How do I figure out the mostly cost of a unit?

[Bryce Bradshaw]

Im a college student and am wanting to get started in real estate. Right now I'm in the process of getting a home for me to live in and renting the rest of the rooms out to other students. I have heard of people doing this and it seems like a good idea, instead of paying to live in apartment just getting a home and having the other renters paying enough to cover all the expenses. I have found a few places that fit the criteria i've been looking for but now I'm having a hard time determining how much it will cost me each month for the house. What factors do i need to know, and about how much would it cost monthly for a home that is selling for about 160?