Amanda Knapp
Basketball is a sport with universal appeal, with leagues and competitions for all ages and genders. The size of a basketball varies depending on the league and the age and gender of the players. The standard basketball used in men's professional leagues, such as the NBA, is a size 7 basketball, weighing 22 ounces and measuring 29.5 inches in circumference. In contrast, a women's basketball is typically a size 6, weighing 20 ounces with a 28.5-inch circumference. This size is used in women's professional leagues like the WNBA, as well as in women's college and high school basketball. The size difference is attributed to the average physical differences between male and female players, with women typically having smaller hands and lighter builds.
| Characteristics | Values |
|---|---|
| Circumference | 28.5 inches (size 6) or 29 inches (FIBA standard) |
| Weight | 20 ounces |
| Pressure | 7.5-8.5 PSI |
| Leagues | WNBA, NCAA, High School, College |
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What You'll Learn
Women's basketball size standards
The standard size of a women's basketball is 28.5 inches in circumference, or 72.39 cm if we're using SI units. This is also referred to as a size 6 basketball, which weighs 20 ounces or 566.99 grams. This ball is used in the Women's National Basketball Association (WNBA), as well as in women's college and high school basketball leagues.
The size difference between men's and women's basketballs is due to the fact that WNBA players are generally smaller and lighter, with smaller hand spans than NBA players. The smaller ball is ideal for play, as it allows for more accurate control of the ball when shooting. It is also argued that the smaller and lighter basketball was introduced to make women's basketball more interesting to spectators because female players tend to shoot from longer distances more often than men.
In international play governed by the FIBA (International Basketball Federation), the basketball size used for women's matches is slightly bigger, with a 29-inch circumference. This is the same size used in college basketball (NCAA) for both men and women.
It's important to note that the inflation and air pressure of a basketball can also impact gameplay. The ball must be inflated so that its weight is a maximum of 20 ounces for women, and the pressure should be consistent to avoid affecting performance.
Using a ball that is too small or too big for your hand size can cause issues with skill development and adjustment to a regulation-size ball. Therefore, it is essential to use the appropriate ball size for your age and gender to ensure optimal performance and comfort during play.
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The WNBA and women's basketball leagues
The Women's National Basketball Association (WNBA) is a women's professional basketball league in the United States. The WNBA was founded on April 24, 1996, and is the counterpart of the NBA, which is the only league to receive its full backing. The WNBA began with eight teams, including the Charlotte Sting, Houston Comets, and New York Liberty in the Eastern Conference, and the Los Angeles Sparks and Phoenix Mercury in the Western Conference. The league now comprises 13 teams, with an expansion to 15 teams scheduled for 2026.
The WNBA uses a slightly smaller basketball than the NBA, measuring 28.5 inches in circumference and weighing 20 ounces. This is due to WNBA players generally being smaller and lighter, with smaller hand spans, than NBA players. This size 6 basketball is the official ball size for most women's professional basketball associations, including the WNBA, as well as women's college and high school basketball leagues.
The WNBA has faced competition from other women's basketball leagues, such as the American Basketball League (ABL), which ceased operations during the 1998-99 season. In 1999, the WNBA announced it would expand to 16 teams, however, this was met with challenges as two teams folded due to issues with ownership. Despite these setbacks, the WNBA has continued to grow and thrive, with a focus on player welfare, as evidenced by the collective bargaining agreement signed between players and the league in 1999, a landmark moment in women's professional sports.
The WNBA has gained popularity and media attention, with games being broadcast on platforms such as League Pass, featuring teams like the Washington Mystics and the Minnesota Lynx. The league has also fostered the development of talented players, such as Sami Whitcomb and Laeticia Amihere, who have become notable figures in the world of women's basketball.
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The impact of ball size on women's performance
The size of a basketball impacts several aspects of the game, including the physics of throwing, passing, and dribbling. The weight of the ball also affects ball handling skills, such as travelling, double dribbling, passing, and steals. The size of the ball also determines the trajectory of shots and passes.
Women's basketball leagues typically use a size 6 basketball, which has a 28.5-inch circumference and weighs 20 ounces. This is slightly smaller than the size 7 basketball used in men's leagues, which has a 29.5-inch circumference and weighs 22 ounces. The rationale for the smaller ball in women's basketball is that women generally have smaller hands and are smaller and lighter in stature than men.
