How big is a regulation size basketball

Basketball Sizes: A Quick Guide for All Levels of Play

NBA and College Basketball Sizes

Basketball sizes vary by age, gender, and level of play. The official size of the basketball used by the NBA is 29.5 inches in circumference. That’s 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, specifically FIBA, the basketball used is what’s called a Molten GL7 for men and Molten GL6 for women. These basketballs typically feature two different colors and are slightly bigger, with a 30.7-inch circumference for the men’s ball and a 29-inch circumference for the women’s.

Youth Basketball Sizes

Boys in middle school (or ages 12-14), use a 28.5-inch ball, as do all women and girls ages 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 sized ball used in youth basketball leagues.

Boys and girls between the ages of 4 and 8 use a basketball between sizes of 22 inches and 24.5 inches in circumference, depending on the individual’s hand size, which can be determined by a coach or parent by measuring from the bottom of the individual’s palm to the tip of his or her middle finger.

An NBA basketball must be inflated to a pressure of 7.5 to 8.5 PSI. The WNBA uses the same pressure regulations.

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 having a maximum weight of 20 ounces. In FIBA play, the official rules state that the ball “be inflated to an air pressure such that, when it is dropped onto the playing floor from a height of approximately 1,800 mm measured from the bottom of the ball, it will rebound to a height of between 1,200 mm and 1,400 mm, measured to the top of the ball. ”

A standard NBA basketball has a diameter between 9.43 and 9.51 inches. In the WNBA, the basketball has a diameter of between 9.07 and 9.23 inches. Basketballs used in the NCAA are between 9.39 and 9.55 inches for men and 9.07 and 9.23 inches for women.

Basketballs used for indoor and outdoor play differ in their material. Indoor basketballs are made of full-grain leather; basketballs meant for outdoor use are made of rubber.

Though basketballs made for indoor use may initially feel smooth to the touch, after a few uses, they become somewhat broken in and easier to grip, much like a baseball mitt. Leather basketballs should not be used outside because the concrete surface of an outdoor basketball court causes the leather to roughen and wear, which eventually ruins the ball’s grip.

Some indoor basketballs are made of composite or synthetic leather. The upside is that they don’t need to be broken in like a regular leather ball. But generally speaking, the quality is not as good.

Outdoor, or “street” balls, employ a rubber surface because it can absorb the rougher surface of a concrete court without sacrificing the ball’s grip. A rubber ball is also a good choice for beginners because it is the easiest ball to control.

The three best-selling basketball brands are Spalding, Nike, and Wilson. As the official ball of the NBA, Spalding is perhaps the most recognized basketball manufacturer. Nike and Wilson are also popular thanks to the variety of textures, technologies, and color schemes they offer.

A typical official-size men’s basketball retails on average between $30 and $60. Both the NBA and WNBA use Spalding basketballs, while the NCAA and most youth leagues use Wilson. As mentioned previously, FIBA and international leagues use Molten as their basketball provider.

READ MORE:

• Basketball Court Dimensions and Hoop Height: A Quick Guide
• Helpful Stretches for Basketball Players
• AAU Basketball, Explained 
• How to Build a Basketball Body

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NBA and College Basketball Sizes

Basketball sizes vary by age, gender, and level of play. The official size of the basketball used by the NBA is 29.5 inches in circumference. That’s 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, specifically FIBA, the basketball used is what’s called a Molten GL7 for men and Molten GL6 for women. These basketballs typically feature two different colors and are slightly bigger, with a 30.7-inch circumference for the men’s ball and a 29-inch circumference for the women’s.

Youth Basketball Sizes

Boys in middle school (or ages 12-14), use a 28.5-inch ball, as do all women and girls ages 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 sized ball used in youth basketball leagues.

Boys and girls between the ages of 4 and 8 use a basketball between sizes of 22 inches and 24.5 inches in circumference, depending on the individual’s hand size, which can be determined by a coach or parent by measuring from the bottom of the individual’s palm to the tip of his or her middle finger.

