CM 31 in EU, UK & CM — Shoe Size Conversion
A CM 31 equals approximately US men's 14.5, US women's 16, and EU 47 (foot length ~310 mm). Sizes vary by brand — use the comparison table below as a fit-data starting point.
Conversion table
| US Men | US Women | EU | UK | CM | Foot (mm) |
|---|---|---|---|---|---|
| 13.5 | 15 | 45 | 12.5 | 30 | 302 |
| 14 | 15.5 | 46 | 13 | 30.5 | 306 |
| 14.5 | 16 | 47 | 13.5 | 31 | 310 |
| 15 | 16.5 | 47 | 14 | 31.5 | 314 |
| 15.5 | 17 | 48 | 14.5 | 32 | 318 |
Conversions route through foot length (mm). See how we calculate for the full methodology.
Find your brand fit
No brand-specific fit data is anchored at this exact foot length yet. Browse our brand guides — Nike runs small, New Balance runs large — for a purchase-ready answer with confidence scores and sources.