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Ubify Financial Advisory Board
FINANCIAL ANALYSTS & CPA REVIEWERS
About This Tool
Purchasing footwear internationally or ordering shoes online often presents sizing confusion due to divergent sizing standards used across North America, the United Kingdom, and continental Europe.
This conversion matrix calculates equivalent shoe sizes across US, UK, and European (EU) systems while determining estimated foot length in centimeters and inches. For men's footwear, UK sizing is calculated as US - 0.5 and EU sizing as US + 33. For women's footwear, UK sizing is calculated as US - 2.0 and EU sizing as US + 31.
For example, selecting a US Men's size 10.0 converts to European EU 43, United Kingdom UK 9.5, and an estimated foot length of approximately 27.1 cm (10.7 inches).
Please note: Fit and sizing can vary slightly between athletic, dress, and boot manufacturers. Consult brand-specific sizing charts when purchasing fitted footwear.
All sizing conversions execute locally in your web browser. No personal measurements or sizing preferences are uploaded to any server.
How to Use
- 1
Enter your numerical shoe size (e.g. 10.0) into the US Shoe Size input field.
- 2
Select your gender category: 1 for Men or 2 for Women.
- 3
Review the converted European (EU) size and United Kingdom (UK) size.
- 4
Check the estimated foot length displayed in both centimeters and inches.
Frequently Asked Questions
Why do US Men's and Women's shoe sizes differ for the same foot length?
US women's shoe sizes are scaled approximately 1.5 sizes larger in numerical value than US men's sizes for an identical physical foot length.
How is European (EU) shoe size calculated from US size?
For men, European sizing adds 33 to the US size (e.g. US 10 = EU 43); for women, European sizing adds 31 to the US size (e.g. US 8 = EU 39).
Is my shoe size data saved or transmitted?
No. All conversion arithmetic runs strictly inside your local web browser with zero remote transmission.