Italian Shoe Size to US: Conversion Chart and Fit Notes

Italian shoe sizes follow the European scale, so on the standard chart a men's US 9 is about an Italian 42 or 42.5, and a women's US 8 is about a 39. That is the starting point. The catch is that Italian luxury labels do not all agree, so the same number can mean different feet at different houses.

This guide gives you the conversion, explains where it breaks, and shows how to order Italian shoes online without a return. If you only remember one thing, remember this: check the brand's own foot-length chart, and treat any converted size as a first guess.

The basic conversion

An Italian size is an EU size counted in Paris points, each two-thirds of a centimeter (see our US to EU guide for the arithmetic). Italian makers use whole and half numbers, so a conversion from a US size lands on a whole or half Italian number. The tables below are the standard chart: men's first, then women's.

The EU column is what you will see as the Italian size on most labels. Read the Foot length column to confirm that the row matches your foot, and ignore the CM (JP) column unless the brand prints one.

Why you cannot always trust the table

Different published charts give a slightly different answer for the same Italian size. A men's Italian 42 is shown by some general charts as US 8.5 to 9, and our standard chart puts EU 42 at US 8.5 and EU 42.5 at US 9. For women, one common table puts Italian 39 at US 8.5 to 9, while ours puts EU 39 at a women's US 8. These are all within a half size, but half a size is exactly the margin that decides whether a leather loafer fits.

Sources also disagree on the plain facts, because no body sets one Italian standard. Treat any single conversion as an average and not a rule.

Brands that follow their own numbers

Several famous Italian houses use their own conversions. Published brand charts show, for example, that the same Italian 42 maps to a different US size at different luxury labels, a gap of half a size between two well-known houses. Some brands print a house number that does not match the EU number at all: one widely cited chart lists an Italian 42 as a "Prada 8" and a US 9 on the same row.

The practical lesson is to look for a foot-length column. When two brands list slightly different foot lengths for the same Italian number, as at least one designer does between its formal shoes and its sneakers, the foot length is the thing to trust. If a brand publishes no foot length, use its official Italian to US table, not a general converter.

Dress shoes versus sneakers

Italian leather dress shoes are built on lasts that can be narrower and more pointed than a US sneaker. The same Italian size can feel snug in a loafer and generous in a canvas sneaker from the same maker. In general, many wearers choose a half size larger in a slim dress shoe than in the matching sneaker. That is a common experience, not a rule, so look for the brand's notes on fit.

Leather also behaves differently from knit. A calfskin shoe loosens at the vamp over weeks of wear, but a lined or patent shoe barely moves. If a pair is tight in length at the shop, do not count on the leather to fix it.

Half sizes

Not every Italian maker offers half sizes. Some sneaker lines sell whole Italian numbers only, while some leather makers offer them through most of the range. If you are on a half size and the line is whole-only, the choice depends on what you are buying:

• Lace-ups and sneakers: go up. You can lace tighter and add a thin insole.
• Slip-ons and loafers: go down only if the heel feels loose in your usual size. If the foot slides, the shoe is simply too long.
• Boots: go up, since thick socks and swelling reduce room. Our boot fit guide has the details.

Width on Italian lasts

Most Italian designer shoes are sold in one width, often a medium that feels narrower than an American D. Some Italian makers cut a wider last for specific models, and the product page may note it. If your forefoot is wide, a longer size will not fix the pinch across the ball. Check the shoe width chart to see how your width compares and look for a wide model, not a bigger number.

How to order Italian shoes online

1. Measure your longer foot in centimeters. Our measuring guide covers the paper method.
2. Open the brand's size chart and find the foot length closest to yours, rounding up.
3. If there is no foot-length column, read the brand's own IT to US table, not a general one.
4. Read the fit notes and customer comments for "runs small", "runs large" or "narrow".
5. Check the return policy, particularly for sale items and unworn requirements.

When you buy leather, try the shoes on a carpet and keep the soles clean until you are sure. Many luxury retailers refuse returns on shoes with scuffed soles.

Using your Italian size to shop other brands

If you already own a pair that fits, the easiest route is to read the Italian size on its insole and look up the foot length on that brand's chart. Then compare that number with the row on any other chart, for example the one in our conversion chart. This beats guessing from the number alone, because you are comparing feet and not labels.

A men's Italian 42.5 and a US 9 share the 26.2 cm row on our chart, and a women's Italian 39 and a US 8 share the 24.1 cm row. Those are the fixed points to carry between systems, with a possible half size of drift from any one brand.

Italian size versus French, German and UK numbers

Italian and French sizes sit on the same Paris-point scale, so an Italian 42 and a French 42 describe a similar shoe length on paper. UK sizes are a different number line entirely, so a men's Italian 42.5 is a UK 8 on our chart. If a European retailer lists both an Italian and a UK size, compare both against the table above. When they do not line up, the retailer has used its own conversion, and you should follow its foot-length column if it has one.

Three common situations

You wear a US 9 in Nike and want Italian loafers. Start from the Italian 42.5 row, and then check the foot length. A Nike US 9 and a 26.2 cm foot share the same row, so your starting point is solid. Because loafers are slim and unlined versions stretch little, many buyers in this position choose 43 if the maker offers it, and then add a heel grip if the heel slips.

You are between two Italian sizes in a sneaker. Take the larger and lace carefully. A thin sneaker insole can fill extra volume, while nothing fills a shoe that is too short.

You are buying a gift. Ask for the recipient's size in a shoe they already own, and look for the foot length at that brand. If they do not know, a men's US 9 and a women's US 8 are the most common middle sizes on our chart, but a guess still has a real chance of missing, so buy with a gift receipt.

What to do when the shoe arrives

Try the shoes on in the evening, with the socks you plan to wear. Stand up and check three points: the toe should clear the end by about a thumb's width in a sneaker, or a little less in a dress shoe, the heel should hold with only slight lift, and the ball of your foot should sit on the widest part of the shoe. Walk on a soft surface and do not scuff the soles. Dress shoes should feel snug but not painful on day one, as leather relaxes a little with wear.

If the shoe is long but fits at the ball, an insole or heel grip can sometimes rescue it. If the shoe pinches at the ball or the toes touch the front, send it back, because no pad can add length or width.

Do not rely on a size alone

A converted size is a label, and a label is not a foot. Two shoes marked Italian 42 can differ in length by several millimeters, differ more in volume, and differ again in how the toe box is shaped. That is why the foot-length column and the return policy matter more than any table. Use this page to narrow your choice to one or two sizes, then let the shoe and the retailer's policy decide between them.

Bottom line

Italian sizes are European sizes. Convert with the standard table for a first answer, then confirm with the brand's foot-length chart, and go for the longer size on slim leather lasts. For a second opinion on a specific number, use our shoe size calculator.