According to the Daily Mail, the weight of a size 16 lady fluctuates greatly. According to a survey done by the newspaper, the weights of four women who all wore size 16 ranged from 148 to 204 pounds.
This is partially due to the fact that women who wear the same clothing size may have different frames, carry their weight differently, or be of various heights. Moreover, women’s apparel sizes vary substantially between companies, thus a size 16 from one brand may fit very differently from a size 16 from another company. While a size 16 is typical for women, there is no specific weight range associated with it.