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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Credit: US Army CC-BY 2.0

Pounds per square inch is usually measured using pressure gauges, but for boxing measurements, special machines are used. These machines calculate how hard a punch is by measuring the power of the punch at impact, calculating the size of the impact zone, and converting that to psi. So if a punch is 1,500 psi and covers four square inches of space, it is the equivalent of 6,000 pounds of impact.

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## Related Questions

• 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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• A:

Converting from pounds per square inch to pascals is a simple unit conversion problem that can be solved in a short amount of time with pencil and paper or calculator. Simply multiply the known information by the conversion factor, cancel the units and solve the equation.

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• 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.