Shoe Width Chart: What B, D, 2E and 4E Mean for Men and Women

The letter after a shoe size is its width. In men's shoes, D is standard, B is narrow, 2E (also written EE) is wide and 4E is extra wide. In women's shoes the scale shifts: B is standard, 2A is narrow, D is wide and 2E is extra wide. So a men's 10D and a women's 8B are both regular-width shoes.

That shift is the source of most width confusion, and it is only the start. Width letters are categories, not fixed measurements, and brands apply them differently. This guide gives you the charts, then explains how to read them and when a wide shoe is actually the answer.

Shoe width chart for men and women

These are the width codes you will see most often on US sizing. Not every shoe comes in every width; many sneakers are made in standard only, and wide versions are more common in running, walking and work shoes.

Same letter, two meanings

Because men's and women's scales start from different standards, the same letter can describe a different fit depending on which side of the store you are in.

The practical takeaway: never read a width letter on its own. Check whether the listing uses men's or women's sizing first, then look the letter up in the right column.

How to read a size label

A size like US 10 2E is two separate pieces of information. The number is length. The letter is width at the ball of the foot. Changing the letter keeps the length the same and adds or removes room across the forefoot.

• More letters, more extreme. On the narrow side, AA is narrower than A and AAA narrower still. On the wide side, E, EE, EEE and EEEE get progressively wider.
• EE and 2E are identical. So are EEEE and 4E. Brands simply count the letters.
• Word labels are common too. N means narrow, M or R means medium or regular, W means wide and XW means extra wide. A men's W is usually 2E, while a women's W is usually D, so the same caveat applies.
• No letter usually means standard. Most brands only print a width when the shoe is not their regular fit. A men's shoe labeled just "10" is normally a D; a women's "8" is normally a B.

Intermediate letters such as C and a single E exist in the traditional system but are uncommon in sneakers. Most athletic brands jump straight from D to 2E in men's sizing.

Why a width letter is not a measurement

It is tempting to treat D as "this many millimeters wide." It does not work that way, for three reasons.

First, width scales with length. A men's 8D and a men's 12D are both standard width, but the 12 is physically wider because the whole shoe is bigger. Brands that publish measurement tables show the gap between standard and wide growing as sizes go up.

Second, the step between widths is small. Depending on the brand and size, going from standard to wide typically adds somewhere between a few millimeters and about a centimeter at the forefoot. That is enough to relieve pressure on the little toe, not enough to turn a cramped shoe into a roomy one.

Third, brands add room in different places. Some widen the sole platform, some only add material to the upper, and some do both. Two shoes labeled 2E can feel quite different on the same foot.

Signs you need a wider shoe

One tight pair proves nothing; some lasts are simply narrow. A pattern across several brands is what counts. Look for these:

• The length is right, with toe room in front, but the sides press on the ball of your foot.
• Your little toe gets pushed inward or rubs the upper, even in shoes that are long enough.
• Standing barefoot on the removed insole, your forefoot spills over its edges.
• You have gotten used to buying half a size up just to make shoes bearable.
• You see red marks or calluses along the outer edge of your forefoot after a day's wear.

If two or more of these sound familiar, measure your width. Our step-by-step guide on how to measure your feet at home covers both length and width with a sheet of paper and a ruler. Measure across the widest part of the tracing, just behind the toes, and compare it with your length: the same width can be standard for a long foot and wide for a short one.

Wider or bigger? Usually wider

When a shoe pinches across the forefoot, the reflex is to go up half a size. It sort of works: a longer shoe is also slightly wider. But you pay for that width with extra length you do not need. The ball of your foot ends up behind the shoe's flex point, the heel can slip, and the toe box flaps in front of your toes.

If the length fits and only the width is wrong, order the same length in the next width up. Size up only when the shoe has no wide option, and then expect to fine-tune with lacing or a thicker insole to keep your heel secure.

Width, toe box shape and volume are different things

Not every "too tight" feeling is a width problem. Before you switch to a wide shoe, find out where the pressure is.

Toe box shape

A standard-width shoe with a rounded, anatomical toe box can feel roomier than a wide shoe with a tapered point. If only your toes feel squeezed and the ball of your foot is fine, look for a rounder toe shape rather than a wider size.

Volume and instep

Pressure across the top of the foot, under the laces, is usually about volume: a high instep or a thick foot, not a broad one. A wide shoe might help a little, but a model with a softer tongue, more depth, or simply looser lacing over the instep often works better.

Wide forefoot, narrow heel

Plenty of feet are broad at the ball and slim at the heel. For them, a fully wide shoe can fix the forefoot and create heel slip. Shoes with a roomy toe box on a standard heel are often the better match, and runner's loop lacing helps keep the heel locked.

Women in men's shoes, men in women's shoes

Crossing over is a legitimate width trick. A women's foot that needs extra room can try the men's version of a unisex model, because a men's standard D is roughly a women's wide. A man with narrow feet can sometimes find a better fit in the women's version.

You have to convert length at the same time. The usual rule is that a women's US size is about one and a half sizes larger than the men's size, so a women's 9 is roughly a men's 7.5. Brand charts do not all agree to the half size, so match foot length in centimeters on our shoe size conversion chart rather than trusting the rule blindly.

Which brands run wide or narrow

General tendencies, based on how the main models are built and what most wearers report:

• New Balance offers the widest range of widths of any mainstream sneaker brand, with many running and walking models in narrow through extra wide. Its lifestyle models, like the 550, are usually offered in standard width only. See our New Balance sizing guide.
• ASICS, Brooks and Hoka make many running shoes in 2E and 4E for men and D for women. Their retro lifestyle lines mostly come in standard width.
• Nike offers wide versions of some running and basketball shoes, but many models are only made in standard width, and several run narrow, especially sleek running silhouettes and some Air Max models. The Air Force 1 is a roomy exception.
• Adidas terrace shoes like the Samba and Gazelle are slim through the forefoot, while knit running models stretch to fit more foot shapes.
• Foot-shaped brands such as Altra build anatomical toe boxes that give toes room to spread even in standard width.

Comparing two brands for a specific foot? Our brand size comparison tool shows how lengths line up so you can focus on width separately.

A quick way to choose your width

1. Get your length right first. Width only makes sense once the size number is correct.
2. Start with standard width in the brand you are buying.
3. If the length is right but the forefoot presses, try the same length one width up.
4. If both standard and wide feel possible, pick the one where your heel stays put.
5. If a model has no wide option and fits tightly, pick a different model rather than forcing a longer size.

Most people never need anything but standard width. The ones who do usually know it already: shoes that always feel fine in length and never feel fine across the foot. For them, the right letter matters more than the right number.