Psi = Lb/in2 = 0.07030 kg/cm2. 1kg/㎠ = 14.2233 Psi. 1 LB = 0.4536 kg 1 in = 2.54 cm. 1psi = 0.4536 / 2.54 / 2.54 = 0.07030 kg/cm2.
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