Size : Circumference : Weight : Recommended For: Size 7: 29.5" 22 oz: Men and boys ages 15 and up. This is official size for high school, college, and the pros. Size 6: 28.5" 20 oz: Boys ages 12-14. Girls and women ages 12 and up. 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.
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.
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NBA Memphis Grizzlies Spalding Official Size 29.5" Basketball. NBA. 4.8 out of 5 stars with 12 ratings. 12. $16.99. Shipping not available. Not at your store.
For boys, a size 7 basketball should be used once they hit 14-years-old and is the official size used at the high school, college, and professional level. The circumference of the basketball should be 29.5" and the weight 22 oz.
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. The WNBA uses a slightly smaller ball, measuring 28.5 inches in circumference, also known as #6.
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Wilson NCAA Official Game Basketball (29.5") $74.99. Shipping Available. ADD TO CART. Wilson Evolution Official Basketball (29.5") $69.99. Shipping Available. ADD TO CART. Wilson Official EVO NXT Basketball 29.5”.