EU 36-37 (fits 35-36 feet): US Women's 4.5-6 EU 38-39 (fits 37-38 feet): US Women's 6.5-7.5; US Men's 5-6 EU 40-41 (fits 39-40 feet): US Women's 8-9; US Men's 6.5-7.5 EU 42-43 (fits 41-42 feet): US Women's 9.5-10.5; US Men's 8-8.5 EU 44-45 (fits 43-44 feet): US Women's 11-12.5; US Men's 9-11 EU 46-47 (fits 45-46 feet): US Men's 11.5-12.5 EU 22 (14 cm): US Toddlers' 6-6.5 (5.3 inches) EU 23-24 (15 cm): US Toddlers' 7-7.5 (5.7 inches) EU 25-26 (16 cm): US Toddlers' 8-8.5 (6.1 inches) EU 27 (17 cm): US Toddlers' 9-9.5 (6.5 inches) EU 28-29 (18 cm): US Toddlers' 10-10.5 (6.9 inches) EU 30 (19 cm): US Kids' 11-11.5 (7.3 inches) EU 31-32 (20 cm): US Kids' 12-12.5 (7.7 inches) EU 33 (21 cm): US Kids' 13-1 (8 inches) EU 34-35 (22 cm): US Kids' 1.5-2.5 (8.5 inches)