Basketball Sizes: What Ball Size Is Best for Your Basketball Game?

Basketball games are influenced by a variety of elements, including the size of the basketball. If a youngster who has just started practicing basketball can’t grip the ball properly if its size is incorrect. If the ball is either too small or too large for his age, he will not be able to master any basketball skills or move the ball the way he wants.

Basketball Sizes: What Ball Size Is Best for Your Basketball Game?

That’s why basketballs are available in a variety of sizes to accommodate players of varying heights, ages, and weights. To shoot the ball without slipping or make it bounce properly, you’ll need the correct size basketball. Furthermore, if you don’t have a good hold on the ball, you can easily lose the ball during the defense.

Unfortunately, due to a lack of understanding, basketball sizes are frequently overlooked mostly. That’s why we have discussed in detail what are different sizes of basketball and for whom they are appropriate. 

Basketball Sizes According To Age Group

Basketball sizes are available in seven different sizes which we have discussed below.

  1. Size Zero Or Nerf Toy

Size zero or nerf toy basketballs are the smallest-sized balls. These balls are suitable for toddlers 0 to 4 years old. These balls are usually lightweight and weigh only up to 5 oz. Moreover, these balls have a total circumference of 9 to 20 inches or less than that. 

  1. Size One

Size one or micro-mini basketballs have a circumference of 16 inches, and they are also suitable for toddlers under 4 years. But they are a bit heavy and weigh up to 8 oz. So, if your toddlers have learned to grab the ball and developed good motor skills then they can move towards the size one basketballs.

  1. Size Three

Size three basketballs are suitable for children 4 to 8 years old and it weighs 10 oz. These balls are also small having a circumference of 22 inches and are known as mini balls. 

Related article : How Much Does a Basketball Weigh – A Complete Guide

  1. Size Four

Size four basketballs are designed for kids under 5 to 8 years with an overall weight of 14 oz. That’s why the four-sized balls are a bit larger than size 3 balls and come with an overall circumference of 25.5 inches. 

  1. Size Five

Size 5 is designed for children under 9 to 11 years old. This basketball has an overall weight of 17 oz and a circumference of 27.5 inches. 

  1. Size Six

Size six basketballs are officially recognized as basketball for women aged up to 12 years. They are used mostly in women’s high schools or colleges. The same size is also recommended for boys who are between 12 to 14. These balls weigh 20 oz and come in the size of 28.5 inches. 

  1. Size Seven

Size seven basketballs are the largest basketballs. They have a circumference of 29.5 inches and weigh up to 22 oz. Boys up to 15 years of age usually use these large basketballs in their high school or college matches. These large balls are also used for professional basketball practice. 

What Is The Diameter Of The Basketball?

The diameter of a regular NBA basketball ranges from 9.43 and 9.51 inches. For women, the basketball diameter size is smaller than boys and ranges from  9.07 to 9.23 inches. 

The NCAA, on the other hand, has a different diameter range for basketballs than the NBA. The men’s basketball diameter varies from 9.39 to 9.55 inches, whereas the women’s basketball diameter is the same as the NBA women’s basketball diameter.

Why It’s Necessary To Play With Appropriate Sized Basketballs? 

To have more control over your ball and shoot properly from far away distances, it’s necessary that you use the recommended sized basketball from the size chart. We have discussed here briefly why it’s necessary to play with appropriate-sized basketball.

Accurate Shooting Technique

If you want your ball to goal every time you shoot then you need to shoot the ball properly. When you’re using the wrong size ball, your shot will not go as anticipated, and you may miss the goal. As a result, players begin to learn incorrect strategies for scoring goals with shooting. They may shoot with two hands, not hold the ball properly, and simply chuck the ball instead of shooting it.

Accurate Shooting Technique

Enjoy The True Essence Of Game

Children and toddlers can injure themselves when they play with heavy balls. Teenagers and adults, on the other hand, will miss out on the whole enjoyment of the game if they play with small balls. The reason is these light balls will bounce more which reduces the chances of a goal. That’s why the appropriate size is necessary if you want to enjoy the true spirit of basketball games. 

Final Thoughts

If you are planning to buy an indoor basketball or outdoor basketball then do consider their sizes as well. Your toddlers can hurt themselves if you give them a heavy basketball. Moreover, for your school tournaments, large-sized basketballs are preferable as they provide good shooting.  


NBA league uses size 7 basketballs in their leagues. This large-sized basketball is suitable for men aged 15 or above. The 22 oz weight and 29.5 inches diameter make them shoot the ball appropriately. 

All adult basketballs are officially recommended at size 7 (29.5″ or 75cm), which is appropriate for male basketball players aged 15 and up. For women, the appropriate size is size 6 which is also the official size for women’s basketball leagues.

The size 7 ball is the standard size basketball for all professional players. But, if you find it heavy or if you are a beginner then you may start practicing with size 6 basketball. Once you become pro at it then you may switch to the larger-sized ball. 

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