Less than 12 minutes per game for a career = 2.01 seasons.
More than 12 minutes per game for a career but less than 20 = 5.01 seasons.
More than 20 minutes per game for a career but less than 25 = 7.59 seasons.
More than 25 minutes per game for a career but less than 30 = 9.21 seasons.
More than 30 minutes per game for a career = 10.88 seasons.
NBA All-Star at least once = 11.36 seasons.
guys like Jordan , koby, Tim Duncan, and Kevin Garnett all made it thru 13years, mj even retired and came back missing two years but they are the exception. 12 years is the avg career of a nba player.
82 games in 1 NBA season
David Robinson
30 years
That was Hall of Famer Moses Malone who began his ABA career in 1974 and ended his NBA career in 1995.
it depends on the player but normally 20 yrs.
The average career span for a Major League Baseball player is 5.6 years. For a player in the National Football League it is only 3.5 years and for an NBA player, the average career is just short of 5 years.
Ray Allen
Robert PArish played 21 seasons, longest in the NBA.
Magic Johnson's career points per game average in the NBA was 19.5.
5 years is average in the NBA.
Scott Williams, 3 times NBA Champion, a retired professional basketball player in the NBA, had 3506 rebounds in his whole career. He ended his career in 2005.