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...What causes brain freeze?Do identical twins share the same fingerprints?What Chemical Elements are in the Human Body?What do the Supercells in a Human Body do?The first heart transplant