Minute (CFM) is 5000


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