The Pressure from Energy and Volume calculator computes the pressure (P) from an amount of energy exerted on a volume.
INSTRUCTIONS: Choose units and enter the following:
Pressure: The pressure (P) is returned in pascals. However, this can be automatically converted to other pressure units (e.g. inches of mercury) via the pull-down menu.
The formula for pressure from force and area is:
p = F/A
where:
However, if you multiply both the numerator and denominator by a length or distance (d), the units change to energy(work) over volume, and the formula for pressure based on energy and volume is:
p = (F * d) /(A *d) = E/V
where: