A women's shoe size 40 in European sizing generally corresponds to a US women's size 9 to 9.5
. More specifically:
- According to several size charts, EU 40 is about US 9 or 9.5 in women's shoes
- UK size for EU 40 is typically around 6.5 to 7
- The foot length for EU 40 is approximately 25.1 to 26 cm depending on the brand
In summary, a women's EU size 40 is roughly equivalent to a US size 9-9.5 and a UK size 6.5-7.