Convert between US, UK, EU, CM, and international shoe sizes accurately. Perfect for online shopping and finding your perfect fit across different sizing systems.
Shoe sizing systems vary significantly across different countries and regions. Understanding these differences is crucial for finding the perfect fit when shopping internationally or online.
US sizes differ for men and women. Women's sizes are typically 1.5-2 sizes larger than men's for the same foot length. Based on the Brannock Device measurement system.
UK sizes are about 0.5-1 size smaller than US sizes. The UK system starts from a smaller baseline number compared to US sizing.
European sizes use a different formula based on foot length in centimeters. EU sizes are generally larger numbers than US or UK sizes for the same foot length.
Japanese sizes are based directly on foot length in centimeters. A size 25 in Japan corresponds to a 25cm foot length, making it very straightforward.
| Foot Length (cm) | US Men | US Women | UK | EU | Japan |
|---|---|---|---|---|---|
| 23.0 | 5 | 6.5 | 4.5 | 37 | 23 |
| 24.0 | 6 | 7.5 | 5.5 | 38 | 24 |
| 25.0 | 7 | 8.5 | 6.5 | 39 | 25 |
| 26.0 | 8 | 9.5 | 7.5 | 40 | 26 |
| 27.0 | 9 | 10.5 | 8.5 | 41 | 27 |
Our shoe size converter uses standardized international conversion formulas that are widely accepted in the footwear industry. However, sizing can vary between brands, shoe types (athletic vs. dress shoes), and manufacturing standards by up to half a size. We recommend using this as a guide and always checking specific brand sizing charts when available, especially for online purchases.
US and UK shoe sizes use different numbering systems and baselines. Typically, UK sizes are about 0.5 to 1 size smaller than US sizes for the same foot length. For example, a US men's size 9 is approximately a UK men's size 8. The difference arises from different measurement systems and historical sizing standards used in each country.
For accurate foot measurement: 1) Stand on a piece of paper with your weight evenly distributed, 2) Mark the longest point of your heel and the tip of your longest toe, 3) Measure the distance in centimeters, 4) Measure both feet and use the larger measurement, 5) Add 1-1.5cm for comfort and toe room. It's best to measure at the end of the day when feet are typically slightly larger.
Shoe size variations between brands occur due to different lasts (foot molds), design philosophies, target markets, and manufacturing processes. Athletic shoes often fit differently than dress shoes, and European brands may have different width standards than American brands. Always check brand-specific sizing guides and customer reviews for fit information.
Width sizing systems vary significantly: US uses letters (B=standard, D=wide), UK uses similar letters but different standards, while many European countries use numbered width systems. Some Asian countries have narrower standard widths. This converter focuses on length sizing; for width conversions, consult specific brand guidelines as width standards are less standardized internationally.
Children's shoe sizing uses different systems than adults. Many countries have specific children's sizing scales. For accurate children's size conversion, use foot length measurement (in centimeters) as the most reliable method. Children's feet grow quickly, so always measure before purchasing and allow about 1cm of growth room. Some brands also use age-based sizing, but foot length measurement is most accurate.