Guide · 6 min read

Shoe width
chart

Length picks your size; width decides whether the shoe is comfortable. Here’s how to measure it, and what all those letters mean.

The short answer

Measure across the widest part of your foot (the ball), standing. In US sizes, D is the standard width for men and B for women; letters further along the alphabet are wider (E, 2E, 4E) and earlier ones narrower.

standard width, US men’s
D
standard width, US women’s
B
3/16 in between letters on Brannock’s scale
4.8mm

Shoe width chart by size

Width letters scale with length, so the chart goes size by size. New Balance prints the foot width each of its fittings is for, across the ball of the foot, for every men’s and women’s size, and Birkenstock for children’s; these are their figures. Find your length, then the column nearest your own width.

Men’s widths (New Balance)

Foot width across the ball, mm
US men’sFoot cmB narrowD standard2E wide4E x-wide
624.09397101104
6.524.59598102105
725.09699103106
7.525.597100104107
826.098101105108
8.526.599102106109
927.0100104107110
9.527.5101105108111
1028.0102106109113
10.528.5103107110114
1129.0104108111115
11.529.5105109113116
1230.0106110114117
12.530.5107111115118
1331.0108112116119
13.531.5109113117120
1432.0110114118121
1533.0113116120123
1634.0115118122125

From New Balance size chart, checked 2026-10-21.

Women’s widths (New Balance)

Foot width across the ball, mm
US women’sFoot cm2A narrowB standardD wide2E x-wide
522.078818588
5.522.579838689
623.080848790
6.523.581858892
724.082868993
7.524.583879094
825.084889295
8.525.585899396
926.086909497
9.526.587919598
1027.088929699
10.527.5899397100
1128.0909498101
11.528.5929599102
1229.09396100103
12.529.59497101104
1330.09598102105

From New Balance size chart, checked 2026-10-21.

Kids’ widths (Birkenstock)

Foot width across the ball, mm
EU sizeFoot cmNarrowRegular
2415.059–6263–67
2516.061–6465–69
2616.563–6667–71
2717.065–6869–73
2818.067–7071–75
2918.569–7273–77
3019.071–7475–79
3120.073–7677–81
3220.575–7879–83
3321.077–8081–85
3422.079–8283–87
3522.581–8485–89
3623.083–8687–91
3724.084–8990–98
3824.586–9192–100
3925.088–9394–102

From Birkenstock size chart, checked 2026-10-21; Birkenstock’s chart is for its sandals, and gives a range for each fitting.

What each letter means

  • BMen’s narrow: 100 mm across the ball for a men’s US 9, 4 mm narrower than standard.
  • DMen’s standard: 104 mm across the ball for a men’s US 9, the standard width.
  • 2EMen’s wide: 107 mm across the ball for a men’s US 9, 3 mm wider than standard.
  • 4EMen’s x-wide: 110 mm across the ball for a men’s US 9, 6 mm wider than standard.
  • 2AWomen’s narrow: 84 mm across the ball for a women’s US 8, 4 mm narrower than standard.
  • BWomen’s standard: 88 mm across the ball for a women’s US 8, the standard width.
  • DWomen’s wide: 92 mm across the ball for a women’s US 8, 4 mm wider than standard.
  • 2EWomen’s x-wide: 95 mm across the ball for a women’s US 8, 7 mm wider than standard.

New Balance’s is the one brand chart we have with foot widths for four letters at every size; other brands’ widths differ. The letter scales below cover every system.

Why width matters

Two feet the same length can be very different widths, and a shoe that’s long enough can still pinch. If your shoes fit lengthwise but you get any of these, width is the problem, not size:

  • pressure or rubbing along the sides, especially at the little toe or the big-toe joint;
  • the upper bulging over the sole, or laces that won’t meet in the middle;
  • numbness or tingling in the toes after an hour or two;
  • you’ve been buying a size up “for comfort”, and your heel now slips.

Measure your width

  1. Step 01

    Stand on the paper

    Same set-up as for length: paper on a hard floor, heel to the wall, weight on the foot, in your usual socks.

  2. Step 02

    Mark both sides of the ball

    With the pen upright, mark the widest point on each side, usually across the ball of the foot behind the toes.

  3. Step 03

    Measure across

    Step off and measure straight across between the two marks, at right angles to the foot’s length.

  4. Step 04

    Or measure around (girth)

    Some charts, including Japan’s, use girth: a soft tape around the ball of the foot, snug but not tight.

