Shoe size chart
A 10 inch (254 mm) foot is a US men's 8, a US women's 9 and a UK 7 under the ISO/TS 19407 conversion. Measure your foot to get your size in every system; brands still vary by up to half a size.
Shoe size chart: the tool
Shoe size from foot length
Stand on a sheet of paper against a wall, mark the tip of the longest toe, and measure from the wall to the mark. Measure both feet and use the longer one.
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How to measure
Men's and women's shoe size chart by foot length
| Foot (in) | Foot (mm) | UK | US men | US women |
|---|---|---|---|---|
| 8.33 | 211.6 | 2 | 3 | 4 |
| 8.5 | 215.9 | 2.5 | 3.5 | 4.5 |
| 8.67 | 220.13 | 3 | 4 | 5 |
| 8.83 | 224.36 | 3.5 | 4.5 | 5.5 |
| 9 | 228.6 | 4 | 5 | 6 |
| 9.17 | 232.83 | 4.5 | 5.5 | 6.5 |
| 9.33 | 237.06 | 5 | 6 | 7 |
| 9.5 | 241.3 | 5.5 | 6.5 | 7.5 |
| 9.67 | 245.53 | 6 | 7 | 8 |
| 9.83 | 249.76 | 6.5 | 7.5 | 8.5 |
| 10 | 254 | 7 | 8 | 9 |
| 10.17 | 258.23 | 7.5 | 8.5 | n/a |
| 10.33 | 262.46 | 8 | 9 | 10 |
| 10.5 | 266.7 | 8.5 | 9.5 | n/a |
| 10.67 | 270.93 | 9 | 10 | 11 |
| 10.83 | 275.16 | 9.5 | 10.5 | n/a |
| 11 | 279.4 | 10 | 11 | 12 |
| 11.17 | 283.63 | 10.5 | 11.5 | 12.5 |
| 11.33 | 287.86 | 11 | 12 | 13 |
| 11.5 | 292.1 | 11.5 | 12.5 | 13.5 |
| 11.67 | 296.3 | 12 | 13 | 14 |
| 11.83 | 300.56 | 12.5 | 13.5 | 14.5 |
| 12 | 304.8 | 13 | 14 | 15 |
| 12.17 | 309.03 | 13.5 | 14.5 | 15.5 |
| 12.33 | 313.26 | 14 | 15 | 16 |
| 12.5 | 317.5 | 14.5 | 15.5 | 16.5 |
| 12.67 | 321.73 | 15 | 16 | 17 |
Foot size chart: EU (Paris point) size by foot length in cm
| Foot (mm) | EU |
|---|---|
| 210 | 33.5 |
| 213.3 | 34 |
| 216.6 | 34.5 |
| 220 | 35 |
| 223.3 | 35.5 |
| 226.6 | 36 |
| 230 | 36.5 |
| 233.3 | 37 |
| 236.6 | 37.5 |
| 240 | 38 |
| 243.3 | 38.5 |
| 246.6 | 39 |
| 250 | 39.5 |
| 253.3 | 40 |
| 256.6 | 40.5 |
| 260 | 41 |
| 263.3 | 41.5 |
| 266.6 | 42 |
| 270 | 42.5 |
| 273.3 | 43 |
| 276.6 | 43.5 |
| 280 | 44 |
| 283.3 | 44.5 |
| 286.6 | 45 |
| 290 | 45.5 |
| 293.3 | 46 |
| 296.6 | 46.5 |
| 300 | 47 |
| 303.3 | 47.5 |
| 306.6 | 48 |
| 310 | 48.5 |
| 313.3 | 49 |
| 316.6 | 49.5 |
| 320 | 50 |
How the systems relate
- Brands vary. These are standard or typical conversions, not a guarantee for any one shoe model.
- ISO/TS 19407 conversion (as summarised on Wikipedia) derives adult sizes from foot length plus an allowance of two sizes; it is the basis for the iso tables and formulas below.
Shoe width chart
Width letters run from narrow to wide. A plain D is the standard width for men and a plain B for women, so the same name means a different letter: Brooks lists men's medium as D and women's medium as B.
| Width | Men's | Women's |
|---|---|---|
| Narrow | B | 2A |
| Medium / normal | D | B |
| Wide | 2E | D |
| Extra wide | 4E | 2E |
| Order | Letter | Also written | Note |
|---|---|---|---|
| 1 | AAAA | 4A | narrowest on the Brannock scale (Wikipedia, Brannock Device) |
| 2 | AAA | 3A | |
| 3 | AA | 2A | |
| 4 | A | ||
| 5 | B | standard for women | |
| 6 | C | ||
| 7 | D | standard for men | |
| 8 | E | ||
| 9 | EE | 2E | |
| 10 | EEE | 3E | |
| 11 | EEEE | 4E | widest on the Brannock scale (Wikipedia, Brannock Device) |
Each step between width letters is about 3/16 in (4.8 mm) according to Wikipedia's shoe size article, and the same letter gets a little wider as the length goes up, so a width letter is not a fixed measurement.
For children, see the kids shoe size chart.
Related tools
Questions
What size shoe is a 10 inch foot?
Under the ISO/TS 19407 conversion a 10 in (254 mm) foot is a UK 7, US men's 8 and US women's 9 (FIA scale), and EU 40.5 on the ISO table (the formula gives 40.1, and the table rounds up to the next half size).
How do I convert US men's to women's shoe sizes?
On the industry (FIA) scale women's is men's plus 1. Some brands use plus 1.5 instead (Nike does), so check the brand's own chart.
What is Mondopoint?
The foot length in millimeters (ISO 9407). It is used for ski boots and military footwear because it does not depend on any shoe last.
Why does my size differ between brands?
Sizes are marked on the last (the form the shoe is built on), not the foot, and each brand chooses its own allowance and shape.
Sources
- Wikipedia: Shoe size (checked 2026-10-02)
- The Brannock Device Co.: Size Conversion Chart (scale comparison image) (checked 2026-10-02)
- Wikipedia: Shoe size (Width section) (checked 2026-10-05)
- Wikipedia: Brannock Device (checked 2026-10-05)
- J. S. Gilstrap (amstzone.org): New US Mens Brannock Sizing (checked 2026-10-05)
- Brooks Running (Australia support): Shoe widths explained (checked 2026-10-05)
Last checked: 5 October 2026