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Basketball is a sport that requires specific equipment, and the ball is the most important piece of equipment in the game. The weight of a basketball varies depending on the league and level of play. For example, the official weight of an NBA basketball is between 21 and 22 ounces, or about 623 grams, while FIBA-approved balls can weigh up to 23 ounces. The weight of a basketball is an important factor in the game as it affects the player's ability to shoot, dribble, and handle the ball effectively.
| Characteristics | Values |
|---|---|
| Weight | 21-22 ounces (standard), 22 ounces (NBA standard) |
| 1.3-1.4 lbs | |
| 588-623 grams | |
| 567 grams (first basketball in 1894) | |
| Circumference | 32 inches (first basketball in 1894) |
| 30 inches (laceless molded ball in 1948-49) | |
| Composition | Butyl rubber, nylon thread, leather sleeve |
| Synthetic composite materials |
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What You'll Learn
Standard NBA basketball weight
The standard weight of an NBA basketball is between 21 and 22 ounces, which is equivalent to 1.3-1.4 lbs or 588 to 623 grams. This weight is slightly heavier than the first basketball, which was marketed in 1894 and weighed less than 20 ounces (567 grams).
The amount of air in the ball or the pressure at which it is inflated has little impact on the weight, with variation of only about half an ounce or 14 to 15 grams.
The basketball's weight is an important factor in the game, as the ball needs to be light enough to be carried, shot, and dribbled. It also needs to be durable, elastic, and have a predictable trajectory when bounced.
To achieve these properties, a basketball is typically made with a hollow bladder constructed of butyl rubber, which is then wrapped in nylon thread and covered with a surface made of leather, rubber, or a synthetic composite. The butyl rubber gives the ball its elasticity and durability, while the nylon thread provides stability and helps maintain its shape.
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Weight variation in ounces
The weight of a basketball varies depending on the league and the specifications of the ball. A standard basketball in the NBA weighs between 21 and 22 ounces, which is equivalent to 1.3-1.4 lbs or 588 to 623 grams. The amount of air in the ball or the pressure at which it is inflated makes little difference to this weight, and the variation will only be around half an ounce or 14 to 15 grams.
FIBA, on the other hand, allows for a wider range of ball weights, from 20 to 23 ounces or 567 to 650 grams. This is a slightly heavier ball than the NBA standard and allows for more variation in weight.
The weight of a basketball has changed over time as well. The first basketball, marketed in 1894, weighed less than 20 ounces or 567 grams. This ball was laced and measured close to 32 inches (81 cm) in circumference. By 1948-1949, when the laceless molded ball became official, the weight may have been slightly higher, as the size had increased to about 30 inches (76 cm).
The weight of a basketball is an important specification, as it can affect the way the ball is played. Some people believe that using a ball with a different weight than what they are used to can affect their game, including their shooting, dribbling, and handling skills. However, others argue that the weight of the ball does not make a significant difference. Ultimately, it is up to the player to decide what weight of the ball they are most comfortable with and to choose a ball that suits their preferences and the requirements of the league they are playing in.
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FIBA ball weight range
The standard weight of a basketball in the NBA ranges from 21 to 22 ounces, which is equivalent to 1.3-1.4 lbs or 588 to 623 grams. The weight of the ball has little to do with the amount of air inside, and the variation is only by half an ounce or 14 to 15 grams.
The FIBA-approved basketball, on the other hand, has a weight range of 20 to 23 ounces or 567 to 650 grams. The Molten GL7 for men and Molten GL6 for women are the basketballs used in FIBA international play. The Molten B7G5000, which was introduced in the 2019 FIBA World Cup, is also a FIBA-approved ball.
The circumference of the FIBA ball is also slightly bigger than the NBA ball, with a 30.7-inch circumference for the men's ball and a 29-inch circumference for the women's ball. The NBA ball has a circumference of 29.5 inches, while the WNBA uses a 28.5-inch ball.
The FIBA ball is made from genuine leather and has two colours: orange and ivory. The NBA ball is also made from genuine leather, but only features one colour.
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Weight in grams
The weight of a basketball varies depending on the league and the specifications of the ball. For instance, the official weight of an NBA basketball is 22 ounces, which is equivalent to 623 grams. However, the weight can vary within a range of 10 to 20 grams, and some sources state that NBA basketballs can weigh between 21 and 22 ounces, which translates to 588 to 616 grams.
FIBA, on the other hand, allows for a broader range of ball weights, from 20 to 23 ounces, which is equivalent to 567 to 650 grams. This wider range accommodates different playing styles and preferences.
The weight of a basketball is an important consideration for players, as some believe that using a ball that is too light or too heavy can negatively impact their performance. The weight of the ball can affect factors such as shooting, dribbling, and handling skills.
Historically, the weight of basketballs has evolved. The first basketball, marketed in 1894, weighed less than 20 ounces, which is approximately 567 grams. Over time, the weight of the ball has slightly increased, with the current official NBA weight being 22 ounces (623 grams), as previously mentioned. This gradual increase in weight may be attributed to advancements in materials and manufacturing processes, as well as a better understanding of the optimal weight for performance and durability.
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Weight of early basketballs
The first basketball game was played with a soccer ball in December 1891. The first purpose-built basketballs were made from panels of leather stitched together with a rubber bladder inside. A cloth lining was added to the leather for support and uniformity. These early basketballs weighed more than the basketballs used today. A molded version of the early basketball was invented in 1942.
For many years, leather was the material of choice for basketball coverings. However, in the late 1990s, synthetic composite materials were introduced and rapidly gained acceptance in most leagues, although the NBA's game balls still use real leather. From 1967 through 1976, the American Basketball Association (ABA) used a distinctive red, white, and blue basketball.
Today, basketballs usually range in size from very small promotional items that are only a few inches (some centimeters) in diameter to extra-large balls nearly 2 feet (60 cm) in diameter used in training exercises. Different sizes are used for different age groups. Youth basketballs are lighter to allow players to develop skills and use a ball that is proportional to their size. The weight of a basketball increases with its size, with size 7 basketballs weighing more than twice as much as size 3 basketballs.
The standard weight of a basketball in the NBA is between 21 and 22 ounces (approximately 1.3-1.4 pounds or 588-623 grams). FIBA allows for a wider range of ball weights, from 20 to 23 ounces (567-650 grams). The WNBA uses a slightly smaller basketball that weighs 20 ounces.
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Frequently asked questions
An NBA basketball weighs between 21 and 22 ounces.
This is equivalent to 588 to 623 grams.
The first basketball, which was a soccer ball, weighed less than 20 ounces, or 567 grams.
The amount of air in the ball or the pressure to which it is inflated makes little difference, with the variation being around half an ounce, or 14 to 15 grams.
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