PSI, or pounds per square inch, is a unit of pressure commonly used to measure tire pressure or other gas pressures. The formula for calculating PSI is:
[ \text{PSI} = \frac{\text{Force (in pounds)}}{\text{Area (in square inches)}} ]
This means you divide the force applied (in pounds) by the area over which the force is distributed (in square inches).
Formula: psi x 6.895 = kPa
Use this formula: psi x 0.07031 = kg/cm2
Multiply inches of WC by 0.0361 to obtain PSI.
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Velocity = PSI x 12.1 THEN 12.1 Sq.Example 65 PSI x 12.1 Sq - 28.04 FPS
Formula: psi x 6.895 = kPa
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my question is what is the formula for pressure?