Psi full form: Guide to Full Form of

Guide to Full Form of PSI . Here we discuss the Definition and How to Calculate Pounds Per Square Inch along with Difference. PSI is a unit of pressure used mainly in the United States and other countries using the imperial measurement system. PSI measures the amount of force (in pounds) exerted per square inch of surface area. PSI full form is Pounds per Square Inch, a pressure unit used in tires, hydraulics, and industries for safety and efficiency. PSI Full Form : A Police Sub Inspector ( PSI ) is an essential law enforcement officer authorized to enforce laws, investigate crimes, prevent unlawful activities, and apprehend criminals.