Men's Shoes Size Chart

One foot, six labels, four separate measuring traditions

This chart lines up men's shoe sizing across US, UK, EU, Japanese, Korean, and Australian conventions, and — as with the women's version of this chart — none of these six columns share a common unit underneath. US and UK sizing both derive from the English barleycorn (a third of an inch); EU sizing derives from the French Paris point (two-thirds of a centimetre); Japan and Korea state foot length directly, in centimetres and millimetres; and Australian sizing sits in an unusually unsettled position, historically following the UK convention but increasingly drifting toward a near-1:1 match with US sizing depending on the specific retailer.

Men's US-to-UK sizing and women's US-to-UK sizing use two genuinely different historical offsets rather than one shared rule, since the two scales were anchored to different reference lasts by gender — the specific gap, and exactly where it holds most consistently across the size range, is covered on this site's dedicated US-to-UK men's shoe conversion page rather than repeated at chart altitude here.

Dress shoes and athletic shoes convert differently within the same brand

Men's footwear splits more sharply by category than women's does: a dress shoe and a sneaker from the identical brand are frequently built on different lasts, updated on different cycles. Athletic lasts get revised more often against contemporary, generally wider foot-shape research; dress lasts, especially at heritage or traditional brands, sometimes carry over older, narrower European block proportions largely unchanged for years. A size that converts correctly for one category from a given brand isn't automatically correct for the other.

Width sizing is more standardized for men's dress shoes than for almost any other category on this site

American and British dress shoes commonly offer a labeled width alongside the length — C or D standard, E and EE wide in the US, F/G/H fittings in British tradition — a level of standardization that women's shoes, EU shoes generally, and most other garment categories on this site simply don't have. Continental European dress shoemakers, by contrast, typically build one width per size rather than offering a separate wide option at all, which is the main reason a wide-footed shopper converting into a European brand needs to size up in length rather than hunting for a width letter that doesn't exist.

Japan's business-shoe culture pushed sizing precision further than casual footwear needed to go

Japanese corporate dress culture has long expected formal leather shoes worn through very long working days, and that expectation shaped Japanese business-shoe manufacturing toward finer width grading (extending to EEE and beyond on some brands) and more precise centimetre sizing than mainstream Western dress-shoe retail typically offers. A Western shopper converting into a Japanese business shoe for the first time may find more precision available than they're used to navigating, which is a genuine upside once you know to look for the width grade specifically.

Australia doesn't have one settled convention at all

Unlike the other five systems, Australian men's shoe sizing genuinely splits in two: heritage domestic brands and workwear/safety-boot manufacturers still commonly follow the older UK-style offset, while retailers of imported American and international athletic brands increasingly size close to the US number directly, sometimes displaying it outright rather than converting at all. There's no way to know which convention a specific Australian product follows without checking that product's own chart — assuming either default is the most common mistake converting into or out of Australian sizing.

What this chart is, and isn't

It's a standard, cross-checked published relationship between six systems for an average men's last — reliable enough to shop from with confidence for casual and athletic footwear, where lasts across brands have converged considerably. It's less precise for dress shoes specifically, where individual houses' block shapes and drop conventions vary more, and it says nothing about width, which needs checking against the specific brand separately.

Boots follow a different fit assumption than low shoes

A boot last is built around a thicker sock and a bulkier ankle than a low dress or casual shoe, which shifts the practical fit away from this chart's general numbers by more than the length conversion alone suggests — treat any boot purchase as its own category with its own chart to check, regardless of which two regional systems you're converting between.

Resale and secondhand purchases add another layer of uncertainty

A pair of shoes bought secondhand, especially an older pair, may have been produced against a last the brand has since revised, meaning its actual fit can diverge from what the current version of the identically converted size would offer — worth factoring in if you're relying on this chart for a vintage or resale purchase rather than new stock.

Orthotics and insoles change the effective size needed

Someone who wears a custom orthotic or a thicker aftermarket insole often needs a half size larger than this chart's standard conversion would suggest, since the orthotic itself takes up internal volume the chart's numbers don't account for — worth sizing up rather than converting straight from a foot measurement taken without the insert in place.

Sock thickness is a small but real variable

A thick winter sock and a thin dress sock take up meaningfully different volume inside a shoe, so someone who tries a size with a thin sock and buys for year-round wear can find the fit noticeably different once heavier socks come into play each winter — worth trying a shoe with whatever sock thickness you'll actually wear it with, rather than whatever happens to be on hand at the time of trying it.

Minimalist and "barefoot-style" shoes run on an entirely different last philosophy

A barefoot-style or minimalist shoe is built on a foot-shaped last with a notably wider toe box and little to no heel-to-toe drop, compared with a traditional last's tapered, structured shape at the identical labelled size — someone converting from a standard dress or athletic shoe size into this category should expect the numeric size to translate, but the fit through the forefoot to feel unfamiliarly roomy by design, not incorrectly sized.

Shoe trees and proper storage help a leather shoe hold its converted size over time

A leather dress shoe left balled up or stored without support gradually loses the shape it was built to and can develop creasing that changes how it sits on the foot even at an unchanged size, while a cedar shoe tree inserted after each wear helps the leather dry evenly and hold its original last shape — a detail that matters more for keeping a correctly converted size correct over the shoe's lifespan than for the initial purchase decision.

Online-exclusive sizes sometimes aren't stocked in a retailer's physical stores

A retailer with both physical stores and an online catalogue sometimes carries a wider range of half sizes online than any single store location stocks on its shelves, since online inventory draws from a central warehouse rather than a single store's limited shelf space — worth checking online availability specifically before assuming an in-store visit is the only way to find a less common half size.