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.

Know More

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.

Related Questions

• A:

The letters "SL" on the sidewall of a truck tire indicate that the tire is a standard-load tire that holds a maximum load pressure of 35 pounds per square inch. This is the maximum load the tire carries, and manufacturers determine this capacity based on the size of the tire.

• 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.

Filed Under:
• 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.