My 7 year old is topping the charts - literally 100th percentile for both. 52 inches and somewhere between 70 and 75 pounds (70 pounds a couple months ago, but we have no scale).
The interesting thing is that this is new. Up until this year (6 or so) he was always in the 50th (sometimes 75th) percentile for height.
When he was a (very much, often and long) breastfed toddler he was WAY hight in the weight (95th percentile or so) but still only 50th in height.
Between 3 and 6 he was still 50th for height, but had "slimmed down" to 75th for weight.
Actually at his one year checkup he was going thru a pudgier stage and his ped said he was borderline obese. That was RIGHT before he shot up in height. I wasn't too worried as he exercises a LOT (biking, playing hard, two nights of martial arts), but I was relieved when he suddenly got as tall as my armpits!
I expect him to be big and sturdy. My family is all tall - my brother is 6' 6" and HIS son is 6' 8" and weighs about 220.
So - as the mother of a child who has been "heavier than his height" percentile for years, despite never having had a soda, eating tons of fruit and veggies, little junk food, no TV/limited screen time, and exercising a lot - I sometimes wonder about the utility of those charts.