Q:

What does PSI stand for?

A:

PSI stands for pounds per square inch, a unit used to measure pressure. One PSI is equal to the amount of force exerted by a pound of matter in Earth's gravity on an area 1 square inch in size.

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Full Answer

PSI is commonly used to measure the pressure of gases, such as tire pressure in cars as well as fluid pressure in many industrial settings. As it is a nonmetric unit, its use is less common outside the United States and the U.K. In other countries, the SI unit Pascal is used instead, and 1 PSI is equal to 6,894.76 Pascal.

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Related Questions

  • Q:

    What is the PSI strength of a dog's bite?

    A:

    The average strength of a dog bite is 320 to 325 PSI, or pounds per square inch. The actual strength varies from one breed to another and from one dog to another. Pit bulls have a PSI of 235, German shepherds have a PSI of 238 and Rottweilers have a PSI of 328.

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  • Q:

    What is the PSI of a regulation NBA basketball?

    A:

    A regulation NBA basketball must contain between 7 1/2 and 8 1/2 pounds of pressure per square inch, or PSI. The ball also must exhibit an official NBA approval mark.

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  • Q:

    How do you convert psi to ft lbs?

    A:

    Pounds per square inch cannot be converted to ft-lbs because psi is a measurement of pressure, whereas ft-lbs is a measurement of total energy. Neither one is in the International System of Units as a primary form of measurement. Psi and ft-lbs are primarily American and British units of measure.

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  • Q:

    How hard does a boxer punch in PSI?

    A:

    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.

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