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Conversion

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(OP)
hey guys

Can some one help me how can we convert PSI into lbf. I am working on one testing fixture whose gauge reads 40psi, I want to convert to lbf, coz the specs in the test is 300lbf. Is some know how we can convert it.

RE: Conversion

Well PSI is 1 lbf per square foot.  So your test should involve an area the pressure is acting on.  You need to multiply the area in inch^2 by the 40psi to get your lbf.

Say for example you have a 40psi force acting on a 2" rod of a cylinder.  The area of the face of the rod is 3.14 in^2.  

Therefore:

(40lbf/in^2)*(3.14 in^2)
= 125.7 lbf

Hope this helps

RE: Conversion

What everyone is saying is multiply psi * surface area to get to lbf.  Applying 40 psi to an area that is 7.5 in^2 would equal 300 lbf.

David

RE: Conversion

(OP)
Hi guys

thanks a lot for your help, I think I was calculating right but was not confident. Now I am

RE: Conversion

Yeah sorry, I meant inch.   Need to remember to read over what I typed.

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