Europe Size 37.5 to US: 5
Cross-market women’s shoes, heels, boots, flats, and sneakers conversion mapping 37.5 specifications into 5.

Analyzing Footwear Size Equivalence Across Markets
Europe Size 37.5: Features a foot length of 23.5 (9.25 ), ball width of 8.8 (3.46 ), heel height of 7.5 (3 ), and Medium-to-High Arch support optimized for women’s footwear.
US: 5: Features a foot length of 21.9 (8.6 ), ball width of 8.2 (3.2 ), and heel height of 5 (2 ), and Medium Arch support optimized for women’s footwear.