Paris Métro Line 11 (French: "Ligne 11 du métro de Paris") is one of the sixteen lines of the Paris Métro. It links Châtelet to Mairie des Lilas in the northeastern suburbs. At a length of 6.3 km (3.9 mi) and 13 stations served, it is currently the shortest of the 14 main Métro lines (excluding Line 3bis and Line 7bis) but is being extended by 6 stations. With 47.1 million riders in 2017, it is the thirteenth busiest line of the network.