Europe Size 38.5 to US: 9
Cross-market women’s shoes, heels, boots, flats, and sneakers conversion mapping 38.5 specifications into 9.

Analyzing Footwear Size Equivalence Across Markets
Europe Size 38.5: Features a foot length of 24.4 (9.6 ), ball width of 9.1 (3.58 ), heel height of 8.5 (3.35 ), and Medium Arch support optimized for women’s footwear.
US: 9: Features a foot length of 25.4 (10 ), ball width of 9.4 (3.7 ), and heel height of 9 (3.54 ), and Universal Arch support optimized for women’s footwear.