A US women’s 9 is a US men’s 7.5 in most unisex sizing (Nike, Adidas, Converse, Vans use roughly a 1.5-size gap; some brands use 1 or 2). Men’s 7.5 is UK 6.5, EU 40.5, about 25 cm foot length.
| US | UK | EU | Foot (cm) | |
|---|---|---|---|---|
| Women’s | 9 | 6.5 | 40.5 | 25.4 |
| Men’s | 7.5 | 6.5 | 40.5 | 25 |
Converse Chuck Taylors are a notable exception — they are labeled in men’s sizes and run about half a size large, so many women go 2 sizes down from their women’s size. When in doubt, compare foot length in cm with the brand chart. See the full women’s shoe size chart and how to measure your feet.