What is the formula for calculating pressure as a function of height?

Micko · Aug 27, 2006

Hello people,
I know that normal athmosferic pressure on the sea level is 101325 Pa.
However I need to know how pressure is changed with height. I know, for example, that on 200 m above sea level it will be smaller but how much I don't know.
Can you suggest forumula? i think it can be approx. linear but don't know slope.
Thanks for help.

Bystander · Aug 27, 2006

http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/barfor.html

quark · Aug 28, 2006

Formula from the bureau of mines is
Pamb = [(44331.5-Z)/4946.624]^1/0.190263
This equation is valid upto 10 km height. P is in Pascals and Z is height above mean sea level in km.

What is the formula for calculating pressure as a function of height?

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