Children’s feet grow quickly, especially during the early school years. Medical research from National Library Medicine confirms that:

• Between 12 and 30 months, children need new shoes every 2–3 months.

• Between 2 and 4 years old, roughly every 4 months.

• Between 4 and 6 years old, every 6 months.
  

Other podiatry experts like My Chicago Foot Expert  or AFC Dallas highlight that from ages 3 to 6, children’s feet can grow half a shoe size every 4–6 months, while between 6 and 10 years old, they may grow one to two sizes per year.

That’s why late August is the ideal time to check whether school shoes still fit – or if it’s time to size up.