Gorillas, when standing on their hind legs, typically reach heights between about 5 feet (1.5 meters) and 6.6 feet (2 meters), depending on the subspecies and individual.
- Adult male gorillas, especially silverbacks, generally stand between 5 ft 6 in (1.67 m) and 6 ft 6 in (2 m) tall on their hind legs, with some exceptional individuals recorded at up to 7 ft 3 in (2.2 m) in captivity
- Western lowland gorillas, the smallest subspecies, stand about 4.5 to 5.5 feet (1.4 to 1.75 m) tall bipedally, with males averaging around 6 feet (1.8 m)
- Mountain gorillas and eastern lowland gorillas tend to be slightly taller, with adult males standing upright around 5 ft 6 in to 6 ft (1.67 to 1.83 m)
- Gorillas usually move quadrupedally but can stand and walk on two legs for short distances, reaching their full height when standing upright
In summary, on their hind legs, gorillas can be roughly as tall as or taller than the average human male, with heights commonly ranging from about 5.5 to 6.6 feet, and exceptional individuals reaching over 7 feet tall.
