We'll see...

Height Predictor

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Your boy will likely be 5 ft. 10 in. at age 18.

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Young men often continue to grow a little past 18 until they reach 21, but their height at age 18 is very close to their final adult height. This prediction is a "best guess" but it's still just that -- a guess. Based on the formula we used* there is a 50 percent chance that your boy's full-grown height will be within 0.8 inches (above or below) of this prediction, and a 90 percent chance that it will be within 2.1 inches.

(Nutrition is not factored in, it says. I suspect he will be just shy of 6 ft. His diet is nothing like what we got growing up (no offense parents! Food options have vastly improved since the 70's-80's). His dinner tonight was eggs, black beans, avacado, cheese, tomatoes, strawberries, apples, grapes, some nuts, and half a whole wheat carrot muffin. The boy likes to eat.).