![]() The line was added to increase excitement, but the league folded in just one and a half seasons, so the idea never had a chance. The first instance of the three-point line appeared in the American Basketball League in 1961, a full 70 years after Dr. The three-point line is arguably the most recognizable aspect of a basketball court’s dimensions and part of the reason why is attributed to the history surrounding this semicircle. ![]() ![]() The FIBA three-point line, which has also been adopted by the WNBA, is over a foot and a half closer than the NBA line. This measurement works out to about 22 feet, two inches. At the top of the arc, the three-point line is 6.75 meters from the center of the basket or 22.15 feet. The basket is still 10 feet off the ground, which means the biggest difference is the three-point line. The restricted area under the basket is 1.25 meters or just a shade more than four feet in radius. The basket is 1.2 meters, or almost four feet, in from the baseline, which puts the foul line at 4.6 meters - 15 feet - away. These numbers convert to within a few inches of 19 and 16 feet. The key is almost the same size at 5.8 meters long and 4.8 meters wide. This difference translates to a radius of about five feet, seven inches. The tip-off circle is a bit smaller as well, at 3.5 meters in diameter. The 15-meter width converts to just over 49 feet. courts because of the difference between our Imperial measurements - feet and inches - and the more standard metric system.įIBA courts are an even 28 meters long, which converts to almost 92 feet. ![]() The measurements for FIBA basketball courts differ from U.S. The difference in three-point line distances is the biggest adjustment for shooters to make as they begin their professional careers, and also why it’s so difficult to project how well a player will shoot in the pros.įIBA governs international basketball courts. Because of the smaller diameter, it is a continuous arc from one side of the baseline to the other, with no straight lines necessary to create space on the sidelines. The NCAA three-point line is only 20 feet, nine inches from the center of the basket. However, the most recognizable difference between the NBA’s court dimensions and the NCAA’s is the distance of the three-point line. The restricted area under the basket is also one foot smaller, at three feet in diameter rather than the NBA’s four. The first box on the side of the key is only six feet from the baseline, not seven. For starters, the key is only 12 feet wide, rather than 16. That said, there are a few significant differences in the dimensions of the NCAA court. National Collegiate Athletic Association or NCAA basketball courts have similar dimensions to the NBA and WNBA, which include the: The line also acts as the starting place for inbounds passes after timeouts and fouls. Starting at the baseline and running 28 feet toward the center of the court, a line bounds the team bench area. The straight lines are an even 22 feet from the center of the basket, and on the arc, the distance is 23 feet and nine inches. Instead, the three-point line runs in a straight line from the baseline out 16 feet, nine inches, at which point the line begins to curve. The arc isn’t a perfect circle because it would run out of bounds on the sides of the court. Outside the key, the three-point line forms an imperfect arc stretching one side of the baseline to the other. Along both sides of the key, lines are drawn three feet apart to create the standing positions for other players during a free throw attempt, starting with a box that is seven feet from the baseline and one foot wide. If a defender is inside this semicircle, he cannot draw a charging foul. Inside the key, a four-foot arc is aligned with the center of the basket to designate the restricted arc. The backboard itself measures six feet wide and 42 inches high. It’s a misconception that the foul line is 15 feet from the center of the basket. Subtracting the four feet overhang from the 19-foot length of the key, we get the familiar 15-foot distance from the foul line to the front of the backboard. The backboard protrudes four feet out from the baseline, and the rim of the basket hangs 10 feet off the ground. Some courts have the other side of the half-circle drawn in a dotted line inside the key to complete the circle and create a clear boundary for any jump balls. A semicircle with a six-foot radius extends from the foul line. The key is 16 feet wide and 19 feet from the baseline to the foul line.
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