How Long Are Norway Rats

Size: The head and body length of an adult Norway rat is about 7 to 9 inches long and the tail length is 6 to 8 inches in length. They range from 7 ounces to 20 ounces in weight.

How big do Norway rats get?

Size: They can reach lengths of 40 cm, and their tails alone can measure 21 cm. They are large rodents that may weigh in excess of 500 grams. Color: Norway rats have fur that is brown or gray in color. Characteristics: These rodents are covered in shaggy fur.

Is a Norway rat bigger than a roof rat?

Like most rats, Norway rats are vectors for many diseases that are dangerous to humans. Norway rats are cousins to roof rats, but they are larger. Norway rats can grow up to 19 inches long – including their tails. They are stockier than their sleeker roof rat relatives.