Sizes
Shoe size is an alphanumerical indication of the fitting size of a shoe for a person. Often it just consists of a number indicating the length because many shoemakers only provide a standard width for economic reasons. There are several different shoe-size systems that are used worldwide. These systems differ in what they measure, what unit of measurement they use, and where the size 0 (or 1) is positioned. Only a few systems also take the width of the feet into account. Some regions use different shoe-size systems for different types of shoes (e.g., men's, women's, children's, sport, or safety shoes).
Units for shoe sizes vary widely around the world. European sizes are measured in Paris Points, which are worth two-thirds of a centimeter. The UK and American units are approximately one-quarter of an inch, starting at 8ΒΌ inches. Men's and women's shoe sizes often have different scales. Shoes size is often measured using a Brannock Device, which can determine both the width and length of the foot.
Read more about this topic: Orthopaedic Footwear