Are EU Shoe Sizes Unisex? The Short Answer

Yes, EU shoe sizes are unisex. A size 42 in a men’s shoe is the same length as a size 42 in a women’s shoe. The sizing system measures the foot’s length in centimeters, and it doesn’t change based on gender. This is different from US sizing, where men’s and women’s sizes are completely different numbers.

The catch is fit. While the length is the same, the width and shape can differ. Many brands make “men’s” shoes on a wider last and “women’s” shoes on a narrower one. So you might wear the same EU size in both, but the shoe will feel different on your foot.

How EU Sizing Works

EU sizes are based on the Paris point system. One Paris point equals two-thirds of a centimeter. That’s about 0.66 centimeters or roughly a quarter inch. Each full size step is that small increment.

This means EU sizes are very precise. A size 41 is 27.3 centimeters. A size 42 is 27.9 centimeters. The difference between sizes is small, so you have less wiggle room than with US sizes.

Because the system is purely length-based, there is no separate male or female scale. A foot that measures 27.9 centimeters is a size 42, regardless of who owns the foot. This is why EU sizing is considered truly unisex.

Why Brands Still Label Shoes “Men’s” or “Women’s”

Even though the numbers are unisex, brands still separate their lines. This comes down to fit and design, not the sizing math.

Men’s shoes typically use a wider last, especially in the toe box and heel. Women’s shoes usually have a narrower heel and a more tapered toe. This is a generalization, but it holds true for most mainstream brands.

You also see design differences. Colorways, materials, and silhouettes are often marketed to one gender. A chunky sneaker in neutral tones might be labeled “men’s,” while the same shoe in pastel colors is “women’s.” The size numbers are the same, but the style choices differ.

How to Convert Between Men’s and Women’s EU Sizes

Here is the practical part. If you find a shoe you like in the “men’s” section, you can wear it. Just focus on the EU size, not the US conversion.

Here is a quick reference for common sizes:

  • EU 39: US Men’s 6, US Women’s 7.5
  • EU 40: US Men’s 6.5, US Women’s 8
  • EU 41: US Men’s 7.5, US Women’s 9
  • EU 42: US Men’s 8, US Women’s 9.5
  • EU 43: US Men’s 9, US Women’s 10.5
  • EU 44: US Men’s 10, US Women’s 11.5
  • EU 45: US Men’s 11, US Women’s 12.5

If you normally wear a US Women’s 9, look for EU 41 in any shoe, regardless of the gender label. If you normally wear a US Men’s 10, look for EU 44. The EU number is your constant.

Width Matters More Than You Think

Length is only half the story. Width is where unisex sizing gets tricky.

If you have narrow feet and buy a “men’s” EU 42, the shoe might feel loose. The wider last means your foot slides around. This causes blisters and heel slip. You might need to size down to an EU 41 to get a snugger fit, even though the length is technically correct.

If you have wide feet and buy a “women’s” EU 42, the shoe might pinch. The narrower last squeezes your toes. In this case, you might need to go up to an EU 43 to get enough room.

The best approach is to measure your foot. Stand on a piece of paper, trace your foot, and measure from heel to longest toe. Compare that to the brand’s size chart. Most brands list the exact centimeter length for each EU size.

Brands That Truly Make Unisex Shoes

Some brands design shoes on the same last for everyone. These are genuinely unisex, not just in size but in fit.

Adidas uses the same last for many of their classic silhouettes. The Stan Smith and Superstar are built on the same shape for men and women. If you wear an EU 42 in the men’s version, you wear an EU 42 in the women’s version.

Converse Chuck Taylors are also unisex in construction. The sizing is the same across genders. The only difference is the width of the canvas, which is minor.

Nike is more complicated. Their “women’s” shoes often use a narrower last. But their lifestyle sneakers like the Air Force 1 and Dunk are built on unisex lasts. You can wear either version in the same EU size.

For dress shoes, brands like Clarks and ECCO use unisex lasts. Their EU sizes are consistent. A size 41 in a men’s loafer fits the same as a size 41 in a women’s loafer.

Practical Tips for Buying Unisex Shoes

Here is how to make unisex sizing work for you:

First, always check the centimeter measurement. The EU number is helpful, but the exact length in centimeters is more accurate. Brands sometimes round up or down.

Second, read reviews from people of the opposite gender. If you are a woman buying men’s shoes, look for reviews from men about width. If they say the shoe runs narrow, you know to size up. If they say it runs wide, you might size down.

Third, consider the sock thickness. If you wear thick socks in winter, size up half a size. If you wear thin no-show socks, stick with your true size.

Fourth, pay attention to the material. Leather stretches over time. A snug leather shoe will break in and mold to your foot. A canvas or mesh shoe will not stretch much. Buy those in your exact size.

Finally, buy from a retailer with a good return policy. Unisex sizing is a guideline, not a guarantee. You might need to try two sizes to find the right fit. That is normal and expected.

When Unisex Sizing Fails

Unisex sizing works for most casual shoes. It fails for performance footwear.

Running shoes are designed for specific biomechanics. Women’s running shoes often have a different heel-to-toe drop and a narrower heel cup. Men’s running shoes have a wider base. These differences are not about size; they are about foot mechanics.

Similarly, hiking boots and work boots are often gender-specific. They use different lasts and different support structures. You can wear the opposite gender’s version, but the fit will not be optimal.

High heels are another exception. A women’s high heel in EU 41 is the same length as a men’s EU 41. But the shape of the shoe is designed for a narrower foot. Most men will find them too tight in the toe box.

Final Verdict on EU Sizing

EU shoe sizes are unisex in their measurement system. The numbers represent foot length, not gender. You can confidently buy shoes from the “opposite” section if you know your EU size.

The key is to focus on fit, not labels. Measure your foot, check the brand’s size chart, and be willing to try a half size up or down. Leather shoes give you more room for error. Synthetic shoes are less forgiving.

For everyday sneakers, casual shoes, and boots, unisex EU sizing works great. For performance and specialty footwear, stick with the gender-specific version. Your feet will thank you.

Frequently Asked Questions

Is a women’s EU 40 the same as a men’s EU 40?

Yes, the length is exactly the same. A women’s EU 40 measures 25.3 centimeters, and a men’s EU 40 measures the same. The difference is in the width. Women’s shoes are usually built on a narrower last, so the men’s version might feel wider even at the same size.

How do I convert US men’s to EU sizes?

US men’s sizing is roughly EU sizing minus 33. A US men’s size 9 is approximately EU 42. A US men’s size 10 is EU 43 or 44, depending on the brand. Always check the brand’s size chart for the exact conversion.

Can I wear men’s shoes if I am a woman?

Absolutely. Many women buy men’s sneakers for the wider toe box and more relaxed fit. Just know your EU size and be prepared for a wider shoe. If you have narrow feet, you might want to size down half a size for a snugger fit.

Do EU sizes run true to size?

Generally, yes. EU sizes are based on actual foot length in centimeters, so they are more accurate than US sizes. However, some brands run small or large. Always check the centimeter measurement on the size chart before buying.

Are Nike shoes unisex in EU sizing?

Nike uses EU sizing on all their shoes, but the fit is not always unisex. Their lifestyle shoes like Air Force 1 and Dunks use a unisex last. Their running shoes and training shoes have gender-specific lasts. Check the product page for fit notes.