The purpose of this calculator is to help users in the field of air duct design and airflow analysis to quickly determine the air flow velocity of air within different types of ducts and ductwork configurations. It caters to both circular and rectangular ducts, allowing users to input relevant dimensions and Volumetric  air flow rates. The calculator then computes the air velocity based on these inputs.

Additionally, the calculator serves as a compliance checker against specified velocity limits for various applications within the context of air duct systems. These applications include different types of ductwork, louvres, coils, filters, and other components. The calculator evaluates whether the calculated velocity complies with the given limits and provides feedback on compliance status. Compliant applications are displayed in green font, while non-compliant applications are shown in red.

In summary, this calculator is a useful tool for engineers, HVAC professionals, and others involved in designing and analysing air duct systems to ensure that the air velocities remain within acceptable ranges for various components and applications.

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Duct Velocity Calculator

Duct Velocity Calculator

The preliminary calculations provided on this website are intended to serve as a guide only. They are not to be considered as a decision tool for making capital investments or for detailed design purposes.

While we make every effort to ensure the accuracy and reliability of the information presented, we cannot guarantee the completeness or applicability of the results obtained from these preliminary calculations.

It is important to note that actual energy efficiency and savings may vary based on factors such as equipment selection, building design, operating conditions, and other variables not accounted for in these preliminary calculations.

Therefore, we strongly advise that any decision to invest in energy efficiency improvements should be based on a thorough analysis conducted by a qualified professional.  We would be happy to help you in this aspect if you require.

We disclaim any liability for any damages or losses arising from the use or reliance on the results of these preliminary calculations.