Basketball Court Dimensions
3-Point-Line – the 3-point arc in the WNBA, college and high school is 19 feet, 9 inches from baseline to baseline. The 3-point line in the NBA is 22 feet to the center of the rim when it runs straight out from the baseline. When it begins to arc, the line widens to 23 feet, 9 inches, shortening back to 22 feet as it straightens out and runs through to the opposite baseline.
Court Length and Width – in junior high school the length of the court is 74 feet and the width is 42 feet. In high school and college the length of the court is 84 feet and the width is 50 feet. In the NBA/WNBA the length of the court is 94 feet and the width is 50 feet.
The distance from the ground to the rim is 10 feet.
The backboard is 72 inches wide by 42 inches high. The inner square is marked above the rim in a rectangle of 24 inches wide and 18 inches high.
The diameter of the rim is 18 inches enough to fit two NBA size basketballs.
The free-throw line is 13 feet and 9 inches away from the center of the rim