My son is 12 and 4'9.5 and about 80 lbs. i am 5'2 and dad is 6'2-6'3. what is my son's predicted adult height.

5'11" or so: The basic height prediction assumes that a kid will achieve the average of both parents plus 2.5 inches in males. His height is about average for a 12 yo so he should be on track to reach 5'11. There are variables, since some kids enter puberty a bit later and finish growing later than others so their might be more. Both mom & dad are treated equally in basic height prediction.