I have a 5 month old full blooded boston who weighs 27 lounds. Hes HUGE!
Sep 26, 2009
weight of a boston by: Anonymous
I've got two 5 mo. old Bostons and one is 10.3lbs.and the other is 8.8lbs. My vet says the larger one will probably weigh in at 18-20lbs. and the smaller 15-18lbs. Bostons should weight between 12 and 25lbs. once full grown, but a lot will depend on the size of their parents. Hope this helps!