Duct Sizer

Enter two known properties and the duct sizer will calculate the rest.

Inputs:

(CFM)


(in. wg/100 ft.)

Results:

PropertyValue
Air Flow (CFM):
Velocity (fpm):
Pressure Loss (in. wg/100 ft.):
Duct Diameter (in.):
Rectangular Dimensions (in.):

Please correct these mistakes and try again: