US to UK Shoe Size Converter

Free online us to uk shoe size converter between international sizing standards.

Find your perfect fit when shopping from different countries.

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Enter the value to convert

How This Tool Works

The US to UK Shoe Size Converter uses the reference chart on this page to match common adult shoe size labels across US and UK sizing systems. Choose men's or women's sizing, enter the size you know, and the calculator returns the matching label in the other system.

For example, a US men's 9 maps to UK men's 8.5, while a US women's 8 maps to UK women's 6 in this chart. Use the swap control when you need to convert from UK back to US.

  • Input: US or UK shoe size.
  • Reference: Men's or women's US-to-UK size chart.
  • Output: Equivalent shoe size in the opposite system.

Why This Matters

US and UK shoe labels are close enough to be easy to mix up, but the offset differs for men's and women's sizing. Converting before checkout helps reduce wrong-size orders when buying from British brands or international retailers.

Treat the result as a practical starting point, then check the brand's own size guide and fit notes when available.

Common Mistakes to Avoid

  • Do not use the men's offset for women's shoes: women's US sizes are typically about two sizes higher than UK labels.
  • Check the selected gender: the same number can map differently between men's and women's charts.
  • Account for brand fit: lasts, width, and style can affect comfort even when the size label is correct.

Frequently Asked Questions

Common questions about the US to UK Shoe Size Converter

Men's: UK is 0.5-1 size smaller (US 10 = UK 9-9.5). Women's: UK is about 2 sizes smaller.
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