The ideal weight for a healthy cat depends on several factors, including breed, age, and body type. On average, a healthy adult domestic shorthair cat should weigh between 8 and 10 pounds. However, some breeds, such as Maine Coons, can weigh up to 25 pounds or more, while smaller breeds, such as Siamese cats, may only weigh around 5 pounds. Kittens typically weigh between 2 and 4 pounds at birth and gain about 1 pound per week until they reach adulthood at around 1 year of age.
It is important to monitor your cat's weight regularly to ensure they are maintaining a healthy weight. Overweight or obese cats are at risk for a number of health problems, including diabetes, heart disease, and arthritis. If you are concerned about your cat's weight, talk to your veterinarian.