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What are the Key Dimensions of a Basketball Court?

Posted by Alison Olesen on 19 Mar, 20


  • What is the diameter of a basketball hoop? 18 inches
  • How high is the basketball hoop from the floor? 10 feet
  • How far it from the front of the rim to the Free Throw Line? 13 feet
  • How wide is the basketball Key Lane? The lane is 12 feet wide.
  • How far is it from the backboard to the Free Throw Line? 15 feet
  • What is the distance from the front of the backboard to the End Line? 4 feet on regulation courts ( though many courts do that have that much space.)
  • What is the size of the half-circle at the top of the key? The half-circle has a 6 ft radius.
  • What are the line widths for the key and 3 point line? 2 inches.
  • What is the size of the Basketball Key or lane? It is 12 feet wide and 15 feet from the front of the backboard to the Free throw line. 19 feet from the end line to the Free Throw Line.
  • What is are the dimensions of the overall Court? for NCAA and Pros, it is 94 feet long and 50 feet wide. The High School court is 84 feet long and 50 feet wide.
  • What is the size of the Center Circle (Tip-off circle)? The circle has a 6 feet radius split by the division or Half Court line.
  • What are the differences between the High School, NCAA, and NBA courts?
  • High School: 84' length | 3 pt line from basket 19' x 9"
  • NCAA: 90' length | 3 pt line from basket 20' x 9" (women) 22' x 22'
  • NBA: 90' length | 3 pt line from basket 23' x 9"
NCAA Men's ( 22 ft 1.75 inches to 22 feet in the corners) and NBA (23 ft 9 inches to 22 feet in the corners)