European shoe sizes, by contrast, typically range between 39 and 49 for men and 35 and 44/45 for women. The good news is that each U.S. size has a corresponding European size, so you can refer to the appropriate U.S. to European shoe size chart to instantly make the conversion. Convert Your European Shoe Size to U.S.
ISO formula for calculating the EU shoe size for adults. EU shoe size = (foot length in cm + 2 × 0.667) / 0.667. The formula for the EU adult size makes it clearer that each size corresponds to 0.667 cm. For toe clearance, as it is usually the case, two sizes are added (i.e., 2 × 0.667 cm).