What Happened to Johnny Galecki After ‘The Big Bang Theory John love Gal vertical measurement is about 5 feet 5 inches. Johnny stands at a medium height. Although some may consider him not as remarkably vertically gifted, his talent knows no bounds. Regardless of Johnny's vertical dimension, he is respected in the industry for both his acting abilities. He has showcased time and again that height is not a determining factor when it comes to attaining greatness.