Basketball Size Guide

Basketballs come in all sizes and styles. From a size 3 kids novelty ball all the way up to a size 7 - the official sized game ball of the NBA.
Take a look at our size guide below to determine the right-sized basketball for you. 

 


 

SIZE 7 - OFFICIAL NBA BALL SIZE

The NBA Official Game Ball  meets all size and weight specifications set by the NBA with a circumference of 29.5" (75cm).
Featuring a full-grain leather cover for excellent grip and agility, the Spalding Gameball has been the Official ball of the NBA since 1983.

 


 

SIZE 6 - OFFICIAL WNBL BALL SIZE

Size 6 is the official size of the WNBL Basketball and the the official size for women’s basketballs aged 9 and up.
The Size 6 basketball has a circumference of 28.5" (72cm).

 


 

SIZE 6 - AGES 9 - 12 YEARS

Size 6 is the standard basketball size for males aged 9 to 12 years old. The Size 6 basketball has a circumference of 28.5" (72cm).

 


 

SIZE 5 - FOR AGES 5 - 8 YEARS

Size 5 is the standard basketball size for boys and girls aged 5 - 8 years old. The Size 5 basketball has a circumference of 27.5" (69.5cm).

 


 

SIZE 3 - NOVELTY - FOR ALL AGES

Size 3 is a novelty-sized, or 'mini' basketball that is suitable for all ages. The Size 3 basketball has a circumference of 22" (55.9cm).