How it works
The loan calculator determines fixed-rate amortized loan schedules. Using the loan principal, annual interest rate, and term (in months or years), it solves for the recurring payment required to bring the loan balance to zero. It also projects the total interest paid and maps out the payment schedule, showing the decline of the principal balance over time.
Payment = Principal x [r(1+r)^n] / [(1+r)^n - 1] where r is the monthly interest rate (annual rate / 12) and n is the total number of monthly payments.