Shoe Size Converter
Convert shoe sizes between US, UK, EU, and JP (cm) systems for men and women. Sizes are approximate — try on when possible.
Inputs
Foot length
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US men
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US women
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UK
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EU
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About Shoe Size Converter
Why brands vary
Each manufacturer has its own "last" (shoe shape). A Nike 10 and a Brooks 10 can differ by half a size. Use this calculator as a starting point, then check brand-specific sizing charts.
Measure feet accurately
Late afternoon (feet swell). Stand on paper, trace around foot, measure heel to longest toe. Add 1cm allowance. Wider foot? Check the width letter (B, D, E, EE).
Children vs adults
US kids sizes go up to 13.5, then restart at 1Y. Adult shoe sizes are completely separate. A boy\u2019s 6 ≈ men\u2019s 6.5 — they generally line up at the transition.