The area will cover a two dimensional slice of the duct.
Square duct to round duct calculator.
To then convert that to volume you multiply the resulting area by the length.
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.
It is particularly handy to provide the area in square feet of round duct as well.
Equivalent duct calculator round vs rectangular.
Read round duct diameter inches and friction loss per 100 of duct inches of water.
Convert round duct size to rectangular duct size for equivelant airflow.
This is a handy tool when deciding what size duct you want to use for your application.
Duct areas in square feet can be calculated by using geometry rules for round areas.
The table below can be used to compare equivalent diameters for rectangular and round circular ducts.
Wide x deep lower scrape.
Add for right seam.
Step 5 select a size of square duct that has the same area.
Enter duct airflow cfm duct velocity fpm duct length and the number of bends.
This calculator can be used to calculate the area in square feet when the height inches and width inches of rectangular duct is known.
New duct sizing chart xls.
Remember to add if bending the lower scrape in or out upper diameter.
The table is based on the ducts friction loss formula.
Friction loss calculator for flexible ducts.
Round use a slightly smaller diameter for less crimping or to finish the top with an added round collar lower.
The rectangular dimensions and the air flow volume are adapted to the equal friction loss.
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Add for left seam.
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.
Square to round calculator.
I want to calculate.
Flexible duct round metal pipe 750 1200 14 16 design airflow 50 85 125 1500 2000 180 240 325 525.
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.
Sheet metal duct friction loss calculator.
If you need more information or help please contact.
Friction loss calculator for sheet metal ducts.
Other hart cooley mobile tools.
