Grey Foxes generally grow to about 2 feet to its shoulder and about 2.5 feet to the tip of his ears. Red Foxes can get 1.5 feet to its shoulder and 1.10-2 foot to its head.
With females, it is an average of 3-3.5 inches per year. With males, it is an average of 4 inches per year. You can increase these numbers by exercise, proteins [Found in meats, dairy, nuts, e.c.t....