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    International Shoe Size Conversion: US, UK, EU & JP

    UnitConvertLab Team
    2026-04-05
    6 min read

    Why Shoe Sizes are So Confusing

    There is no global standard for shoe sizes. Each region uses a different starting point and a different increment.

    The Main Systems

    • US / Canada: Based on "barleycorns" (1/3 inch). Men's and women's sizes are different.
    • UK: Also based on barleycorns, but starts at a different zero point.
    • Europe (EU): Uses "Paris Points" (2/3 cm). Sizes are unisex.
    • Japan (JP): The most logical—it's just the length of your foot in centimeters.

    Men's Conversion Table (Approx)

    USUKEUJP (cm)
    87.54126
    98.54227
    109.54328
    1110.54429

    Key Takeaways

    • Japanese sizes are the most accurate (cm)
    • Always check the brand's specific size chart
    • EU sizes don't distinguish between gender