400
There are this many Eagle required merit badges (including optional)
How many is 17
(a) First Aid , (b) Citizenship in the Community , (c) Citizenship in the Nation , (d) Citizenship in the World , (e) Communication , (f) Cooking , (g) Personal Fitness , (h) Emergency Preparedness OR Lifesaving , (i) Environmental Science OR Sustainability , (j) Personal Management , (k) Swimming OR Hiking OR Cycling , (l) Camping , and (m) Family Life .