What is the difference in size 13.5 little girls shoe and size 1 little girl?

The difference between a size 13.5 little girls' shoe and a size 1 little girl's shoe primarily lies in their length and width. Size 13.5 typically corresponds to a foot length of about 8.5 inches, while size 1 corresponds to around 8.75 inches. As a result, size 1 shoes are longer and may also be slightly wider than size 13.5 shoes, reflecting the growth and development of children's feet as they age.