The height of Dwayne 'The Rock' Johnson is 6ft 5in, that makes him 196cm tall. Dwayne 'The Rock' Johnson Compared To My 5ft 10in (177cm) Height. Dwayne 'The Rock' Johnson's height is 6ft 5in or 196cm while I am 5ft 10in or 177cm. I am shorter compared to him. To find out how much shorter I am, we would have to subtract my height from Dwayne 'The Rock' Johnson's height.