simple and easy pressure converter tool for 4 most popular pressure converter conversion task 1.bar to psi 2.psi to bar 3.kPa to psi 4.psi to kPa how to convert bar to psi ? 1.input your number on in first text input 2.select bar on first drop down menu 3.select psi on second drop down menu 4.the result will appear on second text input instantly how to kpa to psi ? 1.input your number on in first text input 2.select kilopascal [kPa] on first drop down menu 3.select psi on second drop