The average untrained man can bench about 2/3 of his body weight. With training, he can bench his weight. With serious training more. Interestingly enough it's about the same for women. Of course, the heavier you are , the harder it is to lift your weight since weight increases by volume and strength increases by area. And of course, bench press is only one indicator of strength. And, I have been outwrestled by many smaller women who were not as strong as I am.