A women's shoe size 39 in European sizing generally corresponds to a US women's size 8 to 8.5. For example, according to ASOS and other size charts, EU 39 is about US 8 with a foot length around 24.6 cm (246 mm)

. Other charts also confirm that EU 39 aligns with US 8 to 8.5 in women's shoes

. In UK sizing, EU 39 roughly corresponds to a UK size 6

. To summarize:

• EU 39 ≈ US women's 8 to 8.5
• EU 39 ≈ UK women's 6
• Foot length ≈ 24.6 cm (9.7 inches)

This conversion is consistent across multiple reputable shoe size charts.