An NBA basketball must be inflated to a pressure of 7.5 to 8. 5 PSI. The WNBA uses the same pressure regulations.

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 having a maximum weight of 20 ounces. In FIBA play, the official rules state that the ball “be inflated to an air pressure such that, when it is dropped onto the playing floor from a height of approximately 1,800 mm measured from the bottom of the ball, it will rebound to a height of between 1,200 mm and 1,400 mm, measured to the top of the ball.”

A standard NBA basketball has a diameter between 9.43 and 9.51 inches. In the WNBA, the basketball has a diameter of between 9.07 and 9.23 inches. Basketballs used in the NCAA are between 9.39 and 9.55 inches for men and 9.07 and 9.23 inches for women.

Basketballs used for indoor and outdoor play differ in their material. Indoor basketballs are made of full-grain leather; basketballs meant for outdoor use are made of rubber.

Though basketballs made for indoor use may initially feel smooth to the touch, after a few uses, they become somewhat broken in and easier to grip, much like a baseball mitt. Leather basketballs should not be used outside because the concrete surface of an outdoor basketball court causes the leather to roughen and wear, which eventually ruins the ball’s grip.

Some indoor basketballs are made of composite or synthetic leather. The upside is that they don’t need to be broken in like a regular leather ball. But generally speaking, the quality is not as good.

Outdoor, or “street” balls, employ a rubber surface because it can absorb the rougher surface of a concrete court without sacrificing the ball’s grip. A rubber ball is also a good choice for beginners because it is the easiest ball to control.

The three best-selling basketball brands are Spalding, Nike, and Wilson. As the official ball of the NBA, Spalding is perhaps the most recognized basketball manufacturer. Nike and Wilson are also popular thanks to the variety of textures, technologies, and color schemes they offer.

A typical official-size men’s basketball retails on average between $30 and $60. Both the NBA and WNBA use Spalding basketballs, while the NCAA and most youth leagues use Wilson. As mentioned previously, FIBA and international leagues use Molten as their basketball provider.

READ MORE:

• Basketball Court Dimensions and Hoop Height: A Quick Guide
• Helpful Stretches for Basketball Players
• AAU Basketball, Explained 
• How to Build a Basketball Body

Share This Story!

Basketball Size Guide

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To play great basketball, you need the right-sized ball. Having a ball that is too small or too big for your grip can play havoc on your skills and dampen your game. You need to feel in control of the ball and make it move how you want it to, and this is just not possible when you can’t get a good grip. To enhance your game and feel more confident, it’s important to take the time to understand what size ball you require.

There are many available, so to help you understand what size would be best for you, we have compiled a sizing chart for each of our basketballs.

Size 3 is a novelty-sized, or 'mini' basketball that is suitable for all ages. The Size 3 basketball has a circumference of 22" (55.9cm).

Size 5 is the standard basketball size for both boys and girls aged 5 - 12 years old. The Size 5 basketball has a circumference of 27. 5" (69.5cm).

Size 6 is the standard basketball size for females aged 9+ years and males aged 9 to 12 years old. The Size 6 basketball has a circumference of 28.5" (72.5cm).

Size 7 (29.5" or 75cm) is the official size of all adult basketballs, suitable for male basketball players aged 12 years and over.

Find Your Size and Stay True to The Game

From just playing for fun to trying to make it to the main stage, having the right tools can improve your game immensely. Once you have found the right-sized basketball you can focus on performing to the best of your ability, enhancing your techniques and enjoying your favourite game.

If you want to know how to best practice at home with your right-sized ball, check out our tips for different training set ups .

