The bulldog is a type of dog with characteristically big shoulders and a matching head. An english bulldog is an incredible way to get excercise and enjoy life. A fully grown english bulldog can range in weight anywhere from 45 to 55 LBs and are approximately a foot and a half tall. British bulldog puppy. You will never find a better companion than a bulldog. English bulldogs are just great with young ones due to their docile nature and live about 10 years old depending on who you ask.