What Is the Equation for Calculating CFM?

The equation for calculating CFM, or cubic feet per minute, is CFM = fpm times area, where area is expressed as square feet and fpm represents feet per minute. This measurement is used for calculating air volume velocity and measuring the rate of ventilation in heating and cooling operations.

CFM is an important consideration in the installation of heating and cooling systems used in homes and offices. As a measure of air flow and ventilation, the CFM represents the volume of air that must be circulated through a room to maintain a constant temperature without causing an accumulation of moisture or humidity that can lead to dampness and the growth of mold.