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.
Boys in middle school (or ages 12-14), use a 28.5-inch ball, as do all women and girls ages 12 and up.
The circumference of the basketball should be 29.5" and the weight 22 oz. Size 6 Basketball: 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 distance from the gym floor to the rim is 10 feet. This rim height is the same for Junior High, High School, NCAA, WNBA, FIBA, and the NBA. Some kids’ leagues will lower the hoop to 8 feet or 9 feet to acknowledge that younger kids have difficulty shooting at 10 feet high hoops.
Tween and Teen Boys Basketball. Boys, of middle school to high school age generally use a size 7 basketball, also known as a regulation or official size ball. This is the same size ball used by college and professional men's basketball teams. It measures 29.5 to 30 inches and weighs between 20 and 22 ounces.
Overall Court Regulation Sizes are typically: NBA Professional and College – 94 feet long and 50 feet wide. High School – 84 feet long and 50 feet wide. Junior High – 74 feet long and 42 feet wide. The Foul Line: For all courts the “foul line” distance is 15 feet from the foul line to the front of the backboard.
The overall size of a High School Basketball court is typically 84 feet long and 50 feet wide. Some Junior High School court will measure 74 feet long and 42 feet wide. High School Basketball Court Dimensions
For children in this age group, use the lowest setting available on the basketball hoop which should be around 6 – 7 feet. The main goal is to let the kid accustom to the sport so no need to do anything complex yet. Age 8 To 9 (3rd Grade To 4th Grade): 8 Feet.
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