This mortgage calculator will compute a monthly payment amount based on the principal amount borrowed, the length of the loan and the annual interest rate. This calculator will also compute your total mortgage payment which will include your property tax, property insurance and PMI (Private Mortgage Insurance - protects the lender against default by the borrower) payments. Once you have computed the monthly payment, click on the "Create Amortization Schedule" button to create a report you can print out. Amortization is the repayment of a loan with periodic payments of both principal and interest calculated to payoff the loan at the end of a fixed period of time.