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. At the beginning of an NBA game, each team must have access to six balls during the warm-up period. A regulation backboard measures 6 feet wide and 3 1/2 feet tall.
Size: Radius: Weight: PSI: Used By: Size 7: 29.5″ 22 oz: 7.5 to 8.5: This is the official size for the NBA and men’s college and high school basketball leagues.
A regulation basketball used in NBA play is inflated to an air pressure between 7.5 and 8.5 pounds of pressure per square inch. Many balls are inflated to the average pressure of 8 pounds. Regulating a basketball's air pressure ensures fair playing conditions throughout a league. A ball's internal air pressure determines the height of its bounce.
To begin with, the NBA basketball is produced by Spalding, and the official size for men’s tournaments has to be 29.5 inches in circumference. With a weight of 22 oz., the ball can be inflated with a pressure range of 7.5 to 8.5 psi. These balls are made up of orange leather having black lettering, and are of size 7.
As mentioned, the NBA basketball weight is 22 ounces or 1.4 pounds, give or take. (That is 623.69 grams if we are using the metric system.) The official NBA basketball has a circumference of 29.5 inches and an air pressure of 7.5 to 8.5 psi. The official NBA basketball is commonly referred to as a size 7.
The NBA uses full-grain leather balls made by Wilson. They are size 7 and weigh 22 ounces, have a circumference of 29.5 inches, and are inflated between 7.5 to 8.5 PSI. These balls are orange in color with black seams for grip. WNBA. Spalding has been making the official game balls for the WNBA since 1997 when the league first started.
The officiating crew chief will inspect the three game balls for wear/tear and ensure that the balls comply with the NBA-approved ball pressure specification of between 7½ and 8½ PSI.
CHICAGO, June 17, 2021 — Wilson Sporting Goods Co., in partnership with the National Basketball Association (NBA), today unveiled the league’s new official game ball in advance of the NBA’s ...