Loan Amortization Calculator


Loan Amortization Calculator

Estimate your loan payments, total interest, and total amount paid over the loan term. This calculator uses standard fixed-rate loan formulas.

Loan Details
Loan Amount (Principal): $
Annual Interest Rate: %
Loan Term: Years
Payment Frequency:

Understanding Loan Amortization

Loan amortization is the process of paying off a debt with a fixed repayment schedule in regular installments over time. Each payment consists of both principal and interest. In the early stages of a loan, a larger portion of the payment goes towards interest, while later payments have a higher principal component.

The monthly payment (M) for a fixed-rate loan is typically calculated using the formula:

M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1 ]

  • P = Principal Loan Amount
  • i = Monthly Interest Rate (Annual Rate / 12 / 100)
  • n = Total Number of Payments (Loan Term in Years * 12 for monthly payments)

This calculator provides a quick estimate based on these standard calculations.

Financial Resources Amortization (Investopedia) Mortgage Interest Calculator (CFPB) Loan Amortization Schedules (Khan Academy)
Financial Fitness & Health Math Other