HVAC Duct Sizing Calculator

Size rectangular and circular ducts for HVAC systems using equal friction, velocity reduction, or static regain methods

Each component has a specific meaning:

• Equal friction — The equal friction recorded for the patient or scenario being assessed.
• Velocity reduction — The velocity reduction recorded for the patient or scenario being assessed.
• Or static regain methods — The or static regain methods recorded for the patient or scenario being assessed.

Note: Interpret the duct sizing result against the clinical thresholds and context described above.

Enter the equal friction, velocity reduction, or static regain methods for the patient or scenario you are assessing. Size rectangular and circular ducts for HVAC systems using equal friction, velocity reduction, or static regain methods. Use the duct sizing result to inform your clinical assessment.