Around 3 to 4. But it depends on your size
There is no average shoe size for a 15 year old girl. Shoe size can vary and it depends on height.
It really just depends on the two-year old girl overall size and which country you live in. The shoe size in Mexico is different from the size in the USA, and so on.
The average shoe size for a 2 year old girl is a US size 8. This size is in Adult size.
About a size 231
three
size 1-5
The average shoe size for a 7 year old girl is around a size 2 to 3 in children's shoes. However, this can vary depending on individual growth and development.
usually about size 3 or 4.
Between size 8 and 9
Everyone is different!
Most likely a typical 4 yo girl will wear 9 1/2 to 10 size shoe.
It varies for everyone.