One way to measure the foot is the one used by the master of shoe business. Take a tailor centimeter or millimeter flexible tape. Wrap her feet in circumference at its widest point - usually it is in the toe of the foot beam. Then the result is compared with the approved and certain tables GOST. However, this option is not for everyone.
Alternatively, you can use fairly simple formula W = 0, 25 B - 0, 15 C - A. Here W - this is the size that you are, in fact, trying to determine, B - girth feet in beam (measured in millimeters) C - is the length of the foot (in mm), and A - constant coefficient prescribed table prepared specially for the calculations. According to her pinetok ratio is 20, and for small children in the nursery categories - 16, 5, school shoes is determined by the ratio 13 5. Shoes for boys takes for calculating a coefficient equal to 16, 2, for girls - 16. Women and men differ in all unit 16 and 17, respectively. Now, measure all the parameters, you can easily calculate the fullness of his legs.
Considered in girth beams is quite simple. To do this, measure the leg in a circle at the widest points of the forefoot. All measurements are also made using a centimeter or millimeter tape.
You can also take the help of measurement professionals. For example, many stores have devices for such experiments.
You can take a closer look to the shoes that wear constantly. Especially if it is well-known brands. Measure the volume samy widest part of the shoe manufacturer's standards and learn. Every self-respecting designer initially defines which he creates his legs model.