scarpe Sizing Guida: US vs UK vs EU Conversions

If you have ever ordered shoes from a European or British brand and ended up with something that either pinches or swims, you know shoe sizing is not universal. The US, UK, and EU all use different systems, and many brands within those systems disagree on sizes.

How to Measure Your piedi

Stand on paper on a hard floor in the afternoon. Wear the socks you plan to wear. Trace your foot with a pen held vertically against it.

Measure from heel to longest toe. Measure the widest part for width. Measure both feet and always buy to fit the larger one.

US Sizing

Based on the Brannock Device, patented in 1927. Sizes measured in thirds of an inch. Men and women use different scales. A US women's 8 is roughly a US men's 6.5.

UK Sizing

The oldest system, based on barleycorn measurements. For men, UK sizes are about one size smaller than US (US 10 is about UK 9).

For women, about two sizes smaller (US 8 is about UK 6).

EU Sizing

Uses the Paris Point (two-thirds of a centimeter). EU sizes are unisex. Based on shoe last length rather than foot length, so they run about 1 to 1.5 cm longer than the actual foot.

Quick Conversion Rules

US men to UK: subtract 1. US women to UK: subtract 2. US men to EU: add 33. US women to EU: add 31.

UK to EU: add 34. These are approximations. Always check brand-specific charts.

Why Sizes Vary Between Brands

Manufacturers use different lasts. Italian brands run narrow. American athletic brands run wide. Japanese brands like ASICS are true to size but narrow in the toe box. Width is another variable that EU sizing has no standard for.

Consigli for Buying International scarpe Online

Check the brand's own size chart.

Measure in centimeters and match. Read reviews for sizing feedback. Order from retailers with free returns. When in doubt, go half a size up. A slightly roomy shoe can be adjusted with a thicker insole.

uomo Conversion Reference

donna Conversion Reference

Kids scarpe Size Conversions

Children's shoe sizing adds another layer of complexity.

US children's sizes run from 0 (newborn) to 13.5 (big kid), then jump to US men's sizing at 1. There is no children's to adult transition in EU sizing, which uses a continuous scale. A US kids size 13 is approximately EU 31, and the next size up (US youth 1) is approximately EU 32. UK children's sizing follows a similar pattern to the US but offset by about one size.

The biggest mistake parents make with children's shoes is buying too large so the child can grow into them. A shoe that is two sizes too big does not provide proper support, can cause tripping, and can alter gait development. Buy shoes that fit now with about a thumb width of space at the toe, and accept that kids' feet grow fast and they will need new shoes every few months during growth spurts.

How to Handle Half Sizes

Not every brand or sizing system offers half sizes consistently.

European sizing uses whole numbers more often than the US system, so the jump between EU 42 and EU 43 (roughly a US 9 to 9.5) can feel significant. If you fall between EU sizes, order the larger one and use a thin insole to take up the extra space if needed. Some brands offer half sizes in their EU range (like 42.5), but this is not universal.

Width availability also varies wildly between brands and regions.

If you have wide feet and are ordering from a European brand that does not offer width options, consider ordering a half size up to accommodate width. The extra length is usually less problematic than squeezing a wide foot into a narrow shoe.

Athletic scarpe Sizing Quirks

Athletic shoes often run differently from dress shoes, even within the same brand. Running shoes tend to be built on longer lasts than dress shoes, which is why someone who wears a size 9 in Allen Edmonds dress shoes might wear a 9.5 or 10 in Nike running shoes.

This is normal and expected. Always use the specific shoe's size chart rather than assuming your dress shoe size transfers to athletic footwear.

Also be aware that shoe sizes have gradually inflated over the decades, a phenomenon sometimes called vanity sizing. A modern size 9 shoe is slightly longer than a size 9 from 30 years ago. If you are buying vintage or classic shoes from older brands, try them on carefully because their sizing may correspond to an older, slightly smaller standard.

Final Thoughts

The information in this guide is designed to help you make informed decisions based on practical experience and reliable research.

Whether you are just getting started or looking to optimize an existing setup, the principles covered here apply across experience levels. Do not let perfect be the enemy of good. Starting with a solid foundation and making incremental improvements over time is a much more effective strategy than waiting until you have everything figured out before taking any action at all.

Remember that conditions change over time, and what works today might need adjustment down the road. Check back periodically for updated recommendations, and stay open to new products and approaches as they become available. The market continues to evolve, and staying informed gives you the best chance of finding solutions that truly fit your needs. If you found this guide helpful, consider bookmarking it for future reference. We update our recommendations regularly as new products are released and prices change.

Whatever you decide, the most important thing is that you are taking the time to make a thoughtful choice rather than grabbing the first option you see. A little research upfront saves frustration, money, and time in the long run. Trust the process, use the guidelines above, and you will end up with a result you are genuinely satisfied with.