official size

What Size Basketball Should I Get? Age and Gender Basketball Size Ages 9-11 Youth 27.5′′ Size 5 Women and girls age 12 and up Boys ages 12-14 Women’s Official Size Boy’s Intermediate 28.5” Size 6 Men age 15 and up Men’s Official Size 29.5” Size 7 Is a size 7 basketball NBA size? Size 7.