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Basketball size 7,6,5,3 (weight, diameter, pressure)

Home / All sports / Basketball size 7,6,5,3 (weight, diameter, pressure)

03/20/2020 All sports Leave a comment 26,695 Views

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Basketball size varies by league, governing body, and gender and age of students. Basketballs differ from each other in weight, pressure, circumference and material of manufacture. According to the official rules of the game, the game projectile must have a spherical shape, be made in orange and have 8 black inserts and seams.

The official size of a basketball is numbered 7, it has the following characteristics: weight (mass) is - 567-650 grams, circumference - 749-780 cm, atmospheric pressure - 0.56 - 0.63 kg / cm ² . This is the largest ball, and now look at the rest in the table:

Size	Circumference (cm)	Weight (grams)	Pressure (kg/cm 2)	Where applicable
7	749-780	567-650	0.56 - 0.63	Professional Men's Basketball, Boys 14+
6	724-737	510-567	0. 56 - 0.63	Women's professional basketball, girls 12+, boys 12-13
5	690-710	470-500	0.56 - 0.63	Boys and girls 10-11 years old
3	560-580	300-330	0.56 - 0.63	Boys and girls 4-9 years

Pass the Basketball Test

Basketballs are made from natural leather or synthetic leather - the pressure is the same for all sizes. It is worth remembering that a correctly inflated ball of the correct size is important to ensure quality training and skill development for players of different ages.

For games held under the auspices of the International Basketball Federation (FIBA), the ball is inflated to air pressure so that when it falls onto the court from a height of 1.8 meters, it should bounce to a height of 1.2-1.4 meters (measured by the top of the game ball).

Indoor and outdoor basketballs

There are no differences between the versions of the game in terms of size, but there are other nuances regarding manufacturing. Indoor balls are made of genuine leather, and outdoor balls are made of rubber.

Leather basketballs intended for indoor use should not be used outdoors. Concrete or asphalt surfaces cause the leather to become rough and wear out quickly, eventually resulting in poor hand-ball contact. Also, some balls for playing inside are made of composite or synthetic leather, but their quality leaves much to be desired.

For outdoor play, manufacturers make balls with a rubber surface, as it is able to interact better with rough field surfaces. Rubber basketball will be a good choice for beginner players as it is much easier to control and develop skills.

Best Selling Basketball Brands

Basketball is very popular all over the world, which means that ball manufacturers do not have to sit idle, because they need to compete, create a quality product and, accordingly, make a profit. Here are the 3 best selling basketball brands in the world.

1. Spalding (USA)
2. Wilson (USA)
3. Molten (Japan)

Spalding makes balls for the most popular league in the world, the NBA. Wilson is in demand with the NCAA and most of the youth leagues in the United States of America. But Molten is the main supplier of game equipment for FIBA ​​tournaments, European championships and even the Olympic Games.

Note that on average for men, a standard size 7 basketball sells for $30-60.

Basketballs have changed a lot since the beginning of the game in the late 19th century. Today, technology has made it possible to make very high-quality and even smart balls. This was not always the case, because decades have passed and the balls have undergone many changes and improvements, although at the very beginning, James Naismith, the founder and father of basketball, used a soccer ball to play, which his students threw into peach baskets.

A new wave of basketball ball design, sweat throughout the appearance, will stand out flawless technology. This applies to the panels of the game projectile - now there are 8 of them, and the new composite structures have only two. New modern balls are constantly advertised by manufacturers. There are those that can control humidity, have more pimples - dots, and are even able to track the entire process of the game and in live mode and send information (strength of throw, rotation, impact) to Android or iPhone. Such a ball is 94FiFty.

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Basketball court markings: standards and norms

Author of the article

Khvatkov Dmitry

Consultant in the production of rubber coatings

Basketball field marking requirements approved by FIBA ​​standard. The site must be flat with a hard surface, free of bends, cracks and other obstacles. The accepted dimensions of the field are 28 m long and 16 m wide. By NBA standards, the field is slightly larger: 28. 7 m (94' ft) long and 15.3 m (50' ft) wide.

