The SpaceX Starship stands about 123 meters (403 feet) tall when fully stacked, which includes both the Super Heavy booster and the Starship spacecraft itself. The Starship spacecraft alone (Block 2 version) is about 52.1 meters (171 feet) tall, while the Super Heavy booster is about 71 meters (232 feet) tall. Together, the total height reaches approximately 123 meters (403 feet), making it the tallest rocket currently in existence.