The Cubic Feet per Minute (CFM) can be calculated in several different ways depending on the context. For instance, in HVAC systems, it is used to measure airflow. The formula for calculating CFM in this context is:

CFM = (Air Velocity in Feet per Minute) x (Cross-Sectional Area of Duct in Square Feet)

Additionally, CFM for exhaust fans is often calculated using a different approach. One common method involves using a specific formula based on the size of the room and the desired number of air changes per hour.

If you have a specific scenario in mind, please feel free to provide more details for a more tailored explanation.

Sources

CFM CalculatorCalculating CFM | Automation Components, Inc.Exhaust Fan CFM Calculator & Chart - Industrial Fans DirectCalculating CFM or Velocity from Area - YouTube

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