A shoe size converter is essential when shopping for shoes internationally or from foreign brands. Shoe sizing systems vary by country — the US, UK, EU, and Japan all use different scales. This free tool instantly converts between all major sizing systems for men, women, and children, so you can find your perfect fit no matter where the shoes are made.
Men's Shoe Size Converter
Type a size in any field to convert to all other systems instantly.
How to Measure Your Foot
1. Stand on a piece of paper with your heel against a wall.
2. Mark the tip of your longest toe with a pen.
3. Measure the distance from the wall to the mark in centimeters or inches.
4. Measure both feet and use the larger measurement — most people have slightly different-sized feet.
Tip: Measure in the afternoon when your feet are slightly larger from daily activity.
Men's Shoe Size Chart
| US | UK | EU | JP (cm) | Mondo (mm) | Foot (cm) |
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How to Use the Shoe Size Converter
Shopping for shoes from international brands or overseas retailers often means dealing with unfamiliar sizing systems. US, UK, European, and Japanese shoe sizes all use different scales, and a mistake can mean expensive returns or uncomfortable footwear. This free shoe size converter eliminates the guesswork by converting between all major systems instantly.
Step 1: Select Your Category
Choose between Men, Women, or Children using the tabs at the top. This is important because US and UK sizing differs between genders — for example, a women's US 8 is not the same foot length as a men's US 8. European and Japanese sizes are unisex, but the converter accounts for the offset when translating to gendered systems.
Step 2: Enter a Size in Any System
Type your known shoe size into the corresponding field — US, UK, EU, JP (centimeters), or Mondopoint (millimeters). All other fields update instantly. For example, entering US 10 in the men's tab will show UK 9, EU 43, and JP 28.
Step 3: Use Foot Length for Precision
If you know your actual foot length in centimeters or inches, enter it in the Foot Length fields at the bottom right. This provides the most accurate conversion because it bypasses the approximations inherent in size-to-size mapping. Measure your foot by standing on paper, marking your heel and longest toe, and measuring the distance between marks.
Step 4: Reference the Size Chart
Below the converter, you will find a comprehensive shoe size chart that displays all sizes side by side for the selected category. This is useful when you need to compare multiple sizes at once or print a reference sheet before shopping. The chart includes US, UK, EU, JP, Mondopoint, and foot length measurements.
Understanding Sizing Systems
The US system is based on the Brannock device and uses different scales for men and women. UK sizes run about one size smaller than US men's sizes. EU (European) sizing, also known as French or Paris Point, is unisex and based on a 6.67mm increment. Japanese sizing uses foot length in centimeters directly. Mondopoint, the ISO standard, uses millimeters and is common in military and ski boot applications.
Tips for Accurate Sizing
Always measure your feet in the afternoon when they are at their largest. Wear the type of socks you plan to use with the shoes. If one foot is larger than the other, use the larger measurement. Remember that sizes can vary between brands and even between shoe styles from the same brand, so treat the shoe size converter results as a reliable starting point rather than an absolute guarantee.
Frequently Asked Questions
Is this shoe size converter really free?
Yes, this shoe size converter is completely free to use with no limits, no ads-walls, and no signup. Every conversion runs instantly in your browser, and you can use it as many times as you need.
Is my data safe when using this converter?
Absolutely. Everything runs locally in your browser — no data is sent to any server. Your inputs are never stored, tracked, or shared. You can even use the tool offline once the page has loaded.
How do I convert US shoe size to EU?
Select your gender tab (Men, Women, or Children), then type your US size into the US field. The EU equivalent will appear instantly. For example, a men's US 10 is approximately EU 43, and a women's US 8 is approximately EU 38.5-39.
What is Mondopoint shoe sizing?
Mondopoint is an international standard (ISO 9407) that measures foot length in millimeters. It is used by military organizations, ski boot manufacturers, and some athletic shoe companies. To convert, simply multiply your foot length in centimeters by 10.
How do I measure my foot length accurately?
Stand on a piece of paper with your heel against a wall. Mark the tip of your longest toe and measure the distance from the wall to the mark in centimeters. Measure both feet and use the larger measurement, as most people have slightly different-sized feet.
Do shoe sizes differ between men and women?
Yes, US and UK shoe sizes differ between men and women. A women's US size is typically 1.5 sizes higher than the men's equivalent for the same foot length. EU and JP (CM) sizing is unisex, so the same number applies regardless of gender.
Are half sizes available in all systems?
US and UK systems offer half sizes (e.g., 9.5, 10.5). EU sizes often use half sizes as well (e.g., 42.5, 43.5). The JP/CM system increments in 0.5 cm steps. This converter supports half sizes across all systems for accurate conversions.
Why do shoe sizes vary between brands?
Shoe sizes are not perfectly standardized across manufacturers. Each brand may use slightly different lasts (foot molds) and sizing tolerances. Use this converter as a reliable starting point, but always try shoes on when possible, especially when switching between brands.