WALLWIDTH
Width is measured across the ball of the foot, the widest part, at right angles to the length.

Width letters explained

In US sizing, the letters run from narrow to wide: 4A, 3A (AAA), 2A (AA), A, B, C, D, E, 2E (EE), 3E (EEE), 4E (EEEE), 5E, 6E. On Brannock’s scale each letter is 3/16 in (4.8 mm) of foot width from the next. Brands set their own fittings: New Balance’s are 3–4 mm apart, two letters at a time (men’s B, D, 2E, 4E). Shoes without a width on the label are the standard width: D for men, B for women.

  1. 4A
  2. 3A
  3. 2A
  4. A
  5. B
  6. C
  7. D
  8. E
  9. 2E
  10. 3E
  11. 4E
  12. 5E
  13. 6E
NarrowerUS men’s · D standardWider
  • 2E is the same as EE, 3E as EEE, and so on: a number in front counts the letters.
  • E and 2E are different: E is one step wider than D, 2E two steps.
  • Brands often label widths in words instead: narrow, regular or medium, wide, extra wide. On their charts, “wide” for men is usually 2E and for women D.

Every width scale

Different systems use different letters for the same idea. Steps count letters from each scale’s standard width.

US men’s: D is standard
LetterAlso writtenStepFit
4A—-6Extra narrow
3AAAA-5Extra narrow
2AAA-4Extra narrow
A—-3Extra narrow
B—-2Narrow
C—-1Medium-narrow
D—0Standard
E—+1Medium-wide
2EEE+2Wide
3EEEE+3Extra wide
4EEEEE+4Extra wide
5E—+5Extra wide
6E—+6Extra wide
US women’s: B is standard
LetterAlso writtenStepFit
4A—-4Extra narrow
3AAAA-3Extra narrow
2AAA-2Extra narrow
A—-1Narrow
B—0Standard
C—+1Medium-wide
D—+2Wide
E—+3Extra wide
2EEE+4Extra wide
3EEEE+5Extra wide
4EEEEE+6Extra wide
5E—+7Extra wide
6E—+8Extra wide
UK fittings: F is usually standard
LetterAlso writtenStepFit
C—-3Narrower
D—-2Narrower
E—-1Narrower
F—0Usually standard
G—+1Wider
H—+2Wider
US kids: M is standard
LetterAlso writtenStepFit
MB0Standard (medium)
WD+1Wide
EW2E+2Extra wide

Japan uses girth letters, A, B, C, D, E, EE, EEE, EEEE, F, G, from narrow to wide, indexed by foot length in JIS S 5037. Widths vary by manufacturer; brand charts give the exact figures.

Men’s and women’s widths

The same letter doesn’t mean the same fit in men’s and women’s shoes. Women’s standard is B; men’s is D, which on the women’s scale is 2 steps wider than standard. So a women’s D is a wide fit, and a men’s B a narrow one.

Women’s

B → D

Standard to wide. Women with wider feet often find men’s or unisex shoes fit well. Convert your size.

Men’s

D → B

Standard to narrow. Men with narrow feet can try women’s shoes in the converted size, which are cut narrower.

Finding a wide fit

  • Look for the letter or the word. 2E or 4E for men, D or 2E for women, “wide” or “W” on many brands, W or EW for kids.
  • Check the brand’s own chart. Some brands give a width in millimetres for each size and width, so you can match your measurement.
  • Mind the toe box. A rounded or square toe gives more room than a pointed one in the same width.
  • Lace for width. Skipping the eyelets over the widest part, or lacing more loosely there, relieves pressure.
  • Measure later in the day. Feet are at their largest in the afternoon (Royal Devon NHS).

Brands that publish widths

These brands give width information on their own charts (as of 2026-10-23). Their pages show the charts we use, linked to the source:

Questions

What does 2E mean on a shoe?

2E (also written EE) is two width letters wider than the men’s standard D: a wide fit for men. For women, 2E is extra wide.

Is E the same as 2E?

No. In the US letters, E is one step wider than D, and 2E two steps. Some brands label their single wide option “E”, so check the brand’s chart.

What width is a standard shoe if no letter is shown?

D for men and B for women. Kids’ shoes without a letter are M (medium).

Do UK and US width letters match?

No. UK fittings use their own letters, with F usually standard, and they vary by maker. Use the brand’s chart, or measure.

My feet are different widths. What should I do?

Fit the wider foot, then take up the slack on the narrower one with lacing or a thin insole.