top of page

Duct Size Calculator

Note: Duct Dimensions are always Inner Dimensions

Ductulator

Instructions:

  1. Select English or Metric Units

  2. Select Material Type from the dropdown menu.  (Note, the button next to the selection field will bring you to a specification sheet for the material type you selected).

  3. Enter the air volume in CFM [l/s].

  4. Select an input criteria and enter its value.

  5. Optional: Enter a constraining rectangular duct dimension in inches [cm]

  6. Click the Calculate button

  7. The results are displayed in the results table.

Air Diffuser
Commercial Kitchen Exhaust Hood CFM
Ballpark Cooling Load Calculation
Dehumidifier
Air Mixing
Air Change Rate
Ductulator  Demonstration Video
Graph showing Interpolation
bottom of page