Kristian Ferrell
Basketballs come in a variety of sizes and weights, depending on the age, gender, and level of play. The weight of a basketball is dominated by its skin, which weighs about 22 ounces (1.4 pounds) in the case of a standard size 7 basketball used in men's professional basketball associations such as the NBA. Smaller balls, such as the size 6 basketball used in the WNBA, weigh about 20 ounces, while youth leagues for players 8 and under use basketballs weighing between 14 and 16 ounces. The weight of a basketball is also influenced by the air pressure inside, which should be inflated to between 7.5 and 8.5 PSI for an NBA basketball, and the materials used in its construction, with outdoor basketballs typically made of rubber and indoor basketballs made of full-grain leather.
| Characteristics | Values |
|---|---|
| Circumference | 29.5" (74.9 cm) for men and 29" for women |
| Diameter | 9.43"–9.51" (24–24.2 cm) for men and 9.07"–9.23" for women |
| Weight | 22 oz (about 1.4 pounds) for men and 20 oz for women |
| Inflation Pressure | 7.5–8.5 PSI |
| Material | Full-grain leather for indoor use, rubber for outdoor use, or composite leather for indoor/outdoor use |
| Size | Size 7 for men and size 6 for women; sizes 5 and mini for children |
| Age | Boys in middle school (ages 12–14) use size 6; boys and girls between 9 and 11 use a size with a 27.5" circumference; boys and girls between 4 and 8 use a size between 22" and 24.5" |
| Brands | Spalding, Nike, and Wilson are the top-selling brands; Molten is used in FIBA and international leagues |
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What You'll Learn
- Basketball weight is dominated by its skin, which weighs about 22 ounces (1.4 pounds)
- Basketballs for outdoor use are made of rubber, while indoor basketballs are made of full-grain leather
- The ideal basketball size depends on the player's hand span and level of play
- Basketballs must be inflated to a pressure between 7.5-8.5 PSI
- The three best-selling basketball brands are Spalding, Nike, and Wilson
Basketball weight is dominated by its skin, which weighs about 22 ounces (1.4 pounds)
The weight of a basketball is dominated by its outer covering, which weighs about 22 ounces (approximately 1.4 pounds). The weight of the air inside a properly inflated basketball is negligible, at only about 0.03 pounds, with only 0.01 pounds of this measurable on a scale. The weight of the basketball is, therefore, largely dependent on the weight of its outer covering or "skin".
The weight of basketballs varies depending on their size, with size 7 basketballs, used in men's professional basketball associations, weighing in at 22 ounces. This is the standard weight for a basketball, as set by the NBA, WNBA, and NCAA. Size 6 basketballs, used in women's professional basketball associations and youth leagues for players 9 and up, weigh 20 ounces. Smaller basketballs for players 8 and under, with a circumference of 27.5"-27.75", have a standard weight of 14-16 ounces. Mini basketballs, with a circumference of 22.5", weigh only 10 ounces.
The weight of a basketball is an important factor in its performance. The correct weight ensures the ball bounces consistently and predictably. Overinflating or underinflating a basketball will impact its weight, with overinflation making the ball harder and less responsive, and underinflation reducing its bounce.
Basketballs are made from a variety of materials, including full-grain leather, rubber, and composite or synthetic leather. The choice of material depends on whether the ball is intended for indoor or outdoor use. Indoor basketballs are typically made from full-grain leather, which provides a good grip but can be damaged by outdoor surfaces. Outdoor basketballs are usually made from rubber, which is more durable and can withstand the abrasive surface of outdoor courts.
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Basketballs for outdoor use are made of rubber, while indoor basketballs are made of full-grain leather
The weight of a basketball depends on its size, with sizes ranging from 1 to 7. Size 1 basketballs, for instance, weigh 8 oz, while size 7 basketballs, the standard size for men's professional basketball, weigh 22 oz. The weight of a basketball is dominated by its skin, which weighs about 1.4 pounds, while the air inside a properly inflated basketball weighs only about 0.03 pounds.
Rubber basketballs are the most affordable option and perfect for beginners. Synthetic leather, which is more affordable than genuine leather, offers comparable control and grip. It also requires a shorter break-in period. However, synthetic leather basketballs may not last as long as genuine leather, especially in rough and harsh conditions. 100% genuine leather basketballs are the most expensive and offer the best control, but they are meant for indoor use only and have a prolonged break-in period.
