Online Air Velocity and Airflow Rate Calculator

Midwest Supply offers a convenient air velocity calculator online. To calculate airflow in CFM (cubic feet per minute) you’ll need the volume of airflow or air velocity, the duct type or area, and the units you're using to measure. Then hit “calculate”, and our air flow rate calculator will do the rest.

What Is Air Flow Rate?

Airflow or air flow is defined in the same manner. It refers to the movement of air in conjunction with the distance it travels to get to the airflow within an HVAC system. The airflow rate will ensure that the cooling and heating system will run as efficiently as possible. Airflow calculation conversion can reduce waste and help you save. Why is it important to know how to calculate airflow through the pipe? To reduce humidity levels whilst maximizing efficiency. When it comes to something like an HVAC airflow calculation formula, we are looking to measure the air that passes the evaporator coil. This passing air is measured in cubic feet per minute (CFM). With a CFM airflow calculator, we want to ensure that around 350 to 400 CFM per ton of cooling is being used, as this ensures the air conditioning system will run properly.

Online Air Flow Calculator

Air velocity is the distance traveled per minute and it is used as a measurement to calculate the displacement rate for air and gas. Air velocity is expressed in LFM (linear feet per minute). By using an airflow through duct calculator, you're multiplying the air velocity by the area of a duct. With this, you'll find the air volume that flows past the duct in terms of units per time. This measurement is typically represented in CFM (cubic feet per minute), but with an airflow calculation conversion, you can find a CMH airflow calculation, which measures the airflow per hour instead of per minute.

How Do You Calculate Air Flow Rate (Airflow Calculation Formula)?

If you're wondering how to calculate air flow rate from pressure and diameter, we are sharing the equation to use in case you're skipping the calculator for your at-home air flow calculation using pressure.

The airflow calculation through the pipe equation is represented as:

In this air flow calculation formula, the values are represented as “d” (pipe inner diameter in inches), “v” (air velocity ft/s), and Qa (airflow rate in CFM).

Being aware of how to calculate airflow through a pipe is key to running your system properly. For many, this can be a challenging calculation, and the HVAC duct flow calculation isn't taught to all technicians. However, knowing how to calculate airflow through a duct can lend a hand in figuring out any issues that may arise with your air conditioning system.

No more wondering, “how do you calculate air velocity” with our formula to calculate the air flow rate in pipe systems. Knowing how to calculate airflow is the key to running an HVAC system smoothly, aiding in troubleshooting any issues that may arise.

Conclusion

Still, struggling with how the CFM airflow calculator works? Do not fret, our team at Midwest Supply can help. Contact us at (847) 773-1023 and our specialists will answer all your questions about how to calculate air flow in duct systems for a perfectly operating heating and cooling unit.