Are you considering buying a house and wondering what your monthly payment will be? The calculator below is for fixed rate mortgages. If you don't know the difference between a fixed rate mortgage and an adjustable rate mortgage (ARM), check out our article on Fixed vs Adjustable Rate Mortgages. If you're considering an ARM, we also have a free ARM Calculator. And, if you'd like to compare the two, please see our ARM vs Fixed Rate Mortgage Calculator.