A grizzly bear's weight varies by sex, age, and population, but generally:

• Adult male grizzly bears typically weigh between 400 to 700 pounds (about 180 to 320 kilograms), with some reports noting up to around 860 pounds (390 kg) in certain cases.
• Adult females usually weigh less, around 250 to 350 pounds (115 to 160 kilograms), with some variation depending on the environment.
• Cubs weigh about 5 pounds (2.3 kg) when they emerge from their dens.

These weights reflect averages, and individual bears can be heavier or lighter depending on factors like diet, location, and season.