1 Pa = 1.4504 x 10-4 psia. = 0.020886 lbf/ft2. 1 psi = 144 lbf/ft2 = 6.894757 kPa. 1 atm = 14.696 psia = 29.92 in Hg at 30°F. 1 in Hg = 3.387 kPa. Pressure.
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