Dimensions of a Basketball Court
There’s no denying that basketball is one of the 
most popular sports in the world. And unlike football, which is basically soccer to every other country and something entirely different in America, everyone around the globe plays the same game of basketball. But then again, maybe not quite. There are 2 major basketball leagues in operation (one for the United States, the other for the rest of the world) that play by somewhat different rules, particularly in how they perceive the dimensions of a basketball court.
FIBA or Federation Internationale de Basketball (International Basketball Federation) oversees the game of basketball as played in a number of countries outside of the United States. As such, certain rulings of the game, including basketball court specifications, differ significantly from those enforced by the NBA (National Basketball Association) in the US.
For a FIBA-sanctioned basketball game, the standard dimensions of a basketball court are a length of 28 meters (91.85 feet) and a width of 15 m (49.21 ft). . The key area’s free-throw line should be positioned 3.6 m (11.81 ft) from the backboard, and the end line is placed 6 m (19.69 ft) again from the backboard. The 3-point line should be drawn 6.25 m (20.5 ft) from the backboard, the free-throw line situated 4.6 m (15.09 ft) once more from the backboard, and the center circle should be 3.6 m in diameter. There are, however, a few features that the FIBA court has in common with the NBA court. To be precise, the rim of the basket should have an elevation of 3.05 m (10 ft) over the playing area, and the restraining circle should be 1.22 m (4 ft) in diameter
Next we go to the NBA, which is of course the governing body for basketball in the US, and is among the most-watched basketball leagues in the entire world. Compared to the standards set by the FIBA, the NBA boasts of a much bigger court-size and hoop height.
The average dimensions of an NBA basketball court are 28.65 m (94 ft) in length and 15.24 m (50 ft) in width. Similar to the FIBA court, as mentioned, the basket rim is positioned 3.05 m (10 ft) high from the playing area, and the restraining circle has a diameter of 1.22 m (4 ft). The difference with FIBA starts with the court’s key area which, according to NBA regulations, should have a width of 4.88 m (16 ft). The court’s 3-point line should be 7.24 m (23.75 ft) away from the backboard, while the free-throw line should have a 15 ft distance from the backboard.
