If you’ve ever seen a hamster run endlessly in its wheel, you already know that hamsters like to move. Many experts believe that hamsters can run an average of more than five miles at night. An animal that is active needs room to roam. According to the National Hamster Council, a Syrian hamster should have a minimum of 155 square inches of usable floor space. A dwarf hamster needs roughly 124 square inches of usable floor space. Again, this is the minimum. If you can afford something larger, in most cases that is preferable. However, personalities differ from hamster to hamster, and there are some that may find comfort in a smaller space.