1 pa, = 1 N/m2. 1 pa, = 0.004 inH2O. 1 kpa, = 0.145 lbf/in2 (psi). 1 kpa, = 0.292 inHg. 1 kpa, = 7.5 mmHg. 1 atm, = 760 mmHg. 1 atm, = 14.696 lbf/in2 (psi).
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