See the below image for the Boot size conversion diagram. Boot Sizing. There are 9 widths in the US system. From narrowest to widest, they are: AAA, AA, A, B, C, D, E, EE, and EEE. The D width is considered to be “medium” for men and B width for women. The widths are linear and are separated by 3/16 of an inch however the actual width measurement which yields a D width varies with the length.
There is a difference of roughly 1.5 – 2 sizes between men’s and women’s boots and shoes depending on the brand. If you measure your foot with a ruler in inches, you can find the correct women’s shoe or boot size using the chart below.
Women’s Sizing Many women like the look and styling of our men’s boots and use a simple conversion to find the right size. To determine what men’s size you wear, simply subtract 1.5 sizes from your current ladies shoe size. For example, a ladies size 7 equals a mens 5.5.