A basketball with a diameter of 19.5 is considered a Middle school size basketball. The size 6 women's regulation ball is between 28.5 inches.
The size of a middle school basketball is 29.5 inches.
It depends what size basketball you have but the normal size is ten inches.
12 in diameter
The regulation size for a high school basketball rim is 6 ft wide by 42 inches tall. Basketball rims are 18 inches in diameter.
A women's basketball is 28.5 cm in diameter
11 inch diameter
Throughout middle school, high school, college and professional basketball, the backboards are the same size. They are also the same distance off of the floor at 10 feet.
The diameter of an NCAA (and NBA) basketball is approximately 9 inches (22.86 cm). This is a size 7 basketball.
regulation size is18 inches in diameter