How much does a cat weigh by age? - briefly
The weight of a cat varies significantly based on its age and breed. On average, newborn kittens weigh between 90-150 grams, while adult cats typically range from 3.6 to 6.8 kilograms, depending on their specific breed and overall health.
How much does a cat weigh by age? - in detail
The weight of a cat can vary significantly depending on its breed, gender, and overall health, but there are general guidelines that can help you understand how much a cat should weigh at different ages.
Newborn kittens typically weigh between 3 to 5 ounces (85 to 140 grams). During the first few weeks of life, they grow rapidly, doubling or even tripling their weight by the time they are one month old. At this age, kittens usually weigh between 10 to 16 ounces (280 to 450 grams).
Between one and three months, kittens continue to grow at a steady pace, gaining about an ounce per day. By the time they reach three months, their weight can range from 1 to 3 pounds (450 to 1360 grams), depending on the breed and gender.
From three to six months, kittens typically gain less than an ounce per day. At six months, a cat's weight can vary widely, ranging from 2 to 6 pounds (900 to 2700 grams). This is the age when some breed differences become more apparent. For example, a Siamese cat might weigh around 3 to 4 pounds (1360 to 1810 grams), while a Maine Coon could already be approaching 5 to 6 pounds (2270 to 2700 grams).
Between six months and one year, the growth rate slows down significantly. Cats usually gain only a few ounces per month during this period. By the time they reach their first birthday, most cats will weigh between 5 to 10 pounds (2.3 to 4.5 kilograms). Again, this can vary greatly depending on the breed and gender.
After one year, cats typically gain weight at a very slow rate, adding only about an ounce per month. The ideal adult weight for a cat varies by breed and gender, but as a general guideline, most domestic shorthair cats should weigh between 8 to 10 pounds (3.6 to 4.5 kilograms). Larger breeds like Maine Coons can weigh up to 20 pounds (9 kilograms) or more, while smaller breeds such as Siamese may only reach 5 to 7 pounds (2.3 to 3.2 kilograms).
It's important to note that being underweight or overweight can have serious health implications for cats. If you are concerned about your cat's weight, it is recommended to consult with a veterinarian who can provide personalized advice and ensure your cat is maintaining a healthy weight throughout its life.