Board Thread:Warhammer 40k General Discussion/@comment-6134883-20130417202949/@comment-7186329-20130423163950

A single Order of the Adepta sororitas has about 1000 sisters, organized in a similar way to Space Marine chapters, those are the military branches, therefore at the least 15 000 Sisters of Battle. Considering the Adepta have several Orders, and the Sisters of Battle are just a single branch of the organization. Taking into account the other Orders, my estimates would be about 50 000, which is a considerable force.