According to Live Strong, a child’s foot grows nearly 1cm each year. Between birth and the age of four, a child’s foot double in length. By the age of 10, most girls have completed 90% of foot growth. A boy completes about 80% of his foot growth by the time he is 10 years old. The feet have stopped growing for most girls at the age of 14. Foot growth stops for boys when they reach 16 years of age.
To find out more about foot growth in children, visit Live Strong: https://www.livestrong.com/article/514495-foot-growth-in-children/
If you are concerned about your child’s feet, see the NHS’s advice: https://www.nhs.uk/conditions/pregnancy-and-baby/leg-and-foot-problems/