In the Shoe Size Converter, simply select "Foot length in inches". The calculator converts the inches into centimetres (1 inch = 2.54 cm) and then it also converts the foot length into the sizes of other shoe size systems using the international ISO formula based on centimetres. Converter Foot length - Inch. To be considered as a standard shoe, a size 8 will have a 3 9/16 inches wide. However, if you have a foot that is 3 9/16 inches wide but your foot measures 5 sizes, then definitely you will need a wider shoe for your size 5 shoe measurement. Type the number of USA & Canada, men you want to convert in the text box, to see the results in the table. 7.5 USA & Canada, men. is equal to. 40 Europe. Chart. A shoe size is a numerical indication of the fitting size of a shoe for a person. Several different shoe-size systems are still used today worldwide. Pick shoe size to convert. Shoe sizes vary in length and width between sizing systems. Find the conversion charts for both. Different Sizing Systems. Shoe sizes vary across different regions and countries around the world. There are several sizing systems in use, each with its own standards and measurements. The following three formulas are used to calculate your shoe size based on your foot length. USM= (3 * L) - 22 U SM = (3 ∗ L) − 22. USF= (3 * L) - 21 U SF = (3 ∗ L) − 21. USC= (3 * L) - 9.67 U SC = (3 ∗ L) − 9.67. Where L is the length in inches. USM is men's size. USF is females size. USC is children's size. Shoe Size Definition. Formula: The formula for converting inches to shoe size can vary slightly depending on the region and sizing system used. One common formula used in the United States is: Shoe Size (US) = (Foot Length in Inches - 24.3) / 0.229. Where: Shoe Size (US) represents the shoe size in the United States sizing system. How to measure your feet. Remember to measure both feet, making a note of the longest. Place your foot on a flat surface with your heel against a straight edge. Place a ruler beside your foot touching the straight edge your heel is also touching, then take the length in millimetres from the tip of your longest toe to your heel. The calculator is suitable for converting women's shoe sizes, men shoe sizes und children shoe sizes and baby shoe sizes. The common size systems, namely EU shoe sizes , UK shoe sizes , US shoe sizes and also Mondopoint shoe sizes, are converted. 0ybpiu.