I wear a 10 in sandals and 9 1/2 in pumps.  I purchased these in a 10 but could have used a 9 1/2.  They are VERY high,  comfortable to stand in,  but difficult to walk in for me.  Usually 4 inch is my limit but these are more than 4 inches.  They a very sexy.  If you can walk in 4 inch + shoes, these would a very classy with your wardrobe.  Width is great for a width B/C; my feet are a little wide.