How elevated is my son going to be?

Age: 11
Height: 4 ft. 10 in.
Weight: 73 lbs.
And he's a boy.
please help!
I don't know how well you keep library but if you do have a note of his height at two years weak, simply double that. That's the general rule for estimating a child's adult height.
The thing in the region of doubling the child's height at 2 years doesn't work. I've checked my records, my husbands and a couple family member, and it wasn't accurate for a single one of us. I wish it was, though, cause later I'd be 4 inches taller than I am now.
Answers:    I'm just going on the growth charts I be given when my baby was born. If I follow that curve to 20 years, he will be around 6ft. Of course this is really an estimate.

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