Shoe Size Converter
Convert shoe sizes between US Men's, US Women's, UK, EU, and CM foot length using a standard conversion chart.
Converted Sizes
US Men's
9
US Women's
10.5
UK
8.5
EU
42.5
CM (Foot Length)
27
How to Use the Shoe Size Converter
Select the sizing system you know (US Men's, US Women's, UK, EU, or CM/foot length) and enter your size. The converter matches your size against a standard shoe-size conversion chart and shows the equivalent size in every other system at once.
Why Shoe Sizes Don't Convert With a Simple Formula
Shoe sizing systems were developed independently by different countries and don't scale linearly against each other — a half-size step in the US system doesn't always correspond to the same fixed step in EU or UK sizing. That's why this tool uses a reference conversion table rather than a single formula, matching your entered size to the closest row and reading across for the other systems. Keep in mind that exact fit can still vary slightly by brand and shoe style, since manufacturers don't follow these charts with perfect precision.
Example
A US Men's size 9 converts to approximately US Women's 10.5, UK 8.5, EU 42.5, and a foot length of about 27.0 cm.
Common Use Cases
- Shopping for shoes from an international retailer that lists sizes in a different system.
- Converting between men's and women's US sizing.
- Checking your foot-length measurement against a standard size chart.
FAQs
Why does my converted size feel slightly off in a specific shoe?
Standard conversion charts give a reliable starting point, but individual brands and shoe styles vary in their exact last (the mold a shoe is built on), so the same converted size might fit differently between two brands. When possible, check the specific brand's own size chart for the most accurate fit.
How is the US Women's to US Men's conversion calculated?
This chart follows the common industry convention where US Women's sizing runs about 1.5 sizes larger than the equivalent US Men's size (e.g., a Men's 9 is roughly a Women's 10.5).
What if my exact size isn't in the table?
The converter matches your entered size to the closest available row in the reference chart, so sizes between listed increments will show the nearest equivalent rather than an interpolated exact value.