Men's to Women's US Shoe Size Conversion
Men's US 9 equals women's US 10.5 for the same foot length. The +1.5 offset is a convention, not a physical difference — it exists because women's sizing scales were historically offset from men's barleycorn charts.
Try the conversion
| Foot length (mm) | US Men | US Women | UK | EU | CM |
|---|---|---|---|---|---|
| 237 | 6 | 7.5 | 5 | 36 | 23.5 |
| 246 | 7 | 8.5 | 6 | 37 | 24.5 |
| 254 | 8 | 9.5 | 7 | 38 | 25.5 |
| 262 | 9 | 10.5 | 8 | 39 | 26 |
| 271 | 10 | 11.5 | 9 | 41 | 27 |
| 279 | 11 | 12.5 | 10 | 42 | 28 |
| 288 | 12 | 13.5 | 11 | 43 | 29 |
| 296 | 13 | 14.5 | 12 | 44 | 29.5 |
Quick conversion table
| US Men | US Women | Foot (mm) |
|---|---|---|
| 6 | 7.5 | 237 |
| 7 | 8.5 | 246 |
| 8 | 9.5 | 254 |
| 9 | 10.5 | 262 |
| 10 | 11.5 | 271 |
| 11 | 12.5 | 279 |
| 12 | 13.5 | 288 |
| 13 | 14.5 | 296 |
Formula (Layer A): US women's ≈ US men's + 1.5. See how we calculate for the full methodology.
How to read this conversion
The anchor row converts US Men 9 to 262mm first, then displays it as US Women 10.5. That millimetre anchor is why the same size can be compared against brand and model fit without re-entering the number.
- Foot length in millimetres is the pivot; brand fit is applied later on brand and model pages.
- US men's labels use the barleycorn formula, then round to the nearest half size.
- US women's labels are 1.5 sizes above US men's at the same foot length.
Save this conversion as your size passport
Save your foot length once, then compare brand and model sizing without retyping it.
Local-only by default. Share links include foot length, width and note in the URL, so use them only with people you trust.
What is men's US 9 in women's?
Men's US 9 equals women's US 10.5 for the same foot length — add 1.5 to convert men's to women's US.
Brand-specific sizing (Layer B)
Generic charts ignore fit — Nike runs small, New Balance runs large, Converse runs very small. For a purchase-ready answer with confidence score and sources:
Compare brand fit before buying
Length conversion gets you the starting size. Brand fit can still move the label by a half size.
Reverse conversion
Need the other direction? Use Women's to Men's US Shoe Size Conversion.