Okay Napoleon, this is from a site called Wikkipedia....
At the professional level, most male players are above 1.90 meters (6 ft 3 in) and most women above 1.70 meters (5 ft 7 in). Guards, for whom physical coordination and ball-handling skills are crucial, tend to be the smallest players. Almost all forwards in the men's pro leagues are 2 meters (6 ft 6 in) or taller. Most centers are over 2.1 meters (6 ft 10 in) tall. According to a survey given to all NBA teams, the average height of all NBA players is just under 6 ft 7 in (2.01 m), with the average weight being close to 222 lb (101 kg). The tallest players ever in the NBA were Manute Bol and Gheorghe Mureï¿½?an, who were both 2.31 m (7 ft 7 in) tall. The tallest current NBA player is Yao Ming, who stands at 2.29 m (7 ft 6 in).
The shortest player ever to play in the NBA is Muggsy Bogues at 1.60 meters (5 ft 3 in). Other short players have thrived at the pro level. Anthony "Spud" Webb was just 5 feet 7 inches (1.70 m) tall, but had a 42-inch (1.07 m) vertical leap, giving him significant height when jumping. The shortest player in the NBA as of the 06-07 season is Earl Boykins at 5 feet 5 inches (1.65 m). While shorter players are often not very good at defending against shooting, their ability to navigate quickly through crowded areas of the court and steal the ball by reaching low are strengths.