This calculator can be used to calculate the area in square feet when the height inches and width inches of rectangular duct is known.
Square to round duct calculator.
Other hart cooley mobile tools.
Wide x deep lower scrape.
The table below can be used to compare equivalent diameters for rectangular and round circular ducts.
To use the calculator enter your air velocity or volume air flow and duct area type select your units click calculate air flow and your converted velocity and volume.
Flexible duct round metal pipe 750 1200 14 16 design airflow 50 85 125 1500 2000 180 240 325 525.
The table is based on the ducts friction loss formula.
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Convert round duct size to rectangular duct size for equivelant airflow.
The equivalent diameter is the diameter of a circular duct or pipe that gives the same pressure loss as an equivalent rectangular duct or pipe.
Remember to add if bending the lower scrape in or out upper diameter.
Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators.
1 of 2 identical pieces like a clam.
Rectangular to round conversion.
This is a handy tool when deciding what size duct you want to use for your application.
Add for right seam.
Enter duct airflow cfm duct velocity fpm duct length and the number of bends.
Square to round calculator.
We are a next generation supplier of hard metals to the aerospace industry as well as other critical application industries.
Round use a slightly smaller diameter for less crimping or to finish the top with an added round collar lower.
Equivalent duct calculator round vs rectangular.
Add for left seam.
I want to calculate.
New duct sizing chart xls.
If you need more information or help please contact.
Sheet metal duct friction loss calculator.
Friction loss calculator for sheet metal ducts.
It is particularly handy to provide the area in square feet of round duct as well.
Friction loss calculator for flexible ducts.
Tolerance of 125 will be automatically added to each dimension.
The rectangular dimensions and the air flow volume are adapted to the equal friction loss.
