As of Version 9.0, unit functionality is built into the Wolfram Language

is a unit of pressure.


  • To use PoundsPerSquareInch, you first need to load the Units Package using Needs["Units`"].
  • PoundsPerSquareInch is equivalent to approximately 6894.76 Pascal (SI units).
  • PoundsPerSquareInch is equivalent to PSI.
  • Convert[n PoundsPerSquareInch,newunits] converts n PoundsPerSquareInch to a form involving units newunits.
  • PoundsPerSquareInch is typically abbreviated as psi.