Practical guide · Sizes and conversions

Size converter: shoes and clothing

The conversion between European, British and American sizes is the main cause of returns for online purchases, and not because people get the calculations wrong: because the tables do not match from one brand to another. Here you will find general conversions and, below, the guides for individual brands, which are what really matter when ordering.

The rule that resolves 90% of doubts. The only reliable measurement is foot length in centimetres. Measure it while standing, from heel to toe, at the end of the day - the foot is about half a size larger in the evening. Then find that value in the cm column: it is the only one that does not change from brand to brand.

Women's shoe sizes: EU, UK, US and centimetres

Approximate conversion. Centimetres are the reliable reference.

EU UK US cm
35 2,5 5 22,0
36 3,5 6 22,5
37 4 6,5 23,5
38 5 7,5 24,0
39 6 8,5 25,0
40 6,5 9 25,5
41 7,5 10 26,5
42 8 10,5 27,0

Men's shoe sizes: EU, UK, US and centimetres

Approximate conversion. Centimetres are the reliable reference.

EU UK US cm
39 6 6,5 24,5
40 6,5 7 25,0
41 7,5 8 26,0
42 8 8,5 26,5
43 9 9,5 27,5
44 9,5 10 28,0
45 10,5 11 29,0
46 11 11,5 29,5
47 12 12,5 30,5

The questions we receive most often

What is a size 45 in US sizing? A men's EU 45 corresponds to approximately a US 11 (UK 10.5), which means a foot approximately 29 centimetres long.

And what about size 8? It depends on the system, and it is the most ambiguous question of all. A men's UK 8 is an EU 42; a men's US 8 is an EU 41; a women's US 8 is an EU 38-39. If the number comes from an American website with no other indication, it is almost always US.

Why do some brands skip sizes? Because they produce on a UK scale, and the European conversion is not linear. Dr. Martens is the best-known example: the labels go from 39 to 41, and size 40 does not exist. It is not a printing error.

Women's clothing sizes: from letter to number

Size IT EU UK US
XS 38-40 34-36 6-8 2-4
S 40-42 36-38 8-10 4-6
M 42-44 38-40 10-12 6-8
L 44-46 40-42 12-14 8-10
XL 46-48 42-44 14-16 10-12
XXL 48-50 44-46 16-18 12-14

What does a women's size L correspond to? An Italian 44-46 (European 40-42, UK 14-16, US 10-12). There is some variation because Italian brands tend to make L correspond to 46, while international brands tend to make it correspond to 44: the same letter can vary by a full size.

Men's clothing sizes

Size IT UK US
XS 44 34 34
S 46 36 36
M 48 38 38
L 50 40 40
XL 52 42 42
XXL 54 44 44

The brand-specific guides, which are the ones that matter

The tables above are intended as a general guide. When ordering, the brand's sizing is what matters, and it is often different: that's why we keep a guide for each of the brands we receive the most questions about.

If you are still unsure. Send us your foot length in centimetres and the model you are interested in: we will tell you which size to ship. That is the advantage of buying from a boutique with its own stock on site - we can actually measure the shoe.

Frequently asked questions

What is a size 45 in US sizing?

A men's European size 45 corresponds to approximately a US 11 (UK 10.5), which is equivalent to a foot of about 29 centimetres. Conversions remain indicative: the individual brand's sizing scale may shift the match by half a size.

How are shoes measured in centimetres?

Standing up, place your heel against a wall and measure to the tip of your big toe. Do this at the end of the day, when your foot is at its fullest, and use the longer of your two feet: a difference between right and left is normal.

What European size does size 8 correspond to?

It depends on the system. A men's UK 8 is an EU 42; a men's US 8 is an EU 41; a women's US 8 is an EU 38-39. If the number comes from an American website with no other indication, it is almost always the US scale.

What does a women's size L correspond to?

An Italian women's L corresponds to 44-46, that is, European 40-42, UK 14-16, US 10-12. The range exists because Italian brands often place L at 46, while international brands place it at 44.

Why don't size conversions match across websites?

Because there is no mandatory standard: each brand builds its sizing scale around the last it uses. That is why the safest reference remains foot length in centimetres, and why it is always best to check the specific brand's size guide.

If I am between two sizes, which one should I choose?

There is no one-size-fits-all rule: it depends on the model. With a lace-up shoe, you can size up, because the laces allow for adjustment; with a loafer or slip-on, sizing up means ending up with a heel that slips. When in doubt, it is best to ask before ordering.

Vittorio Citro Boutique, Roccapiemonte. Authorized retailer of over 200 brands since 1917.