How big is the biggest gorilla ever?

Eastern Lowland Silverback

The eastern lowland silverback is the largest gorilla in the world. When Eastern lowland gorillas grow to maturity, the silverback can weigh 204 to 250 kilograms. The female eastern lowland gorillas weigh half of the weight of the males'.

The biggest gorilla weighed around 800 pounds and stood 6.8 ft tall.