How much is the total monthly payment for a $100,000 house?

Right now I am paying $900 in rent including utilities. I am wondering if it would be just about the same if I bought a $100,000 home and put down $20,000 down payment. (which I would be able to do) I know it depends on alot of things but I would like to hear from someone whos been there. Thanks alot everyone.
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