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For men, the official ball is 29.5 inches (74.9 cm) in circumference (size 7, or a "295 ball") and weighs 22 ounces (624 g). If women are playing, the official Basketball size is 28.5 inches (72.4 cm) in circumference (size 6, or a "285 ball") with a weight of 20 ounces (567 g).

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WNBA, MASCAC, ECAC, ACC, NCAA etc.. use a 28.5 inches (72.4 cm) in circumference and 20 ounces (567 g) in weight ball.

A regulation size basketball is between 29.5 and 28.975 inches in circumference. This is the standard used by the NBA

The regulation bball for women is 28.5 and the regulation for men is 29.0.

29.5"

Q: How big is a regulation size basketball?

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the answer is 22.5

The regulation size for basketball nets are all the same at ten feet. The regulation for high school, college, and the NBA/WNBA use nets that are ten feet high.

A regulation sized basketball is 29.5 inches. A 10 and under size basketball is 28.5. 28.5 is also the regulation size for women's basketball.

29.5 inches

Generally, boys' 12 and under use a womens basketball of 28.5 inches. At 13, boys' use the regulation size ball of 29.5 inches.

A NBA regulation backboard is 72" wide x 42" high

Size 7, just as big as a NBA basketball

29.5 inches in circumference is the official sze of a regulation ball!

regulation size is18 inches in diameter

The bumps on a basketball, called pebbling, are quite numerous. In fact, there are 9,342,059 of them on a regulation size basketball.there are 1,234,469,623

the same size as your hand

as big as your mom.