9.51 inches
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Different, how do you measure a basketball?
Official sized 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.
By the way, what is the circumference and the weight of the basketball? The National Basketball Association (NBA) allows only one official ball: The ball must be the official NBA game ball manufactured by Spalding. The ball is orange in color, 29.5 (749 mm) inches in circumference and weighs 22 ounces (624 g) (size 7).
Beyond that, what is the maximum circumference of a NCAA basketball?
30 inches
What is a standard basketball backboard size?
In recreational environments, a backboard may be oval or a fan-shape, particularly in non-professional games. The top of the hoop is 10 feet (305 cm) above the ground. Regulation backboards are 6 feet (183 cm) wide by 3.5 feet (107 cm) tall. All basketball rims (hoops) are 18 inches (46 cm) in diameter.