All NBA and NCAA basketball courts are required to measure 94 feet long and 50 feet wide. High school courts in the United States are usually 84 by 50 feet. Internationally, the most common court size is 28 meters by 15 meters, or about 92 by 49 in feet.
The minimum allowable high school court size is 74 by 42 feet, though some are as large as 94 by 50 feet. Larger courts allow for a more open style of play. The free throw line is 15 feet from the basket on all U.S. courts, but is slightly farther away at 4.6 meters, or 15.09 feet, in international play. The three-point line varies in distance from 19 feet, 9 inches in high school to as much as 23 feet, 9 inches in the NBA.