Yes, Maine Coons are often cited as being the biggest of all domesticated cat breeds. On average, the Maine Coon male weighs between 13 and 18 lb (5.9 – 8.2 kg) and females weigh between 8 and 12 lb (3.6 – 5.4 kg). Their height is quite significant as well – an adult Maine Coon can be anywhere between 10 and 16 in high (24 to 41 cm), and in terms of length – up to 48 in (120 cm). The tail alone can reach a length of 14 in (36 cm). The Guinness World Records accepted a male purebred Maine Coon named “Stewie” as the “Longest Cat” in 2010. Stewie measured 48.5 in (123 cm) from the tip of his nose to the tip of his tail. Unfortunately, Stewie died three years later (at the age of 8) from cancer. Nevertheless, such impressive proportions only make the comparisons with dogs that much interesting.