Average Weight of a Woman Research shows that the average weight of women in the UK is 10 stone 3.5lbs. The average weight in 1951 was 9 stone 10lbs. In America, the average weight for women is 11 stone 1.5lbs. Other interesting facts...How do you stop the hiccups?Why do we say ‘bless you’ when someone sneezes?What do the Supercells in a Human Body do?Save a LifeFacts about teeth