For adults, the standard basketball size is Size 7. This ball has a circumference of 29.5 inches (75 cm) and weighs around 22 ounces (620 grams). Size 7 is used for men’s professional, collegiate, and high school games.
For women, the standard basketball size is Size 6, which has a circumference of 28.5 inches (72 cm) and weighs about 20 ounces (570 grams). Size 6 is commonly used in women’s professional, collegiate, and high school basketball games.
So, if you’re looking for a basketball for an adult male, Size 7 is the appropriate choice, while Size 6 is typically used for adult females.
