How Strong Are Grizzly Bears?

Grizzly Bears are one of the strongest land predators, with a strength equivalent to 2.5 to 5 humans. Their bite force is up to 1100 PSI, which is stronger than the lions. They can also easily lift more than 500 pounds with a single paw and reach up to 30 miles per hour in a sprint, despite the size.

Grizzlies are one of the most feared animals in North America, but how much do we really know about them? Let’s learn some interesting facts about this impressive creature, including how strong they are. You may be surprised!

A Short Introduction to The Grizzly Bear

The grizzly bear (Ursus arctos horribilis), also known as the North American brown bear and Grizzlies, is a large subspecies of brown bear that typically lives in the uplands of western North America. Grizzlies are typically 6 to 8 feet long and weigh up to 1200 pounds. Females are typically smaller and lighter than males.

The grizzly bear is characterized by its large size, shaggy coat, hump on the shoulder, and long claws. They are omnivorous, which means they eat both plants and animals. Their diet consists of up to 90% vegetation, although this varies depending on the season and location. Some of their favorite foods include roots, fruits, berries, nuts, and grasses.

While on the hunt, grizzly bears will eat just about anything they can catch, including fish, small mammals like squirrels and even large animals such as elk and deer. They usually don’t consider humans as potential prey.

Grizzly bears are generally solitary and territorial animals, although they will come together in groups during mating season or if there is a plentiful food source. They have a home range of 50 to 600 square miles depending on food availability and gender.

Grizzly Bear’s Strength

There are many different ways to measure the strength of an animal, but one standard method is to look at the size and weight of the creature in question. By these standards, the grizzly bear is one of the strongest land mammals on Earth.

Adult male grizzlies weigh around 400 to 790 pounds (the largest ever recorded is 1200 pounds), while females are typically about 30 to 50 percent smaller. To put this into perspective, the average American man weighs just 197.6 pounds. So a full-grown grizzly bear is roughly three to four times larger than a human!

With all that mass comes some serious strength. It is estimated that grizzly bears can lift around 0.8 times their own body weight. This means that a large male grizzly bear could potentially lift over 1000 pounds! Along with the strength to lift heavy objects, grizzlies also have incredibly powerful jaws.

Their paws are strong enough to take down large full-grown animals with one shot, and their sharp claws can easily rip open the hide of their prey. Grizzlies also have very large canine teeth that can be up to 3 inches long. Their bite force is so high that they can even crash a bowling ball with ease.

Also, you simply can’t underestimate the speed of a grizzly. They may appear sluggish when lumbering around on land, but they are actually quite fast and agile. Grizzlies can reach speeds of up to 35 miles per hour in short bursts, making them the quickest in the bear family.

Grizzly Bear’s Strength Compared to Other Predators

While grizzly bears are one of the strongest land mammals, they are not the strongest predators. In terms of lifting capacity, gorillas are more capable, as they can lift around 20 times their body weight. When it comes to bite force, the Nile crocodile takes the cake with a powerful bite that can reach up to 5000 PSI!

Some animals that can outperform grizzly bears in respect of overall strength include tigers, gorillas, elephants, and some species of bears, including polar bears and Kodiak bears. Grizzly bears come next on the list, followed by lions and wolves.


While grizzly bears may not be the strongest animal, they are still an impressive species with a lot of power. Their strength, combined with their sharp claws and teeth, make them a force to be reckoned with in the wild. If you ever come across a grizzly bear in the wild, it is best to give them a wide berth!