👟 EU to US Shoe Size Converter

How to Use the EU to US Shoe Size Converter

Enter the EU size, pick men or women, and press Convert. The tool returns the US size, the UK size, and the foot length in centimeters from a standard conversion chart. Gender matters enormously here: EU 42 is a men US 9 but a women US 10.5, so converting without gender is meaningless.

Use this when ordering shoes from European brands, reading size labels on imported shoes, or translating your size for international stores. The centimeter column is the secret weapon: foot length does not change between countries, so matching centimeters beats converting size numbers when precision matters, especially for athletic shoes.

Why There Is No Simple Formula

European sizing counts in Paris points, each two-thirds of a centimeter, measured on the last (the foot-shaped form), not the foot. US sizing steps about a third of an inch per size on separate men and women scales. The two systems start at different zeros and step at different rates, so no clean formula connects them. Charts compiled from manufacturer data are the standard, and the converter encodes one.

Worked Example

EU 42, men. The chart reads: EU 42 → US 9, UK 8.5, foot length 26.0 cm. For women, the same EU 42 → US 10.5 to 11, UK 8.5 to 9, same 26.0 cm foot. Notice the centimeter value is identical for both genders: the foot did not change, only the numbering. That is why shoe fitters say to trust centimeters over converted sizes whenever the brand publishes them.

Men Size Chart (EU → US / UK / CM)

EU 39 → US 6, UK 5.5, 23.5 cm. EU 40 → US 7, UK 6.5, 24.4 cm. EU 41 → US 8, UK 7.5, 25.4 cm. EU 42 → US 9, UK 8.5, 26.0 cm. EU 43 → US 10, UK 9.5, 27.0 cm. EU 44 → US 11, UK 10.5, 27.9 cm. EU 45 → US 12, UK 11.5, 28.6 cm. EU 46 → US 13, UK 12.5, 29.4 cm. EU 47 → US 14, UK 13.5, 30.2 cm. Half EU sizes fall between the listed US values.

Women Size Chart (EU → US / UK / CM)

EU 35 → US 4, UK 2, 20.8 cm. EU 36 → US 5.5, UK 3.5, 22.2 cm. EU 37 → US 6.5, UK 4.5, 23.0 cm. EU 38 → US 7.5, UK 5.5, 23.8 cm. EU 39 → US 8.5, UK 6.5, 24.6 cm. EU 40 → US 9.5, UK 7.5, 25.4 cm. EU 41 → US 10.5, UK 8.5, 26.2 cm. EU 42 → US 11, UK 9, 26.7 cm. Women US runs about 1.5 sizes above men US for the same foot, which is why the same EU number converts differently.

Tips for Buying Shoes in EU Sizes

Measure your feet in centimeters and shop by that number first. Stand on paper in the socks you will wear, mark heel and longest toe, and measure in the evening when feet are at their largest. If the brand lists a centimeter range per size, match it directly and skip the EU-to-US conversion entirely.

Expect brand variation of half a size. Italian dress shoes often run narrow and long, German comfort brands run generous, and athletic brands each have their own quirks. When between sizes in a new brand, size up for running shoes (toes need room on downhills) and try both for dress shoes. Read return policies before ordering across an ocean; a free return beats a forced guess.

EU Sizes for Kids

Kids EU sizes run 24 to 35 roughly, mapping to small US youth sizes, but children feet grow fast enough that converting old sizes is unreliable. Measure the child foot in centimeters every few months and buy 1 to 1.5 cm of growing room. A thumb width of space at the toe is the classic check, and it works in any sizing system.

Never hand down the conversion without remeasuring. Two kids with the same EU size last year can need different sizes now, and brands change lasts between seasons. The centimeter measurement takes thirty seconds and prevents the blisters and toenail bruises that come from guessed sizes.

Common Conversion Mistakes

The top mistake is converting without specifying gender: EU 42 as "US 9" is only true for men. The second is ignoring width; D is standard men, B standard women, and wide feet often need to size up half regardless of length. The third is trusting memory of your size instead of measuring, since feet spread with age and weight changes.

Finally, do not convert twice. Going EU → US → UK accumulates rounding at each step; convert once from the original number or, better, from centimeters. Each conversion is an approximation, and chaining approximations is how a perfect fit becomes a return label.

A Second Worked Example: The Running Shoe

EU 43, men's. The chart reads: US 10, UK 9.5, foot length 27.0 cm. For running shoes, add the runner's rule: a thumb's width, about 1 to 1.5 cm, between longest toe and shoe end. So the 27.0 cm foot wants a shoe with about 28 to 28.5 cm inside, which often means buying the EU 44 instead. Running shoes fit long by design; dress shoes fit close. The same foot takes different sizes in different shoe types, and that is correct.

This is why runners obsess over centimeters. The EU number gets you to the right neighborhood; the cm measurement plus the thumb's width gets you to the right shoe. When the brand publishes internal length, trust it over the converted size.

Why Athletic Shoes Fit Differently

Sport shoes are built on different lasts than dress shoes, with more toe room, wider forefeet, and size curves tuned for socks and swelling. Feet swell during exercise, up to half a size over a long run, which is why running shoes are bought long and why trying them on in the afternoon matters. A dress shoe that fits perfectly at noon is the right size; a running shoe that fits perfectly at noon is too small at mile 20.

Cleats, court shoes, and hiking boots each have their own logic. Soccer cleats fit like a second skin with almost no extra length. Hiking boots want toe room for descents, when the foot slides forward. Basketball shoes want ankle support with a snug midfoot. The conversion chart translates the number; the sport dictates the fit. Never buy technical footwear on the converted number alone.

Common EU Conversion Mistakes

First: ignoring gender. EU 42 is men's US 9 but women's US 10.5. Converting without gender is meaningless, and it is the single most common error. Second: assuming EU sizes are consistent. They are not; brands interpret the scale differently, and the same EU 43 fits differently across makers. The centimeter column is the stable reference.

Third: the half-size gap. EU whole sizes step 2/3 cm with no official halves at most brands, so between-sizes feet must choose up or down with no middle option. Fourth: kids' EU sizes, which follow a different scale with different zero points; never convert children's sizes with the adult chart. Fifth: ordering final-sale shoes from abroad in a converted size without checking the brand's cm chart. The return shipping costs more than the care would have.