* Command Module (CM): This was the main part that housed the astronauts during the journey to and from the Moon, as well as during the lunar orbit. It was about 10.4 feet (3.17 meters) tall.
* Service Module (SM): This was attached to the Command Module and provided propulsion, electrical power, and life support systems. It was about 28 feet (8.5 meters) tall.
* Lunar Module (LM): This was the landing craft that took two astronauts down to the lunar surface. It was about 23 feet (7 meters) tall.
So, the overall height of the Apollo 11 spacecraft depended on which modules were attached and how they were configured.
The full stack of the Command, Service, and Lunar Modules was approximately 36 feet (11 meters) tall. However, for launch, the Lunar Module was docked on top of the combined Command and Service Modules, adding to the overall height.
