Incredible Basketball Hoop Diameter 2023. Web the size of the basketball rim’s radius is 9 inches and the diameter is 18 inches. Web a regulation basketball hoop is 10 feet (3.048 meters) off the ground, with a hoop diameter of 18 inches (0.457 meter).
A size 7 or 6 ball will not fit into a basketball hoop. All basketball rims (hoops) are 18 inches (46 cm) in diameter. However, the size can vary for personal hoops.
