Shopping from an international retailer and not sure if a UK 9 fits like your usual US size? The Shoe Size Converter converts between US, UK, EU, and centimeter sizing for both men’s and women’s shoes.
Why men’s and women’s sizes aren’t interchangeable
A common mix-up: men’s and women’s shoe sizing use separate scales, even within the same country’s system. A women’s US size 8 and a men’s US size 8 correspond to different actual foot lengths — women’s sizes typically run about 1.5 sizes smaller in the US system for the same foot length. This tool keeps separate, correct conversion tables for each.
Why the EU/UK number for your size might vary by brand
Sizing isn’t perfectly standardized globally. An athletic shoe brand and a dress shoe brand can label the “same” size number differently because of how their shoe lasts (the mold a shoe is built around) are shaped. Always check a specific brand’s own size chart if you’re ordering from them for the first time, especially internationally.
The most universal reference: centimeters
When in doubt, foot length in centimeters is the closest thing to a universal reference point across all sizing systems — many brands, especially those based in Asia, publish their own size charts directly in centimeters for exactly this reason.
Try it yourself
Pick men’s or women’s, select your US size, and instantly see the matching UK, EU, and centimeter equivalents on the Shoe Size Converter.