The psi, or pounds per square inch, is a unit of pressure (P) using the foot-pound-second (FPS) system. To calculate psi, divide the force applied (F) with the area (A).Know More
Use an instrument such as a force gauge, spring scale or strain gauge. Make sure that the unit is in pounds. Convert the value if necessary.
Measure the length and the width, and make sure that both values use the same unit, in this case inches, you can proceed to multiply them.
Divide the measured force (in pounds) with the measure area (in square inches).
The average professional heavy weight boxer hits at between 1,200 to 1,700 pounds per square inch, or psi. Legendary boxer Mike Tyson had a punch that was measured at 1,800 psi, or almost one ton of force per square inch.Full Answer >
Common units for pressure include the Pascal, atmosphere, bar, Torr, millimeters of mercury and pounds per square inch. These are abbreviated as Pa, atm, bar, Torr, mmHg, and psi, respectively.Full Answer >
Residential water pressure should not exceed 80 pounds per square inch, or psi, and outdoor irrigation systems typically have a water pressure of 30 to 50 psi. Sometimes water is supplied to houses at 100 or even 150 psi.Full Answer >
Footballs should be inflated to an air pressure of 13 pounds per square inch, according to the NFL rules. Official footballs, which are manufactured at the Wilson company facilities in Ohio, weigh between 14 to 15 ounces.Full Answer >