Basketball courts come in different sizes based on the level of basketball being played. A professional NBA court is 94’ x 50’ | 28.65 x 15.24 m. Courts are comprised of several foundational components: the baskets, the three-point arcs, free-throw (foul) lines, and the half court line.
Basketball court dimensions are as follows: #1 NBA/NCAA - regulation basketball court dimension is 94' long by 50' wide. #2 High School basketball court dimension measure 84' long by 50' wide. #3 Jr. High School basketball court dimension measure 74' long and 42' wide.
The main difference between a college basketball court and a high school basketball court is the length. While college courts are 94' long, high school courts are 84'. Junior high courts are even smaller at 74' and play with a width of 42'. The other primary difference is high school courts generally do not have a restricted arc under the basket. The three-point line is 19' 9" on both high school and junior high basketball courts.
The NBA (National Basketball Association) official court size is 94 feet long by 50 feet wide, where the international court is a bit smaller. The FIBA (International Basketball Federation) rules state the court size should be 91.9 feet long by 49.2 feet wide for international basketball games.
The regulation distance from the ground to the top of the rim is 10 feet for all levels of play. Regulation backboards are 6 feet wide (72 inches) by 42 inches tall. All basketball rims (hoops) are 18 inches in diameter. The inner square on the backboard is 24 inches wide by 18 inches tall.
How big is a basketball court? Typical backyard basketball court dimensions are 60 feet by 90 feet (for reference, a regulation NBA court is 50 feet by 94 feet). If your backyard space is limited — but you don’t want to settle for the ol’ “single hoop in the driveway” setup — you could also choose a half-court basketball court layout, which is 30 feet by 50 feet.
NBA Professional Half Court Dimension is 50’ baseline by 47’ sidelines. College Women’s and Men’s basketball half-court dimensions are the same as the NBA. High School basketball half-court dimension is 50’ baseline by 42’ sideline. Basketball Key Dimensions (Free Throw Lane)
Basketball Court Lines Professional NBA and College Basketball court is 94 feet (29 m) by 50 feet (15 m). International Basketball the court 28 meters (92 ft) by 15 meters (49 ft). High school, and Junior High court 84 feet (26 m) by 50 feet (15 m).