This is the official size for women’s high school, college, and pro basketball. Size 5: 27.5" 17 oz: Boys and girls ages 9-11 years old. This is the standard youth basketball you find in most stores. Size 4: 25.5" 14 oz: Boys and girls ages 5-8 years old. Size 3: 22" 10 oz: Boys and girls ages 4-8 years old. Also known as "mini" basketball. Size 1: 16" 8 oz
The official NBA and competitive professional basketball is 29.5” | 74.9 cm in circumference with a diameter between 9.43”-9.51” | 24-24.2 cm. Professional basketballs must be inflated to a pressure between 7.5-8.5 PSI and cannot exceed the maximum weight of 22 ounces.
What is the Diameter of a Basketball? A standard NBA basketball has a diameter between 9.43 and 9.51 inches. In the WNBA, the basketball has a diameter of between 9.07 and 9.23 inches.
National Basketball League. 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.
Basketball size 7, Men: Circumference: 29.5'' - 30'' 75-76 cm Weight: 20 - 22 oz 567 - 624 g: Players: Size 7 is the official "standard" basketball for men and boys from 12 yrs and up. Basketball Size 6, Women: Circumference: 28.5'' - 29'' 72 - 74 cm Weight: 18 - 20 oz 510 - 567 g: Players: Ball size 6 is women's official basketball size.
Size 7 (29.5" or 75cm) is the official size of all adult basketballs, suitable for male basketball players aged 13 years and over. Shop Size 7 Basketballs.
For professional players, a basketball size is assigned based on their age, gender, and their level of experience. The standard basketball used on most NBA games measures 29.5 inches in circumference, also known as a size #7. This is also the same size that is used by NCAA College and HS basketball leagues for male players.
Basketball Size Chart. Here’s a table comparing the most common basketball sizes: 3,4,5,6 and 7. Note that smaller sizes are much harder to come across. Size 7 (Official Men’s) For men and boys aged 15+. Used in high school and college play, official size for NBA, Men’s FIBA and NCAA games.