Namchi is situated at an altitude of 1,675 m (5500 feet) above sea level. It is situated at a distance of 78 kilometres (48 mi) from the state capital Gangtok and 100 kilometres (62 mi) from the town of Siliguri, the nearest railhead and airport. Namchi lies off the road between Melli and Jorethang. Namchi is well connected to other towns in Sikkim and West Bengal. Jeeps and buses regularly ply between Namchi to Gangtok, Pelling, Jorethang, Kalimpong and Siliguri.