Barometric Pressure - Pressure in psi, psf and kPa

Relation between barometric pressure in inches Hg - Mercury - and pressure in pounds per square inch and pound per square foot are indicated below:

• 1 psi (lb/in²) = 144 psf (lb_f/ft²) = 6894.8 Pa (N/m²) = 6.895x10^-2 bar = 27.71 in H₂O at 62^oF (16.7^oC) = 703.1 mm H₂O at 62^oF (16.7^oC)

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