Shoe Size Calculator

Calculate cubic yards, bags needed, weight, and costs instantly for slabs, footings, columns, and stairs with waste factor.

Gender:
Convert:

How to Use the Shoe Size Converter

Our free online shoe size calculator makes international shopping effortless by instantly converting between US, EU, UK, and centimeter measurements for men's, women's, and kids' footwear. Whether you're ordering sneakers from Europe or boots from the UK, accurate shoe size conversion ensures the perfect fit every time.

Understanding International Shoe Size Systems

Different regions use distinct shoe sizing standards. The US shoe size system uses different scales for men and women, with women's sizes typically 1.5-2 numbers higher than men's for the same foot length. European shoe sizes follow the Paris point system, where each size represents 2/3 of a centimeter. UK shoe sizes closely mirror US sizing but typically run 0.5-1 size smaller.

The most accurate method for shoe size conversion uses foot length in centimeters, which our calculator supports. By selecting "By Length" mode and entering your foot measurement, you'll receive precise size conversions across all regional sizing systems, eliminating guesswork when ordering footwear internationally.

Step-by-Step Shoe Size Conversion Process

  1. Select your gender category (Men, Women, or Kids) for accurate sizing standards
  2. Choose conversion method: "By Size" if you know your current shoe size, or "By Length" for foot measurements
  3. For size conversion: Select your region (US, EU, UK, or CM) and enter your known shoe size
  4. For length conversion: Enter your foot length in centimeters for the most precise results
  5. View instant conversions across all international sizing systems
  6. Copy results for easy reference when shopping online or in-store

Tips for Accurate Shoe Size Measurement

For the best results with our shoe size calculator, measure your feet at the end of the day when they're slightly swollen. Stand on a piece of paper with your heel against a wall, mark your longest toe, and measure the distance in centimeters. Always measure both feet and use the larger measurement, as most people have one foot slightly bigger than the other. When ordering online, consider that athletic shoes often benefit from a half-size up for toe room during activity, while dress shoes may fit true to size.

Frequently Asked Questions

How do I convert US shoe size to EU size?
To convert US to EU shoe size, use our shoe size converter tool above. Generally, add 31-33 to your US men's size or 30-31 to women's size to get the approximate EU size. For example, US men's size 10 equals EU size 43. Our calculator provides precise conversions for all sizes.
Are shoe sizes the same for men and women?
No, men's and women's shoe sizes differ significantly. A women's US size 8 is approximately equivalent to a men's US size 6.5. Women's shoes are typically 1.5-2 sizes larger than men's for the same foot length. Always select the correct gender when using our shoe size calculator for accurate conversions.
How accurate are international shoe size converters?
Our shoe size converter is highly accurate, using industry-standard conversion charts from major footwear manufacturers. However, sizing can vary slightly between brands and styles. We recommend measuring your foot length in centimeters for the most precise size match when shopping internationally.
What if my foot measurement falls between sizes?
If your foot length falls between two sizes, we generally recommend sizing up for comfort, especially for athletic shoes and boots. For dress shoes or narrow styles, you might prefer the smaller size. Consider factors like shoe width, toe box shape, and whether you'll wear thick socks.
How do I measure my foot for shoe size conversion?
Stand on paper with your heel against a wall, mark the longest toe, and measure the distance in centimeters. Measure both feet and use the larger measurement. Enter this value in our shoe size calculator using the "Foot Length (CM)" option for the most accurate size conversion across all regions.
Do European shoe sizes work the same in all EU countries?
Yes, EU shoe sizes follow a standardized system across all European countries, based on the Paris point measurement (2/3 of a centimeter). A size EU 42 is the same in Germany, France, Italy, and Spain. However, UK sizes differ from EU sizes despite Britain being geographically in Europe.
Can I use this calculator for sneakers and boots?
Yes, this shoe size converter works for sneakers, boots, dress shoes, sandals, and all footwear types. However, note that some athletic shoe brands run large or small. Athletic shoes often benefit from a half-size up for toe room during activity, while boots may require thicker socks considered in sizing.
Why do shoe sizes vary between brands?
Shoe size variations between brands occur due to different lasts (foot-shaped molds), design philosophies, and manufacturing standards. Some brands run narrow or wide, affecting fit despite identical size numbers. Our shoe size calculator provides baseline conversions, but always check brand-specific sizing guides when available.

© 2026 Tool Vault - Free shoe size converter for instant US, EU, UK sizing conversions.

Fast. Private. No signup required.