The amount of food a cat needs per day can range from one-fourth to three-fourths of a cup of dry food, depending on the cat's size, age, weight, health and level of physical activity. Veterinarians can help determine the appropriate amount required for specific cats.
As a general rule, cats weighing up to 5 pounds typically need one-fourth to one-thirds of a cup of dry cat food per day. Cats between 5 and 10 pounds typically need three-eighths of a cup to half a cup of dry food. Cats between 10 and 15 pounds generally need half a cup to three-fourths of a cup per day. The feeding guide on the cat food label also ensures appropriate amounts because individual cat food products vary in caloric content and nutritional value.