A valuable amortization schedule calculator for your website. The Amortization Schedule Calculator calculates the amortization, or loan repayment, schedule for a loan. The calculated amortization schedule shows the principal amount, interest amount, and remaining balance, as well as total interest, total payments, and final payment date. The Amortization Calculator is a tool for estimating your loan budget and understanding amortization schedules before you ever have to deal with a mortgage broker.