Richard Simmons, standing at an exact 5ft 6 ½ (168.9 cm), was an American fitness icon whose modest height amplified his larger-than-life, flamboyant personality and boundless energy. On The Late Show with David Letterman in 1994, he cheerfully confirmed, "[I'm] five-six and a half," embracing his stature as part of his endearing, eccentric image. Despite his 5ft 6 frame, Simmons dominated the fitness world with high-energy aerobics videos like Sweatin' to the Oldies, his Emmy-winning The Richard Simmons Show, and motivational TV appearances that inspired millions to exercise and embrace positivity.