Shoe Size Converter

Shoe sizing is one of the most confusing areas of international shopping because every region uses a different numbering system. A US men's size 10 is not the same as a UK size 10 or an EU size 44, even though all three labels appear on the same box when you buy from global brands. Foot length measured in centimeters or inches is the most reliable common reference, which is why many athletic brands now print Mondopoint or CM lengths alongside regional sizes.

When buying shoes online from another country, start with your foot length rather than your usual size label. Place your heel against a wall, mark the longest toe, and measure in centimeters. US sizes typically run about one size larger than UK sizes for the same foot length, while EU sizes use a different scale entirely based on Paris points. Women's US sizes are usually 1.5 to 2 sizes larger than men's for the same foot length, which catches many shoppers off guard when unisex listings only show one chart.

Running shoes, dress shoes, and boots can fit differently even at the same labeled size because last shapes and padding vary by brand. A half-size up is common advice for running shoes to accommodate toe splay, while dress shoes should fit snugly without heel slip. Kids' sizes add another layer: US big-kid sizes overlap with adult sizes at the upper end, and toddler scales reset at different breakpoints depending on the manufacturer.

Retailers in Europe, Asia, and North America each maintain conversion tables that are close but not identical. Japanese sizes often appear in millimeters directly on the label, which maps cleanly to centimeter foot length. When reselling or buying secondhand internationally, verifying CM length prevents costly returns and the hassle of cross-border shipping both ways.

Use this converter when comparing listings on global marketplaces, preparing for travel shopping, or helping family members abroad pick gifts that actually fit. Matching foot length first and then checking the regional label reduces guesswork and keeps your wardrobe comfortable whether you shop locally or across borders.