Willie belongs to my mother. He's an exceptionally large Maine Coon and maintains weights of 22 to 24 lb. As I'm sure most everyone is aware, Maine Coons are one of the largest breeds of cats...normally surpassed only by the Norwegian Forest cat weighing between 13 to 22 lb(6 to 10 kg) and sometimes the Ragdoll, weighing in at 10-20 lb (4.5-9 kg).