With the rise of environmental awareness, many sports manufacturers now offer basketballs made of alternative, more sustainable materials, such as recycled rubber or biodegradable materials. The NBA, for example, continues to use leather balls with natural rubber bladders, while many high schools and NCAA programs have switched to full synthetic microfiber options.
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The ideal basketball size depends on the player's hand span and level of play
For players with even smaller hands, such as children under the age of 8, Size 5 basketballs are recommended. These balls have a circumference of 27.5"-27.75" and a weight of 14-16 oz. Smaller balls, such as those with a circumference of 22.5" and a weight of 10 oz, are commonly referred to as mini basketballs and are suitable for children under the age of 4.
It's important to choose the right size ball to improve your game and feel more confident. Playing with a ball that is too small or too large for your grip can negatively affect your skills and technique. Additionally, different leagues have varying restrictions on the size, material, and color of the balls they permit. Therefore, it's crucial to consider both hand span and level of play when selecting the ideal basketball size.
The construction of the basketball is also an important consideration. Composite basketballs, made from synthetic materials, offer durability and grip suitable for indoor and indoor/outdoor play. On the other hand, rubber basketballs, or street basketballs, are designed for outdoor use and can withstand abrasive surfaces and adverse weather conditions. Additionally, innovations like the Wilson Airless Gen 1 eliminate the need for inflation, relying on a 3D-printed structure for bounce.
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Basketballs must be inflated to a pressure between 7.5-8.5 PSI
The weight of a basketball is dominated by its outer skin, which weighs about 22 ounces (roughly 1.4 pounds). The air inside a basketball only contributes about 0.03 pounds to its overall weight. However, the amount of air inside a basketball, or its air pressure, is crucial. Basketballs must be inflated to a pressure between 7.5-8.5 PSI (pounds per square inch).
The correct PSI ensures that the basketball has the right amount of bounce and grip, making it easier to dribble, pass, and shoot accurately. Overinflating a basketball can make it harder to grip, leading to turnovers and disrupted plays. It can also cause the ball to bounce higher and move unpredictably, making it challenging for players to anticipate its movements.
On the other hand, underinflation reduces the basketball's bounce and makes it feel sluggish. Therefore, it is essential to maintain the proper PSI for optimal performance on the court. The PSI of a basketball can be checked using a pressure gauge inserted into the inflation valve.
It is worth noting that the optimal PSI may vary slightly depending on the organization and level of play. For example, the recommended PSI for women's basketball in the NCAA and FIBA is slightly lower at 6.5 to 8.5 PSI. Additionally, individual players may have their own preferences based on their playing style. However, the recommended PSI ranges are set by basketball organizations to ensure consistency and fairness in gameplay.
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The three best-selling basketball brands are Spalding, Nike, and Wilson
Basketballs are generally made of rubber or composite leather, with the latter being more suitable for indoor use. The weight of a basketball is dominated by its skin, which weighs about 1.4 pounds (22 ounces). Basketballs designed for men's professional basketball associations, such as the NBA, tend to weigh 22 ounces and have a circumference of 29.5 inches.
When it comes to basketball brands, the three best-selling ones are Spalding, Nike, and Wilson. Spalding has a rich history in basketball, as it was asked by Dr. James Naismith, the creator of basketball, to develop the first basketball in 1884. This ball became the official NBA ball in 1983, a partnership that lasted until 2021. Spalding has also partnered with over 60 franchises and leagues as of April 2024.
Wilson, also known as Wilson Sporting Goods, has had a long association with the NBA as well. The company was the official ball supplier for the NBA from 1946 to 1983 and renewed its partnership with the league in 2021. Wilson basketballs are known for their performance and experience, with their NBA Authentic Series Basketball receiving positive reviews.
Nike, on the other hand, is a well-known sportswear and equipment brand that sells basketballs alongside its other products. While specific information about their basketballs is scarce, their presence in the market and brand recognition likely contribute to their sales.
All three brands offer unique qualities that cater to different players and groups, with factors such as performance, experience, and partnerships influencing consumers' choices.
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Frequently asked questions
An NBA basketball weighs 22 ounces or 1.4 pounds.
The standard weight of a WNBA basketball is 20 ounces.
Yes, there are smaller basketballs that weigh less than 20 ounces. For example, a size 5 basketball for players 8 and under weighs 14-16 ounces, and a size 1 mini basketball for kids 4 and under weighs 10 ounces.
