How old was Robert Pershing Wadlow when he reached 5 feet tall?

OMG he is very tall 8 ft 11.1 in (2.72 m)

Ages Height Weight

0 8 lb 6 oz

4 5 ft 4 in

8 6 ft 2 in

10 6 ft 6 in 220 lb ITS ALL TRUE LOOK AT WIKIPEDIA ITS TRUE!!!!!!

13 7 ft 4 in

16 7 ft 10.5 in 365 lb

17 8 ft 1.5 in 400 lb

18 8 ft 4 in 390 lb

19 8 ft 6 in 435 lb

21 8 ft 9.5 in 491 lb

22 8 ft 11.1 in 490 lb At death, Robert Wadlow is the world's tallest man