The exact measurement for EE shoe width depends upon two factors. Width measurements are different for men's and women's shoes. Also, shoe width varies by shoe length.
For men, EE is considered a wide shoe, but for women it is extra-wide. In both men and women's shoes, width increases 1/16 of an inch for each half-size increase. For instance, in men's shoes, the width of a size 9 shoe is 4 1/16 inches. A size 9 1/2 shoe is 4 1/8 inches wide, and the width of a size 10 shoe is 4 3/16 inches. For women, a size 7 shoe has a width of 4 3/16 inches, while a size 7 1/2 is 4 1/4 inches wide.