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Shoe Size Converter — Free 2026

Convert shoe sizes between US, UK, EU, and CM for men and women instantly.

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Understanding Shoe Size Systems

Shoe sizing is surprisingly inconsistent across the world. The United States, United Kingdom, Europe, and Asia all use different measurement systems, and even within a single system, sizes can vary between manufacturers. This converter helps you navigate these differences whether you are shopping internationally online, traveling abroad, or simply trying to understand what your foot measurement means in another system.

US vs UK vs EU Sizing

US and UK sizes are both based on the Brannock system, which measures foot length in inches. However, they use different starting points, so a US size is typically 0.5-2 sizes higher than the equivalent UK size. European sizes use the Paris point system, where each size increment equals 6.67 millimeters. CM sizing, used widely in Asia and Japan, directly corresponds to foot length in centimeters, making it the most straightforward system. For other unit conversions, check out our unit converter.

Tips for Getting the Right Fit

Always measure your feet in the afternoon when they are slightly swollen from daily activity. Measure both feet and use the larger measurement. Leave about a thumb's width (roughly 1 cm) between your longest toe and the end of the shoe. Width varies significantly between brands, so consider trying half sizes or wide options if standard sizes feel tight. When shopping online internationally, always refer to the brand's specific size chart, as conversions can vary. Our age calculator is another handy tool for everyday questions.

Men's vs Women's Size Differences

In the US and UK systems, men's and women's sizes differ for the same foot length. A women's US size is typically 1.5 sizes larger than the men's equivalent. If you wear a women's US 9, that corresponds to a men's US 7.5. European and CM sizes are unisex and do not differ between genders, making them more straightforward for cross-gender shoe shopping.

Frequently Asked Questions

How do I convert US shoe size to UK?

For men, subtract 0.5 from the US size to get the UK size. For women, subtract 2 from the US size to get the UK size. For example, a US men's 10 is a UK 9.5, and a US women's 8 is a UK 6.

What is the difference between men's and women's shoe sizes?

Women's US shoe sizes are typically 1.5 sizes higher than men's for the same foot length. A women's US 8.5 is roughly equivalent to a men's US 7. EU and CM sizes are the same regardless of gender.

How do I convert US shoe size to EU?

The conversion varies by size. Generally, for men, add about 33 to the US size for a rough EU equivalent. For women, add about 31. Our converter uses precise lookup tables for accurate conversions across all sizes.

How do I measure my foot in CM for shoe sizing?

Place your foot on a piece of paper, mark the heel and longest toe, and measure the distance in centimeters. This measurement corresponds directly to CM shoe sizes. Add 0.5-1 cm for comfortable fit. Measure both feet and use the larger measurement.