The Ultimate Shoe Size Converter

The ultimate tool to convert shoe sizes across US, UK, EU, and Chinese (CN) standards.

How to Use This Shoe Size Converter

Step-by-Step Guide

Select Your Gender: Choose whether you're converting men's, women's, or kids' shoe sizes. This is important because conversion scales differ between genders.
Choose Your Current Size System: Select the size system you know your size in (US, UK, EU, CN, or CM). This is your "from" region.
Enter Your Shoe Size: Type your shoe size in the input field. You can enter whole numbers or half sizes (e.g., 8.5, 9.5).
Select Target Size System: Choose the size system you want to convert to. This is your "to" region.
View Your Converted Size: The converter will instantly display your equivalent size in the target system, along with the corresponding foot length in centimeters.

Pro Tips for Accurate Conversion

✓Measure Your Feet: For the most accurate conversion, measure your foot length in centimeters and use the CM option. This eliminates guesswork and ensures the best fit.
✓Consider Brand Differences: Different brands may have slightly different fits even within the same size system. Check our brand-specific charts for Nike, Adidas, and other popular brands.
✓Account for Shoe Type: Athletic shoes, dress shoes, and boots may fit differently. When in doubt, size up for comfort, especially for athletic footwear.
✓Check Reviews: Before purchasing, read customer reviews for the specific shoe model to see if it runs true to size, small, or large.

Conversion Examples

Example 1: US to EU Conversion

Scenario: You wear a US men's size 10 and want to buy shoes from a European brand.

US 10 (Men)→EU 43

Note: European sizes are typically 1-2 sizes larger than US men's sizes. Always check the brand's specific sizing chart for the most accurate conversion.

Example 2: UK to US Conversion

Scenario: You wear a UK size 8 and need to find your US equivalent.

UK 8→US 9 (Men)

Note: UK sizes are typically 1 size smaller than US men's sizes. For women's sizes, the difference is usually 1.5-2 sizes.

Example 3: CM to Size Conversion

Scenario: Your foot length is 26.5 cm and you need to find your size in different systems.

26.5 cm→US 9 (Men) / US 10.5 (Women)

26.5 cm→UK 8 (Men) / UK 8 (Women)

26.5 cm→EU 43

Tip: Using foot length in centimeters (CM) is the most accurate method for size conversion, as it eliminates regional variations and provides a universal reference point.

Example 4: Chinese (CN) Size Conversion

Scenario: You see a Chinese shoe size "265" and need to convert it to US sizes.

CN 265→US 9 (Men)

Note: Modern Chinese sizes are based on foot length in millimeters. A size "265" means your foot is 265mm (26.5cm) long. This system is very accurate and eliminates conversion errors.

A Note on Sizing Accuracy

Shoe sizes can be inconsistent between brands and regions. The conversion data in this tool is based on the official ISO 19407 standard for shoe sizing systems, as documented in publicly available information.

For a comprehensive overview and detailed charts, we reference the information available on Wikipedia's Shoe Size page, which provides a detailed comparison of international systems. This helps ensure our converter provides a reliable and accurate baseline for your needs.

Understanding Shoe Size Systems

Different countries use different shoe sizing systems. Understanding these differences is crucial for online shopping and international purchases.

Common Size Systems:

US Sizes:Most common in North America, uses increments of 0.5

UK Sizes:Traditional British sizing, typically 1 smaller than US MEN

EU Sizes:European sizing based on foot length in Paris Points

Chinese (CN) Sizes:Modern system based on foot length in millimeters (mm). The old system, often confused with EU sizes, is estimated as (CM * 2) - 10.

Japanese Sizes:Based on foot length in centimeters

How to Measure Your Feet

Step 1: Prepare

Measure your feet in the evening when they're at their largest. Wear the type of socks you'll wear with the shoes.

Step 2: Measure

Place a piece of paper on the floor against a wall. Stand on it with your heel against the wall and mark your longest toe.

Step 3: Calculate

Measure the distance from the wall to the mark. This is your foot length in centimeters.

Frequently Asked Questions

How do I convert my shoe size internationally?

To convert your shoe size, you need to know your size in one system (e.g., US) and the system you want to convert to (e.g., EU). Use a comprehensive converter tool that includes charts for men, women, and kids, as the conversion scales differ.

Is EU shoe size the same as US?

No, EU and US shoe sizes are different. For example, a men's US size 10 is roughly an EU size 43. The EU system uses a different scale based on millimeters.

What is shoe size 42 in the US?

An EU shoe size of 42 is approximately a US men's size 9 and a US women's size 11. Using a converter is the best way to get an accurate size.

How does the Chinese (CN) shoe size system work?

The modern Chinese shoe size system is based on the length of the foot in millimeters (mm). For example, a size '265' means the foot length is 265 millimeters. This provides a direct and accurate standard.

Is the old Chinese shoe size the same as EU size?

No, they are often different. The 'old' Chinese system (e.g., size 39, 40) was based on the European (EU) system but manufacturing inconsistencies meant they didn't always match. The old system can be estimated as (Foot Length in CM × 2) - 10.