0
30 inches - The circumference of a Basketball varies according to the governing organization's rules. According to the FIBA, it is 78 cm (30.7"). In the NBA, it is 29 1/2" to 29 3/4" around the channels and 29 5/8" to 29 7/8" across the channels. In the NCAA the maximum Circumference is 30".
The NBA also recommends these sizes for different athletes
- Size 3: circumference 22 to 22.5 inches, weight 10-11 ounces, recommended for small children (age 5-8). It has a diameter of 7 to 7.16 inches and a radius of 3.5 to 3.58 inches
- Size 5: circumference 27.25 to 27.75 inches, weight 16.6-18 ounces recommended for boys and girls under 12 years old (junior league). It has a diameter of 8.67 to 8.83 inches and a radius of 4.34 to 4.42 inches.
- Size 6: circumference 28.5 to 29 inches, weight 20 ounces, recommended for boys and 12-14 and girls and women age 12 and up. This is the official game ball for women's high school, university and professional Basketball. It has a diameter of 9.07 to 9.23 inches and a radius of 4.54 to 4.62 inches.
- Size 7: circumference 29.5 to 30 inches, weight 22 ounces, recommended for men and boys age 15 and up. This is the official game ball for men's high school, university and professional basketball. It has a diameter of 9.39 to 9.55 inches and a radius of 4.7 to 4.77 inches.
Still curious? Ask our experts.
Chat with our AI personalities
TaigaEvery great hero faces trials, and you—yes, YOU—are no exception!
Chat with Taiga
FranI've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
JordanLooking for a career mentor? I've seen my fair share of shake-ups.
Chat with JordanAdd your answer:
Earn +20 ptsQ: What is is a circumference of basketball?
Write your answer...
Submit
Still have questions?
Continue Learning about Geometry
What is the circumference of a loonie?
A circumference is 4
Circumference circle of 8ft?
25.13 feet is the circumference. (diameter x pi = circumference).
What definition of circumference?
The circumference is the distance around a closed curve. Circumference is a special perimeter.
What is the relationship between diamter and circumference?
circumference = pi*diameter or pi = circumference/diameter
What part of speech is circumference?
Circumference is a noun.
Trending Questions
When you stand i a room your feet are on the?
What is the relationship bewteen an octagon and October?
What is the exterior angle of a 7 sided polygon?
What are the interior and exterior angles of a heptagon?
How many lines of symmetry in a square?
How do you find the perimeter of a baseball field?
When the surface of a mirror curves inward like the inside of a bowl it called a?
What object make a cylinder?
What is the measure of an angle if it is 36 less than twice the measure of its complement?
What is the circumference of a circle whose radius is 14 cm?
What is the volume of 1cm x 1cm squared of air?
How do you work out the squared meter area of a room?
What does with all the rights and privileges pertaining thereto mean?
Premature loss of the can cause arch disharmony?
What is a polygon with four sides and four angles?
25000 square meters equals how many feet?
What describes each face on a dodecahedron?
How do you find the radius of a circle given the coordinates of the center and edge?
What does 18k TH Geo means on a ring?
What is the square meters of a room 5m by 4m?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.