### Absolute Pressure Calculation

The calculator can calculate the absolute pressure or gauge pressure or atmospheric pressure as selected from drop-down based on given appropriate values. Pressure is the force per unit area applied to any object in a direction perpendicular to the surface. Pressure is defined as the normal force per unit area of a surface.

where, P

**Absolute Pressure**: P

_{a}= P

_{g}+ P

_{at}

**Gauge Pressure**: P

_{g}= P

_{a}- P

_{at}

**Atmospheric Pressure**: P

_{at}= P

_{a}- P

_{g}

where, P

_{a}= Absolute Pressure, P

_{g}= Gauge Pressure, P

_{at}= Atmospheric Pressure.