The size of the basketball rim’s radius is 9 inches and the diameter is 18 inches. The circumference of the rim is 56.5 inches. The rim itself is made of tensile carbon steel and made of around 5/8″ in diameter of solid steel rod. A men’s basketball diameter is around 9.5 inches and circumference is 29.5 inches.
What’s the circumference of a basketball?
Size 7 basketballs measure 29.5” in circumference and have a standard weight of 22 oz. Size 7 basketballs are the standard ball size for most men’s professional basketball associations, as well as men’s college and high school basketball leagues.
Is NBA rim bigger than college?
Are college basketball rims bigger? No. The hoop size and distance off the floor are the same.