how old do beagles
A beagles life span is about 13 years. Bigger dogs like Bulldogs  only live up to 9 years. Smaller dogs like chiwawas can live up to  12 years old.   A beagle can live iâ¦nto their mid teens. I have one now that is 11  yrs. old. They seem to become deaf and may be blind but still keep  going.