Universal Airflow Calculator

Other Builders:    BATH BUILDER    &   HRV/ERV BUILDER    &   KITCHEN BUILDER

This calculator allows you to predict the actual airflow of your fan based on the fan and duct combinations you select. Just select the fan, duct fittings, inlets and outlets by dragging them from Area 1 to Area 2. Actual fan performance is calculated as you make changes and displayed in Area 3. Be Sure to click 'Show Specs' and enter size info for each part!
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Select Fan and Duct Elements by 'dragging' them into Area 2
Specs
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Length
Width
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Length
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Model
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Filter Size
Length
Width
Show
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Hide
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Start
Over
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Drag & Spec. Your Parts Here - Diameter in inches and Length in feet.
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Results Will Appear Here
Disclaimer: The calculated figures above are approximate. Actual performace may vary depending on installation factors. If you are not sure about your setup or how to interpret the calculated results please call us at 1-877-711-4822 before buying or building. We can help!