The Arctic fox’s body height ranges from 35 to 65 centimeters, and its body length varies from 45 to 70 centimeters; the species' mass is between 3.09 and 3.15 kilograms. During the "Embryo" stage, the developing individual has a body mass ranging from 1 to 40 grams and a body length of 5 to 12 centimeters. As a “Pup,” the young have a body mass from 60 grams to 0.8 kilograms and a body length between 20 and 40 centimeters. The “Adult” stage is characterized by a body mass ranging from 3.5 to 5.5 kilograms and a body length of 50 to 70 centimeters.