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Convert between shoe sizes instantly. Our free online shoe size converter supports US, UK, EU, AU, and cm sizes for men, women, and kids with precise results.

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Shoe Size Converter

Free Shoe Size Converter, Convert US, UK, EU, AU, CM & Inches for Men, Women & Kids

Convert shoe sizes between any international sizing system instantly with OmniConverter's free shoe size converter. A US men's size 9 equals a UK size 8 and an EU size 42. A US women's size 7 equals a UK size 5 and an EU size 37. Supports US Men's, US Women's, Kids, UK, European (EU), Australia (AU), centimeters, and inches. Whether you're shopping internationally or gifting footwear, our converter helps you find the right size.

How It Works

Convert in three simple steps.

1

Enter Your Shoe Size Value

2

Select Source and Target Shoe Size Systems

3

Find Your Equivalent Shoe Size

US
EU

Conversion Identity

9US / Canada=9EU

Unit Factor

Size 10 US =

44

EU

Popular Shoe Size Conversions

US to EUEU to USUS to UKUK to USUK to EUEU to UKUS to AUAU to USEU to cmcm to EUUS to cmcm to USUK to cmcm to UKAU to cmcm to AUUS to InchesInches to US

Real-World Use Cases

Shoe size conversion is essential for online shopping from international brands and retailers, shopping during overseas travel, buying gifts for friends or family in other countries, understanding sizing from luxury European brands (which use EU sizes), and shopping on global platforms like ASOS, Zalando, Farfetch, or Amazon where multiple size systems are listed.

Frequently asked questions

Quick answers to common conversion questions

How do I convert US shoe size to EU?+

Use the size chart for the selected shoe type, since conversions vary by brand and region.

Why do shoe sizes differ by country?+

Each market uses its own sizing system and measurement standards.

How do I convert UK size to centimeters?+

Use the chart or the length conversion if you know the foot length in centimeters.

What is the difference between men's and women's sizing?+

The systems are different and brands may add or subtract half sizes for fit.

Can I convert shoe size to inches?+

Yes, the converter can translate the size across region systems and physical measurements.

Does width affect conversion?+

Width is not always included in standard size charts, so fit can vary by brand.

How should I choose the right size?+

Measure the foot, compare with the regional chart, and allow for room for movement.

Are children’s shoe sizes different?+

Yes, children’s charts usually use age and foot length rather than adult sizing conventions.

What does EU shoe size represent?+

It is based on the length of the foot in millimeters, adjusted by a region-specific formula.

Can I convert centimeters to shoe size?+

Yes, if you use the appropriate chart for the selected shoe system.

Latest Blog Posts

Tips, guides, and insights about unit conversions

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Quick Answer: Shoe Size Converter

Convert shoe size instantly — enter any value and get all units at once. Common shoe size conversions include US to EU (US 9 = EU 42), UK to US (UK 8 = US 9), and cm to US (27 cm = US 9). Shoe size conversion is essential for online shopping, international travel, and buying shoes from foreign retailers.

How the Shoe Size Converter Works

Our shoe size converter uses regional size charts to convert between US, UK, EU, AU, and centimeter sizes. Select your gender and enter your size for accurate conversions.

Formula & Sources

Sizes are table-based, not formulaic. Tables from ISO 9407 and brand charts; measure foot in cm for best fit.

Worked Example

Example: Measure foot 27 cm → EU 42 → US 9 (men). Always try on — brands vary by ~0.5 size.

Common Shoe Size Conversions

Common shoe size conversions include US to EU (US 9 = EU 42), UK to US (UK 8 = US 9), and cm to US (27 cm = US 9).

When to Use Shoe Size Conversion

Shoe size conversion is essential for online shopping, international travel, and buying shoes from foreign retailers.

Accuracy & Common Mistakes

Table-based sizes are approximate. Different brands use slightly different lasts; always check the brand's official chart and measure both feet. Always verify critical results with a second source for safety-critical tasks.

Frequently Asked Questions

Is US 9 the same as EU 42?

For men's, US 9 ≈ EU 42 ≈ 27 cm. Women's differs — check gender and brand chart.

Should I measure feet in cm?

Yes — cm is most reliable. Measure both feet evening, standing, and use the larger.

Do sizes vary by brand?

Yes, up to 0.5 size. Always check the brand's official chart.

Popular Shoe Size comparisons

Jump directly to a side-by-side comparison — no typing needed. Also discoverable via search.

US / Canada → UK→US / Canada → EU→US / Canada → Australia→US / Canada → Centimeters→UK → EU→UK → Australia→
View all comparisons

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