DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   fathom /fˈaðəm/ (fm /ˌɛfˈɛm/)
   Faden <masc> [naut.] , Klafter <masc, neut> [hist.]
            Note: als Längenmaß – ca. 180 cm
            Note: unit of length – 6 feet