Kristian Ferrell
Basketballs vary in size depending on the age, gender, and level of play. The official size of the basketball used in the NBA is 29.5 inches in circumference, with a diameter of 9.43–9.51 inches. The WNBA uses a slightly smaller ball, measuring 28.5 inches in circumference and 9.07–9.23 inches in diameter. For international play, the basketball used is called a Molten GL7 for men and Molten GL6 for women. These basketballs are slightly bigger, with a 30.7-inch circumference for the men's ball and a 29-inch circumference for the women's.
| Characteristics | Values |
|---|---|
| Circumference | 29.5 inches (74.9 cm) |
| Diameter | 9.43-9.51 inches (24-24.2 cm) |
| Inflation Pressure | 7.5-8.5 PSI |
| Weight | 22 ounces |
| Material | Leather, rubber, synthetic composite |
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What You'll Learn
- The official NBA basketball size is 29.5 inches in circumference
- The WNBA uses a slightly smaller ball, at 28.5 inches in circumference
- For international play, the men's basketball is bigger than the WNBA ball, at 30.7 inches in circumference
- The women's international basketball is 29 inches in circumference
- Boys in middle school use a 28.5-inch ball
The official NBA basketball size is 29.5 inches in circumference
Basketballs come in different sizes depending on the age, gender, and level of play of the players. The official size of a basketball used in the NBA is 29.5 inches in circumference, with a diameter of between 9.43 and 9.51 inches. This is also the standard size used in men's college and high school basketball leagues.
The NBA-approved basketball is made of synthetic or composite leather and must be inflated to a pressure of between 7.5 and 8.5 PSI. This pressure range is also used in the WNBA, while in the NCAA, inflation requirements are given in weight, with the men's ball having a maximum weight of 22 ounces and the women's ball a maximum weight of 20 ounces.
The three best-selling basketball brands are Spalding, Nike, and Wilson. Spalding is the official ball of the NBA, while the NCAA and most youth leagues use Wilson. Nike and Wilson are also popular due to the variety of textures, technologies, and color schemes they offer.
Basketballs used in international play, specifically FIBA, are called Molten GL7 for men and Molten GL6 for women. These basketballs typically feature two different colors and are slightly bigger, with a circumference of 30.7 inches for the men's ball and 29 inches for the women's.
The size of a basketball is important as the ball needs to be light, durable, easy to hold, and elastic so that it bounces back to the player when dribbled.
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The WNBA uses a slightly smaller ball, at 28.5 inches in circumference
Basketballs come in different sizes depending on the age, gender, and level of play of the players. The official size of the basketball used by the NBA is 29.5 inches in circumference. This is the same size used throughout men's college and high school basketball leagues.
However, the WNBA uses a slightly smaller ball, at 28.5 inches in circumference. This is also the standard ball size for boys in middle school (or ages 12-14), as well as all women and girls aged 12 and above. The WNBA ball has a diameter of between 9.07 and 9.23 inches, compared to the NBA ball's diameter of between 9.43 and 9.51 inches.
The WNBA and NBA also have the same pressure regulations for their basketballs, with a required pressure of 7.5 to 8.5 PSI. This is crucial to ensure the ball bounces predictably and consistently. Spalding is the official ball of the NBA, and it is also used by the WNBA.
For international play, the basketball used is typically bigger, with a circumference of 30.7 inches for men and 29 inches for women.
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For international play, the men's basketball is bigger than the WNBA ball, at 30.7 inches in circumference
Basketballs come in different sizes depending on the age, gender, and level of play of the players. The circumference of the ball is the standard measure used to determine the size of a basketball.
The official size of the basketball used by the NBA is 29.5 inches in circumference. This is the same size used throughout men's college and high school basketball leagues. The WNBA uses a slightly smaller ball, measuring 28.5 inches in circumference.
For international play, the men's basketball is bigger than the WNBA ball. The international basketball federation, FIBA, uses the Molten GL7 for men and the Molten GL6 for women. These basketballs typically feature two different colours and are slightly bigger, with the men's ball measuring 30.7 inches in circumference and the women's ball measuring 29 inches.
Boys in middle school (or ages 12-14) use a 28.5-inch ball, as do all women and girls aged 12 and up. For anyone, male or female, between the ages of nine and 11, a ball size of 27.5 inches in circumference is recommended and is the most commonly used size in youth basketball leagues.
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The women's international basketball is 29 inches in circumference
Basketball is a team sport played by two teams, typically consisting of five players each, with the primary objective being to shoot the basketball through the defender's hoop. The rules for women's basketball are almost identical to the rules for men's basketball, with the most noticeable differences being the circumference and mass of the ball.
The official size of the basketball used in the NBA is 29.5 inches in circumference, which is also used throughout men's college and high school basketball leagues. The WNBA, on the other hand, uses a slightly smaller ball, with a circumference of 28.5 inches. This is also the standard size for women's basketball in college and high school leagues.
For international play, specifically in FIBA (International Basketball Federation) tournaments, the basketball used is called a Molten GL6 for women. This basketball typically features two different colours and is slightly bigger than the balls used in the WNBA or NCAA, with a circumference of 29 inches. This is the standard size for all senior-level women's competitions worldwide.
Therefore, the women's international basketball, or the Molten GL6, is indeed 29 inches in circumference. This is slightly larger than the basketball used in the WNBA and NCAA, but smaller than the basketball used in the NBA.
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Boys in middle school use a 28.5-inch ball
Basketballs are designed to be light, round, elastic, and durable. They are made of a variety of materials, including leather, rubber, and synthetic composites. The balls are divided by ribs that are generally a contrasting colour to the surface of the ball, which is traditionally orange. The balls also come in different sizes depending on the age, gender, and level of play of the players.
The official size of the basketball used in the NBA is 29.5 inches in circumference, with a diameter between 9.43 and 9.51 inches. This is the same size used throughout men's college and high school basketball leagues. The WNBA uses a slightly smaller ball, with a circumference of 28.5 inches and a diameter between 9.07 and 9.23 inches.
For boys in middle school, or ages 12-14, a 28.5-inch ball is recommended. This is the same size used by all women and girls ages 12 and up. This size is also known as a size 6 basketball and has a weight of 20 ounces. Using a basketball that is too big or too small can lead to players developing poor shooting technique.
The size of the basketball is important as it affects the player's ability to dribble, shoot, and control the ball. A ball that is too big can be difficult for young players to handle, leading to the development of bad habits such as dropping the shoulder or slinging the ball. It is therefore important to choose the right size of basketball for the player's age and level of play.
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Frequently asked questions
An NBA basketball has a diameter between 9.43 and 9.51 inches.
A WNBA basketball has a diameter between 9.07 and 9.23 inches.
High school and junior leagues normally use basketballs with circumferences of 29.5 inches (NBA and WNBA) or 28.5 inches (WNBA).
