# How can I calculate gas pressure?

May 28, 2015

The calculation depends on whether you wish to calculate the pressure using an ideal model or a real life model. For simplicity, we will assume ideal conditions.

The ideal gas equation is as follows:

$P V = n R T$

Where:

$P$ = pressure
$V$ = volume
$n$ = moles
$R$ = constant
$T$ = temperature in kelvin

To calculate pressure, simply rearrange the formula algebraically and use the appropriate values:

$P = \frac{n R T}{V}$