Marble foxes, also known as Canadian marble foxes, can weigh up to approximately 9 kilograms. The weight of a marble fox can vary depending on factors such as age, sex, and overall health. Males and females may have slight differences in weight, with males generally being slightly larger and heavier. It's important to note that marble foxes, being wild animals, have specific dietary and environmental requirements to maintain a healthy weight. If considering a marble fox as a pet, it is crucial to ensure proper care, nutrition, and space to accommodate their needs.