Mortgage Amortization Calculator (8b) Amortization Schedule Including Property Appreciation Who This Calculator is For: Borrowers who want to know how long it will take for amortization on an FRM combined with property value appreciation to reduce the ratio of loan balance to property value to some desired level. What This Calculator Does: This calculator shows monthly amortization on an FRM, property value appreciation expected by the user, and the ratio of loan balance to expected property value.