International Shoe Size Converter for Fashion

Women's shoe sizes vary the most across international systems. The US system starts lower and uses half-size increments, while the EU system uses the Paris point (2/3 cm increments) as its base unit. UK sizes are similar to US but offset by approximately 2 sizes for women's footwear.

The following table provides standard conversions. Note that individual brands may vary slightly from these values, so always cross-reference with foot length in centimeters for precision.

Men's shoe size conversions are slightly more consistent across brands than women's, though differences still exist. The US-to-EU offset for men's shoes is typically one size different from the women's offset, which is why separate tables are essential.

Japanese and Korean shoe sizes are based directly on foot length in centimeters, making them the most intuitive system for international footwear production.

The EU Paris point system measures the length of the last (shoe form) in units of 2/3 centimeter. US and UK sizes derive from the Barleycorn system, where one size increment equals 1/3 inch. Japanese sizes directly represent foot length in centimeters, and Korean sizes use millimeters of foot length.

Because each system uses a different base unit and starting point, conversions are not perfectly linear. The tables above represent consensus values used across the footwear industry, but specific brands may adjust their sizing based on last shape, target market, and fit philosophy.

For footwear product development, the most reliable approach is to define each size by its foot length in centimeters, then map the appropriate size label for each target market. This ensures consistency regardless of which sizing system a customer references.

Shoe width varies independently of length, and width designations differ across markets. The US uses letter-based width designations (B for standard women's, D for standard men's, with narrower and wider options), while EU sizing traditionally does not include explicit width designations.

For footwear brands designing for global markets, including foot width measurements in centimeters alongside length-based size conversions provides the most complete sizing guidance. This is especially important for e-commerce, where customers cannot try on shoes before purchasing.

Children's shoe sizes present additional complexity because sizing systems reset at different ages. US children's sizes run from 0 to 13, then reset to 1 for youth sizes. EU children's sizes run continuously from approximately 16 to 39. The continuous EU numbering system is generally easier to work with for product development.

Because children's feet grow rapidly, footwear brands targeting this market should provide age guidelines alongside size conversions. However, foot length in centimeters remains the most reliable reference, as growth rates vary significantly between children.

A well-constructed footwear size chart includes conversions across all target markets, foot length measurements in centimeters, and clear instructions for customers to measure their feet at home. Include width guidance if your brand offers multiple widths or if your last runs narrow or wide relative to industry standard.

For e-commerce, an interactive size guide that allows customers to enter their foot length and receive a recommended size in their preferred system reduces returns and increases purchase confidence. Skema3D supports embedding measurement-based sizing tools alongside product listings.