However, because young, smaller males are similar in size to adult females, it is difficult to determine the sex of a bear by their size alone. Average weights for adult bears in Florida range from 250 to 450 pounds for males and 125 to 250 pounds for females. There have been two male bears that set a record for the state in excess of seven hundred pounds. One was a 740 lb bear and the other was 760 lb bear, both were found in 2015 in Seminole County.