The Big Bang Theory RealLife Relationship Status Age Jonny heart Galecki vertical measurement is roughly 5 feet 5 inches. He is at a modest stature. Although some may consider him not excessively high, his skills is boundless. Irrespective of Johnny's upright measurement, Johnny is respected in the industry for his acting skills. Johnny has showcased time and again that one's stature doesn't dictate success when it comes to reaching success.