Hello Instere0, I would suggest that you not worry so much about weight of the grown dog since she is still a pup. Lets just say that I hope she fits the bottom - middle end of the Neapolitan Mastiff weight and height standard. The thing to do is to keep her light and trim. Do not over feed her in an attempt to claim how heavy she is. The Neo has enough baggage it hauls around already. So, exercise her appropriately and feed her a very good quality food (perferable raw) and keep her thin and healthy. She will be fine and can fill out later. Ok, is you really want a swag - I wuld say 115 lbs. 27 inches.