Multiply this number by 3 14 pi to get the area of the round duct in square inches for example 16 x 3 14 50 24 square inches.
Rectangular to round duct transition calculator.
Step 5 select a size of square duct that has the same area.
Friction loss calculator for flexible ducts.
This can be found by multiplying the two adjacent sides of the rectangular duct.
The table below can be used to compare equivalent diameters for rectangular and round circular ducts.
Transition elbow offset box wedge.
I want to calculate.
Converting a rectangle to round sheet metal duct work is something that is common in hvac.
Other hart cooley mobile tools.
Step 1 use a square or rectangle to round transition calculator.
Remember to add if bending the lower scrape in or out upper diameter.
Square to round calculator.
Friction loss calculator for sheet metal ducts.
Step 2 enter in the value for the diameter of the round.
Equivalent duct calculator round vs rectangular.
Round use a slightly smaller diameter for less crimping or to finish.
The table is based on the ducts friction loss formula.
The rectangular dimensions and the air flow volume are adapted to the equal friction loss.