YIO Sneaker Size Converter – Men’s & Women’s Shoe Size Converter
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Convert men's and women's sneaker sizes across popular brands using UK, US, EU and CM sizing.
Convert sneaker sizes across popular footwear brands and international sizing systems in seconds.
YIO Sneaker Size Converter helps you find the closest comparable shoe size when switching brands or shopping with unfamiliar UK, US, EU, or centimetre sizing. Choose your gender, current sneaker brand, size system and known size. Then select another brand to see the closest suggested match.
WHY USE YIO SNEAKER SIZE CONVERTER?
Footwear labels are not perfectly consistent. A familiar UK size can correspond to a different US or EU label depending on the manufacturer. This extension places the relevant information in a quick, easy-to-read comparison so you can make a better-informed decision without repeatedly searching through separate charts.
MEN'S AND WOMEN'S SIZE MODES
Switch between dedicated adult men's and women's modes. The selected mode is applied throughout the comparison so the result is easier to understand and less likely to be confused with another gender's US sizing.
COMPARE BRANDS AND SIZE SYSTEMS
Start with a size you already wear and compare it with another supported sneaker brand. Results can be displayed in UK, US, EU, or CM sizing. An estimated foot-length reference is included to provide a more useful common comparison point.
KEY FEATURES
Separate adult men's and women's sizing modes
Comparisons across popular sneaker and footwear brands
UK, US, EU and CM size systems
Brand-to-brand size matching
Estimated foot-length context
Practical brand and model fit reminders
One-click access to the full YIO Designer sneaker size guide
Locally remembers your most recent selections
Works without reading your browsing history
No advertising and no sale of personal information
PRIVACY-FIRST BY DESIGN
The extension does not request access to the websites you visit and does not read your browsing history. Your recent gender, brand, system, and size selections are stored locally in the browser only so the converter can reopen with your previous choices. Clicking a clearly labelled YIO Designer link opens the website in a new tab.
IMPORTANT SIZING INFORMATION
Sneaker size labels are useful references, but they cannot guarantee physical fit. Results may vary by model, last, width, construction, material, region, and personal preference. Some brands also distinguish between a CM label printed on a shoe and a measured foot length. Treat each result as conversion guidance and review the product-specific size and fit information before purchasing.
HOW TO GET THE BEST RESULT
Select the correct men's or women's mode.
Choose a sneaker brand and the sizing system you already know.
Select your current size.
Choose the brand and sizing system you want to compare.
Review the suggested match, foot-length reference, and fit note.
ABOUT YIO DESIGNER
YIO Sneaker Size Converter is created by YIO Designer to make international sneaker shopping easier. For measuring instructions, additional conversion context and product-specific information, open the full sneaker size guide from the extension footer.
This extension is an independent sizing utility. Brand names are used only to identify the sizing system selected by the user. No affiliation or endorsement by the listed footwear brands is implied.