Men's to Women's shoe size conversion chart. All Heels and Boots sold on FierceQueen.com are available in women’s sizes, with the exception of Extreme Boots ~ as they are in men’s sizes. Generally speaking, there is a 1.5 to 2 size difference between U.S. men's and women's sizing. For example, if your a men's size 7 then you would be a women's size 9.