The official size of the basketball used by the NBA is 29.5 inches in circumference. That’s the same size used throughout men’s college and high school basketball leagues.
For boys, a size 6 basketball should be used between the ages of 12 and 13. For girls, a size 6 basketball should be used once they hit 12-years-old and is the official size used at the high school, college, and professional level. The circumference of the basketball should be 28.5" and the weight 20 oz.
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.
A basketball with a different size could cause a professional player to adjust how they use it to get the same results. It is imperative that there is a standard requirement for basketballs being used in the NBA. The NBA uses a basketball that is 29.5 inches in circumference. This basketball is known as a size 7.
Regulation weights and sizes for different leagues. NBA. The NBA uses full-grain leather balls made by Wilson. They are size 7 and weigh 22 ounces, have a circumference of... WNBA. Spalding has been making the official game balls for the WNBA since 1997 when the league first started. FIBA. Molten ...
Spalding NBA Indoor/Outdoor Official Size Replica Game Ball (Official Size 7 (29.5") Bundle) . If you’re looking for a great ball to practice with, this professional model is a great choice. It’s the same dimensions as regulation options and is an official replica of game balls.