Mortgage Calculators Refinance Interest Savings Examine your principal balances by payment, total of all payments made, and total interest paid. Mortgage Qualifier Quickly see how much interest you will pay, and your principal balances. Determine the impact of any principal prepayments! Mortgage Comparison Calculator Compare different mortgage scenarios and sort through the monthly payments, fees and other costs associated with getting a mortgage. Mortgage Loan Calculator This calculator steps you through the process of finding out how much you can borrow. Rent vs. Buy This calculator helps you weed through the fees, taxes, and monthly payments to help you make a good financial decision. Mortgage Payoff How much interest can you save by increasing your mortgage payment? This financial calculator helps you find out.