The size 5 Basketball, also refered to as "junior" is 27.5 inches in circumference. That would make the diameter a little over 8.75 inches. (Circumference divided by PI) .
NBA size 5 is 27.75" circumference, about 22.44cm diameter
12 in diameter
regulation size is18 inches in diameter
A Size 7 basketball is usually 29.5 incheshttp://www.hrsinformer.com/2009/10/how-to-choose-a-basketball/
29.5 inches
So a size 7 basketball is a men's size basketball. A size 6 basketball is a woman's size basketball. That means a size 5 is for people who have smaller hands. That's how you compare sizes.
The Men's Size 7 regulation basketball has a circumference between 29.5-30 inches. It weighs 20-22 ounces, and has a diameter of 9.39 inches.The Women's Size 6 regulation basketball has a circumference between 28.5 and 28 7/8 inches. It weighs 17.5-19.5 ounces and has a diameter of 9.07 inches.The Juniors Size 5 basketball has a circumference between 27.25 to 27.75 inches. It weighs 16.6-18 ounces and has a diameter of 8.7 inches. It is recommended for boys and girls under 12 years old (junior league).The mini Size 3 basketball has a circumference between 22 to 22.5 inches. It weighs 10-11 ounces and has a diameter of 7 inches. It is recommended for small children (age 5-8)
YES!! The diametor of the rim in 1968 is 10.2". The Diameter of the basketball in 1968 was 5".
A size 3 ball requires a size 3 hoop. A size 3 hoop is a 14" diameter hoop. (Usually with a 32" backboard.)
The circumference is 28.5", also known as size 6
Diameter of a standard basketball is 29.5 to 30 inches (74.9 to 76.2 centimeters).
A standard basketball has a diameter of 24 centimeters in the metric system.