In 1927, Charles Brannock invented a measuring device that bears his name and is still used today in most retail shoe stores.
According to the Brannock device, men’s shoe sizes are one size larger than women’s and not two sizes larger as commonly believed. For example, a men’s size 9 shoe would fit a woman’s size 10 foot.
There is a 1/3-inch difference between sizes so if you need to go up or down a half size, you are only changing the size by 1/6-inch. This is not nearly as much as most patients think.
There are also useful conversion charts on the Brannock device’s website (see www.brannock.com ), including charts for children and European sizes.