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It is not possible to estimate the adult height of a boy from his height at the age of 10 because children have growth spirts at different times as they age. Generally, the adult height of a boy will be twice his height at the age of 3 years. The adult height of a girl will be twice her height at the age of 2.5 years. This is always assuming that no debilitating disease or genetic condition is present to alter the situation.

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Q: If a 10 year old boy is 4 foot 2 inches tall how tall will he be when he is 20 years old?
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I am 14 year old boy 5 foot 5 inches tall how tall will you be at 21?

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Is five foot ten inches tall for a 15 year old?

No, it is not.


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It is possible for a 14 year old boy who is 5 foot 10 inches tall to be over 6 feet tall. Height is determined by genetics.


How tall will a 5 foot 10 inch 14 year old boy be could he be 6 foot 2 inches or 6 foot 3 inches?

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