Johnny Galecki Bio Age Family Wife Net Worth The Big Jonny amour Galecki tallness is approximately 165 centimeters. Johnny remains at a average height. While some might think of him not as excessively high, his prowess is limitless. Regardless Johnny's vertical dimension, Johnny is acknowledged in showbiz for his acting abilities. He has showcased time and again that height is not a determining factor when it comes to achieving greatness.