Square inches to diameter

Questions and answers on how to convert things from one unit or system to another

Moderator: convert-me.com

Square inches to diameter

Postby Neonnblack » Wed Aug 31, 2011 7:31 am

I need to know the equation(and answer) of turning square inches to the OD of a pipe. It is 1.79 Sq.In. Thanks you.
Neonnblack
 

Re: Square inches to diameter

Postby convert-me.com » Wed Aug 31, 2011 10:45 am

Neonnblack wrote:I need to know the equation(and answer) of turning square inches to the OD of a pipe. It is 1.79 Sq.In. Thanks you.

The area of a circle is pi * R^2, where pi = 3.14159 and R is the radius of the circle.

Thus, knowing the area, we can calculate the radius: R = square root of ( area / pi ). In your case R = sqrt( 1.79 / 3.14 ) = 0.755 in. And then Diameter = 2*R = 2*0.755 = 1.51 in.

Please note - in real life the pipe wall has some nonzero thickness, so inner and outer diameters of the pipe are different. If your figure 1.79 sq.in. is the area of the pipe including the pipe wall, then the formula above will give you the outer diameter (OD) of the pipe. If you figure is the area inside of the pipe (excluding the wall), then the calculation gives you the inner diameter.
Convert-Me.Com - Interactive Units Conversion
http://www.convert-me.com/
User avatar
convert-me.com
Site Admin
 
Posts: 396
Joined: Fri Sep 05, 2003 4:50 pm


Return to How to convert?

Who is online

Users browsing this forum: No registered users and 1 guest

Our Privacy Policy       Cooking Measures Converter       Metric conversions