That all depends on the type of species you're referring to.
Sun bears are the smallest breed of bears. Adult sun bears are 47-59 inches long and weigh around 27-64 kgs only. Male sun bears are 15-20 percent bigger than females.
When born the bear is 1 pound. Most females weigh 290-440 pounds, while males weigh 180-360 pounds.
That all depends on the species.
Bears can weigh more than 1,400 pounds.
450 lbs
2 pounds
900g
About 1,000,000,000,000 lbs
Over 9000 pounds
Grizzlies can weigh up to a thousand pounds. Kodiak bears (Alaskan Grizzly Bears) can get as large as 1500 pounds. Polar bears are approximately the same size as Kodiaks, and can also weigh as much as 1500 pounds.
120 pounds
The polar bear is stronger because it weighs much more than the liger. Polar bears weigh much more than ligers since polar bears weigh 950 pounds to 1760 pounds. Ligers weigh about 800 pounds. Brown bears, like kodiak bears and alaskan brown bears, are also stronger than ligers.
between 350 and 400 pounds
Brown bears weigh 500 lbs to 1800 lbsPolar bears weigh 800 lbs to 1700 lbsAmerican black bears weigh 125 lbs to 800 lbsAsiatic or asian black bears weigh 150 lbs to 450 lbsSloth bears weigh 250 lbs to 450 lbsSun bears weigh 90 lbs to 145 lbs
Majority of brown bears weigh around 0.5 to 0.25 tons.
Polar bears weigh less than 0.9 kg (2.0 lb) at birth.
No. Males are quite a bit larger. Females weigh from 350 -600 pounds. Males can weigh nearly 1200 pounds.
Male black bears can weigh between 150-600 pounds when they are full grown. Female black bears only weigh between 90-300 pounds when they are. Surprisingly, baby black bears only weigh about 8-12 ounces when they are first born.
Adult black bears weigh about 240 lbs