Pound force per square inch
Abbreviation/Symbol:
psi
lb/in2
lbf/in2
lbf/sq in
Worldwide use:
psi is commonly used worldwide, eg to measure car and bike tire pressure, SCUBA diving equipment, and domestic plumbing
Definition:
1 psi is the pressure exterted by one pound-force of force being applied to an area of one square inch
Common references:
50 psi is the typical pressure of water leaving a garden hose, 162 psi is the average pressure of a human bite. An aluminium SCUBA tank is typically pressurised to 3,000 psi
Usage context:
psi is commonly used worldwide, eg to measure car and bike tire pressure, SCUBA diving equipment, and domestic plumbing