Shoe Size Conversion
Convert shoe sizes between US, UK, EU and centimetres.
All calculations happen locally in your browser — nothing is uploaded, stored or tracked.
Choose the category
Men, women or kids.
Pick the system you know
US, UK, EU or centimetres.
Enter the size
All other systems update instantly.
What Is a Shoe Size Conversion?
Shoe sizing systems differ between countries: the US, the UK and Europe each use their own scale, and the scales also differ between men's, women's and children's shoes. A US men's 10 is not the same as a US women's 10. This converter maps between systems using standard reference tables.
Sizes are estimates based on widely used conversion tables. Actual fit varies by brand, last (the mould a shoe is built on) and style — always try shoes on or check the brand's own size guide when precision matters.
How Sizing Works
The reference tables below the converter are the commonly cited industry conversions. Because manufacturers differ, the calculator shows the converted value plus a note that fit can vary.
Your data never leaves your device.
Every calculation on this site runs in your browser using vanilla JavaScript. Nothing is uploaded, stored or tracked.
- 100% local, client-side calculations
- No data stored on any server
- No tracking, no analytics, no ads scripts
- Works offline once loaded
Frequently Asked Questions
How do I convert US to UK shoe sizes?
For men, subtract 1 from the US size to get the UK size. For women, subtract 2 (a US women's 8 is a UK women's 6).
How do I convert EU to US shoe sizes?
A rough rule is US men ≈ EU − 33 and US women ≈ EU − 31. The exact value depends on the size — the converter uses standard tables.
How do I measure my foot size in cm?
Stand on a piece of paper, trace your foot, and measure from the heel to the longest toe. Compare the centimetres against the converter.
Are US men's and women's sizes the same?
No — women's sizes are typically 1.5 sizes larger than men's for the same foot length.
Why do my shoes fit differently across brands?
Sizing standards vary by brand and shoe type. Use conversions as a starting point, not a guarantee.