Duct Size Calculator is a useful application tool designed for HVAC professionals for performing quick sizing analysis. This Duct Sizer app allows you to calculate the flow rate, duct size, pressure drop and velocity for HVAC ductwork (like a classic cardboard ductulator).NOTE: Duct Size Calculator is using Imperial Units. Icons on this app are made by Icons8 team.

Duct Size Calculator - HVAC alternatives

SuperCool Slide Rule HVAC