An official National Basketball Association or National Collegiate Athletic Association basketball court measures 94 feet by 50 feet and has an area of 4,700 square feet. The NBA and the NCAA use the largest officially sanctioned courts.
The International Basketball Federation and all United States high schools and elementary schools use smaller courts than those used by the NBA and the NCAA. International Basketball Federation courts measure 91.86 feet by 49.21 feet, for a total area of approximately 4,520 square feet. High school basketball courts are 84 feet by 50 feet, with an area of 4,200 square feet, while elementary school courts have an area of only 3,108 square feet, measuring 74 feet by 42 feet.