Orangutans are extremely strong primates, with strength estimated to be about five to seven times that of an average human. They can lift weights up to 225 kilograms (500 pounds), which is more than twice their own body weight

. Their grip strength is also remarkable, around 270 kilograms (600 pounds), enabling them to move adeptly through the forest canopy

. This extraordinary strength is largely concentrated in their arms, which are long and powerful, with an arm span that can reach up to 2.2 meters (about 7.2 to 8 feet), relative to their body size

. Male orangutans typically weigh between 73 to 180 pounds (33 to 80 kilograms), while females are smaller and generally less strong due to lower body mass

. In addition to their muscular strength, orangutans have a strong bite force averaging around 575 PSI, which is more than double that of humans and helps them crack tough fruit shells

. Although not as strong as gorillas, orangutans are considered the second strongest great apes and can easily overpower humans in terms of raw physical strength

. Their strength is an adaptation to their arboreal lifestyle, requiring powerful arms and grip to swing and climb through trees continuously

. Despite their strength, orangutans tend to be less aggressive than some other apes, such as chimpanzees, but when provoked, their strength can lead to serious injuries in fights

. In summary, orangutans are about 5 to 7 times stronger than humans, capable of lifting over twice their body weight, with exceptional arm and grip strength, making them one of the strongest animals relative to their size