Dimensioned drawing showing the circumference and diameter of a professional Basketball

Basketball

*Under Development*

Circumference: 29.5” | 74.9 cm
Diameter: 9.43”-9.51” | 24-24.2 cm.
Pressure: 7.5-8.5 PSI
Weight: 22 ounces (maximum)
Material (Indoor): Full-grain leather
Material (Outdoor): Rubber

Basketball sizes come in variations for different ages, genders, and level of play. The official NBA and competitive professional basketball is 29.5” | 74.9 cm in circumference with a diameter between 9.43”-9.51” | 24-24.2 cm. Professional basketballs must be inflated to a pressure between 7.5-8.5 PSI and cannot exceed the maximum weight of 22 ounces. When choosing a basketball, consider whether the play environment will be primarily outdoor or indoor because indoor basketballs perform best as full-grain leather constructions and outdoor basketballs are better as rubber.

Basketball sizes come in variations for different ages, genders, and level of play. The official NBA and competitive professional basketball is 29.5” | 74.9 cm in circumference with a diameter between 9.43”-9.51” | 24-24.2 cm. Professional basketballs must be inflated to a pressure between 7.5-8.5 PSI and cannot exceed the maximum weight of 22 ounces. When choosing a basketball, consider whether the play environment will be primarily outdoor or indoor because indoor basketballs perform best as full-grain leather constructions and outdoor basketballs are better as rubber.

Drawings include:
Basketball elevation

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