18 inches
It is 144.5 cm.
The inside radius of a basketball goal/hoop is 9 inches.
The hoop is 18 inches / 457.2 mm in diameter.
The hoop is 18 inches in diameter.
The diameter of an official NBA basketball hoop is 17 inches, about an inch less than twice the diameter of a men's ball. Other sizes are available for practice or games other than regulation basketball.
that's 304.8 cm.
2 times.
A size 3 ball requires a size 3 hoop. A size 3 hoop is a 14" diameter hoop. (Usually with a 32" backboard.)
The hoops are the same height as a normal basketball hoop is.
The size of a high school basketball hoop is 18 inches across on the inside. The hoop or ring as it is called is made from 5/8 inch high tensile steel. The entire assembly, which includes a safety feature, in mounted so the top of the ring is 10 feet above the playing surface below.
Basketball has a backboard for the ball to bounce off. Netball hoops just have a hoop no backboard. You have to be very acurate. Also in netball the diameter of the rings is 3 inches smaller.