What Size Shoes Do Infants Wear?
Infants wear different shoe sizes as they grow, and no two infants are exactly the same as to at what point their feet matches any particular size; however, generally speaking, newborns wear U.S. size 0 and Euro size 16 to about 6 weeks and US1/Euro17 until 3 months.
U.S. size 1 infant shoes are 3.33 inches in length. U.S. size 2 infant shoes, Euro size 18 fit 3- to 6-month-olds and are 3.67 inches long. Infant sizes U.S. 3 and 3.5 and Euro 18 fit 6- to 9-month-olds, and U.S. 4 and 4.5 and Euro 19 fit 9- to 12-month-olds.