Absolute Pressure (Barometer Approximation, Any Gravity)

The Barometer Approximation of Absolute Pressure (Any Gravity) calculator computes the absolute pressure based on the density (ρ), height (h) and the acceleration due to gravity (g).

INSTRUCTIONS: Choose units and enter the following:

• (ρ) Density of gas
• (g) Acceleration due to gravity.
• (h) Height of the column

Absolute Pressure (Pa):  The calculator returns the pressure in millimeters of mercury.  However this can be automatically converted to compatible units via the pull-down menu.

The Absolute Pressure with Barometer Approximation equation calculates the absolute pressure on mercury barometer.

Reference

Young, Hugh and Freeman, Roger.  University Physics With Modern Physics.  Addison-Wesley, 2008. 12th Edition, (ISBN-13: 978-0321500625 ISBN-10: 0321500628 ) Pg 462, eq 14.9