The normal weight of an adult male American Shorthair cat is 2.5-5.5 kilograms, which is related to the cat's physical condition. Generally, a healthy, regular, well-nourished cat can weigh 6 kilograms. Owners should pay attention to adjusting the cat's diet and take the cat for moderate exercise to prevent the cat from accumulating too much food and causing obesity, which will seriously affect the cat's health.