Non-international competition courts may differ from accepted standards (for public use, in schools or universities, etc.) and usually vary from 20 to 28 m in length and from 12 to 16 m in width.

Basketball court marking standards

Basketball court markings are conditionally divided into 5 components:

• Boundary lines. They are located along the perimeter of the site and set its size. The lines that run along the field are called side lines, and those that are behind the baskets are called front lines.
• Central line. Divides the court in half parallel to the front lines.
• Central zone. It is a circle and is placed in the middle of the center line, and, accordingly, in the center of the entire field.
• Three-point line. It is a semi-ellipse and is located around the shields on both sides of the field. It limits the close range.
• Free throw line. It is located in front of the boards parallel to the front line and is limited on the sides by paint lines.

The standard line width is 5 cm. All outlines and lines must be of the same color (usually white) and clearly visible from anywhere on the court.

Common lines

Common lines are used to limit the playing area of ​​the court. The side lines (along the field) according to FIBA ​​standards should be 28 m long, and the front lines - 16 m. For public areas, deviations from the accepted standards are allowed. Typically, basketball courts in schools or gyms are made from 20 m long and 12 m wide.

Central lines

The center line is parallel to the front and divides the field exactly in half. According to the standards - it should extend beyond the side lines by 15 cm on both sides.

In the middle of the center line there is a circle with a diameter of 3.6 m, which limits the central zone of the field. In this zone, the ball is played at the beginning of the game.

Three-point line

Three-point lines are located around the backboards on both sides of the field and consist of two straight lines with a length of 2. 99 m and a semicircle. Straight lines run perpendicular to the front at a distance of 0.9 m from the side lines. Despite the fact that visually the distance from the ring to the side of the three-point line seems to be less than to its central part, the distance from the backboard to any point is 6.75 m.

Penalty lines

Penalty lines limit the nearest area at the backboard. They consist of a trapezoid and a free throw zone.

Despite the name, the "trapezium" is a rectangle (until 2009year it really was a trapezoid), which is located under the shield. Its dimensions are 5.8 meters long and 4.9 meters wide. The shield is located at a distance of 1.575 m from the end line in the middle of the court. In front of the backboard, at a distance of 1.25 m, there is a semicircle that limits the area for picking up the ball.

At a distance of 4.225 meters from the backboard, the trapeze zone ends and the free throw zone begins. It is a semicircle with a diameter of 3. 6 m (like the central circle).

Paint zone lines

These lines are serifs on both sides of the trapezoid (parallel to the sidelines). They limit the areas for players who are fighting for the ball during a free throw.

Zones on the basketball field

The basketball court is divided into zones using markings. Each zone has its own specific rules.

Center circle

The center circle is used as a separate kick-off area at the start of the game. One representative from each team stand in a circle from their side and fight for the ball in a jump, after it is dropped by the referee. All players are exclusively on their side of the field, except for one who rebounds on the opponent's side.

Neutral zone

The peculiarity of this zone is that once the player of the attacking team with the ball crosses the center line and is on the side of the opponent, he cannot pass the ball to the player of his team who is on the other side of the field (i. e. behind center line on your side).

Three-point zone

The three-point line limits the near zone of the shot. Hitting the basket from outside the basket brings the team three points. If the throw was made inside the zone, then it brings two points.

Three-second zone

This is the zone in close proximity to the ring. It is called three-second, since the player of the attacking team cannot be in it for more than three seconds. Most balls are thrown in this zone, so when attacking, it provides maximum protection.

Free throw area

In controversial situations, a free throw is provided from this area. The player of the attacking team must score the ball without stepping over the line of the trapezoid. At the same time, the players of both teams are not in the three-second zone. They take up positions along the paint lines on the sides of the trapezoid and may not step outside the lines until the free throw shooter has shot the ball.

How to mark a basketball field?

Basketball field markings, whether it is an international competition court or an open-air amateur field, are best applied using special equipment.

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