Shoe Size Converter | Convert US to EU, UK to US, JP Shoe Sizes Online Free

About Our Shoe Size Converter

Finding the right shoe size when shopping internationally can be frustrating with different sizing standards across regions. Our free shoe size converter provides instant, reliable conversions between US, UK, EU, and Japanese shoe sizes for men, women, and kids. Whether you're shopping for athletic shoes, dress shoes, or casual footwear, our tool ensures you order the correct size without uncertainty.

Shoe sizing is notoriously inconsistent across brands and manufacturers, which is why our converter is based on industry-standard size charts rather than individual brand specifications. We help you narrow down the right size range so you can make confident purchases from international retailers. The tool works entirely in your browser with no delays or privacy concerns.

Frequently Asked Questions

Why are shoe sizes so different across countries?

Shoe sizing developed independently in different countries based on their own measurement systems. The US uses one scale, Europe uses centimeter-based measurements, the UK has its own standard, and Japan uses yet another system. Modern globalization has made standardized conversion tables essential for online shoppers.

What's the difference between US and UK shoe sizes?

UK shoe sizes are typically smaller than US sizes, usually by about 1-1.5 sizes. For example, a US men's size 10 is roughly a UK size 9 or 9.5. This difference applies to men's, women's, and kids' shoes. Always use our converter to get the exact equivalent rather than trying to estimate.

How do EU shoe sizes work?

EU shoe sizes are based on the Paris Point system, which measures shoe length in centimeters. European women's sizes start at around 35-36 (typically US 5-6) and increase from there. EU sizing is generally consistent and universal across European countries, making it easier to compare once you know your conversion.

How do I measure my foot accurately?

Place a piece of paper on the floor and stand on it barefoot. Mark your heel and the tip of your longest toe, then measure the distance in centimeters. Measure both feet as they may differ slightly. Compare your measurement to the brand's size chart (they usually provide foot length ranges for each size). Do this measurement in the afternoon when your feet are slightly swollen—this is their average size.

Why might a converted size still not fit?

Brand differences are the main reason. Each manufacturer has their own "last" (shoe mold) and grading system. A size 10 Nike might fit differently than a size 10 Adidas or Puma. Additionally, shoe width, arch support, and toe box shape vary by brand. Our converter provides standard equivalents—always check brand-specific reviews and size charts before purchasing.

Should I account for width when converting sizes?

Yes, shoe width is critical for comfort. US shoe widths are often labeled as B (narrow), M (medium), D (wide), or EE (extra wide). European and UK shoes typically don't specify width as clearly. If you have wide or narrow feet, check the brand's width options and customer reviews about how the shoe fits. Our size converter handles length conversions—width is a separate consideration.

Are kids' shoe sizes harder to convert?

Kids' shoe sizes use similar conversion principles as adults, but there's more variation because children's feet grow rapidly. Some brands use age labels (like "ages 3-4") instead of or in addition to sizes. Always measure your child's foot and compare to the specific brand's size chart. Kids' feet grow quickly, so measure before each purchase rather than assuming the same size works year-round.

What about specialized shoe types like athletic or dress shoes?

Athletic shoes, dress shoes, and casual shoes often fit differently even within the same brand. Athletic shoes frequently run smaller and narrower, while dress shoes may run larger. Always read customer reviews mentioning how the shoe fits and check if the brand provides a fit guide. Our converter provides standard size equivalents, but shoe-type-specific fitting guidance from customers is invaluable.

Can I return shoes if the converted size doesn't fit?

Most online retailers accept returns for shoes within 30-60 days if they're unworn and in original condition. Check the specific retailer's return policy before purchasing. Keep packaging and original receipt. Remember that sizing issues are often due to brand variations rather than converter inaccuracy, so try the converted size first before attempting another size.

Is this tool completely free?

Yes, our shoe size converter is completely free with no registration required. It processes everything in your browser, so there's no data uploaded to servers. Use it as many times as you need with no limitations or fees. We're committed to helping people find the right shoe sizes when shopping internationally.