Helena Frye
Basketball is a team sport played on a rectangular court by two teams of five players each. The dimensions of a basketball court vary depending on the level and type of basketball being played. For instance, the court dimensions for a standard-sized full court used in NBA professional basketball and college play is 94 feet long by 50 feet wide. In contrast, an international basketball court measures 92 feet long by 49 feet wide, and a high school or junior high court is typically 84 feet long and 50 feet wide. The total playing area for a court is 4520.43 ft², and this increases to 7290.5 ft² if run-offs and sidelines are included.
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What You'll Learn
Court dimensions vary by league
Basketball courts come in different sizes, depending on the level and type of basketball being played. While the inner court markings for the "Foul Line" and the backboard dimensions remain the same, the overall layout and dimensions vary by league.
The standard size for the National Basketball Association (NBA) is 94 feet long by 50 feet wide, or 4,700 square feet. This is the largest court size of any basketball league, domestic or international. The three-point line is 23 feet 9 inches from the hoop. The free throw lane, or "the key", is 16 feet wide. The rim of the basket hangs 10 feet off the ground.
The Olympic standard, overseen by the International Basketball Federation (FIBA), is slightly smaller. The FIBA court is 91 feet 10 inches long and 49 feet 3 inches wide, or 4,400 square feet. The three-point line is 22 feet 1.5 inches from the hoop. The free throw lane is 16 feet wide.
The Women's National Basketball Association (WNBA) has adopted the FIBA three-point line. The NCAA, or college basketball court, is the same size as the NBA court, but the free throw lane is 12 feet wide.
High school basketball courts are 84 feet long and 50 feet wide, or 4,200 square feet. Junior high and middle school courts are normally 74 feet long and 42 feet wide, or 3,108 square feet. For elementary school-age athletes, the court size is further reduced to a half-court setup of 37 feet long and 42 feet wide.
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The three-point line
In the NBA, the three-point line ranges from 22 feet (6.7 metres) in the corners to 23.75 feet (7.24 metres) behind the top of the key. The WNBA and FIBA share a three-point line distance of 22.15 feet (6.75 metres) from the centre of the hoop. In the NCAA, the three-point line is 20 feet, 9 inches (6.25 metres) from the centre of the basket. In high school basketball, the three-point line is 19.75 feet (approximately 6 metres) from the basket.
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The free-throw line
The free-throw lane is also referred to as the key, which has a rectangular shape measuring either 19 feet by 16 feet or 19 feet by 12 feet. The wider 16-foot key is used in the NBA and FIBA competitions, while the 12-foot key is used in college, high school, and junior high basketball. The key is an essential area of the court, as it is where players line up during a free-throw attempt.
The three-point line, another important marked feature of the court, is located outside the key. This line forms an imperfect arc stretching from one side of the baseline to the other. The arc is not a perfect circle to avoid going out of bounds on the sides of the court. Instead, the three-point line runs in a straight line from the baseline for 16 feet and 9 inches before it begins to curve. The distance of the three-point line from the basket varies depending on the level of play and the organisation. For instance, the three-point line is 23 feet and 9 inches from the centre of the basket in the NBA, while it is 19 feet and 9 inches in college basketball.
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The key
The size and shape of the key vary depending on the level of basketball and the organisation governing the rules. In the National Basketball Association (NBA), the key is 16 feet wide and 19 feet from the baseline to the foul line. The FIBA (International Basketball Federation) key, on the other hand, is a rectangle that is 4.9 metres wide and 5.8 metres long. This change was implemented in 2010, before which the FIBA key was a trapezoid. The NCAA (National Collegiate Athletic Association) key is 12 feet wide.
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The centre circle
The half-court line, which bisects the centre circle, is crucial for defining the playing areas for each team. It is positioned 14 metres from each endline, ensuring an equal distribution of space on either side of the court. This line also serves as a reference point for initiating play, with the centre circle being the focal point for the opening tip-off.
The dimensions of the centre circle are standardised across different basketball leagues, including the NBA, WNBA, FIBA, and NCAA. While the court dimensions may vary slightly between these leagues, the centre circle remains consistent, ensuring uniformity in the rules and gameplay across different levels of competition.
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Frequently asked questions
The dimensions of a professional NBA basketball court are 94 feet by 50 feet, or 28.65 by 15.24 meters.
The dimensions of an international basketball court are 92 feet by 49 feet, or 28 by 15 meters.
The height of an indoor basketball court should be a minimum of 22.96 feet or 7 meters.
The diameter of the center circle on a basketball court is 3.6 meters or 12 feet.
The three-point line in high school basketball is 19.75 feet from the basket.