The introduction of a smaller and lighter basketball for women was intended to improve the efficiency and accuracy of technical elements, particularly shots at the basket. Studies have shown that the use of a size 6 basketball by women has led to an increase in successful free throws. However, the impact of ball size on scoring accuracy is less clear, with one study finding no improvement in scoring when comparing games played with larger and smaller balls.
Some female basketball players have expressed frustration at having to use a different size ball when playing in mixed games, as it can be difficult to adjust to the larger ball. The use of a smaller ball for women has also been criticised as a barrier to entry for women in a male-dominated sport, perpetuating systemic sexism and impacting the popularity of women's basketball.
Overall, the impact of ball size on women's performance in basketball is complex and multifaceted. While a smaller ball may improve accuracy and ball handling skills, it may also create disadvantages when playing with a larger ball, and it does not necessarily lead to improved scoring.
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Historical use of smaller balls in women's basketball
Women's basketballs are 28.5 inches in circumference, which is 1 inch smaller than the 29.5-inch balls used in men's basketball. This size 6 basketball is the official size for most women's professional basketball associations, including the WNBA, as well as women's college and high school basketball leagues.
The use of a smaller ball in women's basketball dates back to the 1930s when Dittebrant suggested that a smaller and lighter basketball would be more suitable for female players due to their smaller palms and hands. However, it wasn't until the 1970s and 1980s that the smaller ball was widely adopted. In 1978, a size 6 basketball was introduced in the United States' Women's Professional Basketball League (WBL), and the players' positive response led to its suggested use in other US competitions. By the 1984/85 season, over 70% of colleges were using the smaller ball.
The size 6 basketball was also introduced internationally by the International Basketball Federation (FIBA) in the 2004/2005 season to improve the efficiency and accuracy of technical elements, particularly shots at the basket. The smaller ball is said to be easier to score with and allows for a higher share of field goals. Additionally, it is argued that the smaller ball makes women's basketball more interesting to spectators as female players tend to shoot from longer distances and have more accurate control of the ball.
The use of a smaller ball in women's basketball has been a topic of debate, with some arguing that it creates a barrier to entry for women who want to play with a standard-size ball. However, others defend the use of a smaller ball, citing the average height and hand span of female players, which are typically smaller than their male counterparts.
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International women's basketball rules
The rules for women's basketball are almost identical to the rules for men's basketball. Women's basketball has been an official Olympic sport since 1976, with the sport first played in 1892 at Smith College in Massachusetts. The ball used in women's basketball is slightly smaller than the one used in men's basketball, measuring 28.5 inches in circumference and weighing 20 ounces. This is due to the fact that WNBA players are typically smaller and lighter with smaller hand spans than NBA players.
Women's basketball leagues use a slightly smaller ball, measuring 28.5 inches in circumference, which is referred to as a size 6 basketball. This is the official ball size for most women's professional basketball associations, including the WNBA, as well as women's college and high school basketball leagues. The ball must be inflated to a pressure of 7.5-8.5 PSI, and it should weigh a maximum of 20 ounces.
For international play governed by the FIBA, the basketball used for women's matches is slightly bigger, with a circumference of 29 inches. In these matches, the ball must be inflated to an air pressure such that when dropped onto the playing floor from a height of approximately 1,800 mm, it will rebound to a height of between 1,200 mm and 1,400 mm.
In terms of gameplay, women's basketball is played with two teams, most commonly with five players each, competing on a rectangular court. The primary objective is to shoot a basketball through the defender's hoop. Most high school games are played with four 8-minute quarters, while NCAA, WNBA, and FIBA games are played with four 10-minute quarters. Additionally, both men's and women's NCAA college basketball use a 30-second shot clock.
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Frequently asked questions
A woman's basketball is typically 28.5 inches in circumference and weighs 20 ounces.
The WNBA uses a size 6 basketball, which is 28.5 inches in circumference and weighs 20 ounces.
Women's basketball leagues use a smaller ball to accommodate the fact that female players typically have smaller hands than male players. The smaller ball also allows for more accurate control of the ball when shooting.
No, the size of the ball used in women's basketball can vary depending on the league and the age group of the players. For example, the FIBA women's international basketball uses a ball with a 29-inch circumference, while the WNBA and women's college and high school basketball leagues use a 28.5-inch ball.
A women's basketball game in the WNBA is played in four 10-minute quarters, while in college basketball, it is typically played in four 12-minute quarters.
