Converting Atmospheres to Pounds Per Square Inch (PSI)

This example problem demonstrates how to convert the pressure unit atmospheres to pounds per square inch (psi). Problem:The pressure under the ocean increases roughly 0.1 atm per meter. At 1 km, the water pressure is 99.136 atmospheres. What is this pressure in pounds per square inch? Solution:1 atm 14.696 psi Set up the conversion so the desired unit will be canceled out. In this case, we want psi to be the remaining unit. pressure in psi (pressure in atm) x (14.696 psi/1 atm)pressure in psi (99.136 x 14.696) psipressure in psi 1456.9 psi Answer:The pressure at a depth of 1 km is 1456.9 psi.