EU 24-25 (15 cm): US Toddlers' 7-8 (5.9 inches) EU 26-27 (16 cm): US Toddlers' 8.5-9 (6.3 inches) EU 28-29 (17 cm): US Toddlers' 9.5-10 (6.7 inches) EU 30-31 (18 cm): US Kids's 10.5-11.5 (7.1 inches) EU 32-33 (19 cm): US Kids' 12-13 (7.5 inches) EU 35-36: US Women's 4.5-5.5 EU 36-37: US Women's 5-6.5; US Men's 4-5 EU 38-39: US Women's 7-8.5; US Men's 5.5-6 EU 40-41: US Women's 9-10.5; US Men's 6.5-8