How Much Do Gorillas Weigh?
Gorillas, the largest primates in the world, are fascinating creatures with impressive physical characteristics. If you’ve ever wondered, how much do gorillas weigh, the answer can vary significantly depending on their species, age, and gender. Here’s a breakdown to help you better understand their size and stature.Weight of Different Gorilla Species

- Eastern Lowland Gorillas: Also known as Grauer’s gorillas, these are the largest of all gorilla species. Adult males, often referred to as silverbacks, can weigh between 400 to 500 pounds (180 to 230 kilograms). Females are smaller, typically weighing around 150 to 200 pounds (68 to 90 kilograms).
- Mountain Gorillas: These iconic gorillas are slightly smaller than their lowland relatives. Males weigh around 300 to 440 pounds (135 to 200 kilograms), while females usually weigh between 150 to 220 pounds (68 to 100 kilograms).
- Western Lowland Gorillas: These gorillas are the smallest subspecies. Adult males weigh about 310 to 440 pounds (140 to 200 kilograms), and females weigh approximately 150 to 180 pounds (68 to 82 kilograms).
- Cross River Gorillas: Similar in size to Western Lowland Gorillas, males weigh between 300 to 440 pounds (135 to 200 kilograms), and females range from 150 to 200 pounds (68 to 90 kilograms).
Factors Affecting Gorilla Weight

- Age: Juvenile gorillas weigh significantly less than fully-grown adults. For example, a newborn gorilla weighs just about 4 to 5 pounds (1.8 to 2.3 kilograms) at birth.
- Diet: Gorillas are herbivores, consuming large quantities of fruits, leaves, and stems. Their diet plays a crucial role in maintaining their weight and overall health.
- Habitat: Gorillas living in different environments may have slight variations in weight due to the availability of food and other environmental factors.
Why Gorilla Weight Matters
The weight of gorillas is a critical factor in their survival. Their robust build helps them fend off predators and establish dominance within their groups. Silverbacks, the dominant males, use their size to protect their family troops and maintain order. Additionally, conservationists monitor gorilla weight to assess their health and the overall wellbeing of their populations. Tracking how much gorillas weigh provides insights into the effects of habitat loss, poaching, and climate change on these magnificent creatures.Fun Fact: How Gorillas Compare to Humans
