accounting calculators

Loan Amortization Calculator

Calculate monthly payments and amortization schedule for loans with principal and interest breakdown

About this calculator

A loan amortization calculator helps you understand the complete payment structure of your loan by breaking down each monthly payment into principal and interest components. This powerful tool generates a detailed amortization schedule showing how much of each payment goes toward reducing the loan balance versus interest costs. It's essential for budgeting, comparing loan offers, and understanding the total cost of borrowing over the loan's lifetime.

How to use

Enter your loan amount, interest rate, and loan term in years. The calculator will instantly display your monthly payment amount and generate a complete amortization schedule. Review the breakdown to see how principal and interest portions change over time, with early payments consisting mostly of interest.

Frequently asked questions

What is loan amortization?

Loan amortization is the process of paying off debt through regular payments that cover both principal and interest over a set period.

Why do early payments have more interest?

Interest is calculated on the remaining balance, which is highest at the beginning, so more of each early payment goes toward interest.

Can I make extra principal payments?

Yes, extra principal payments reduce your balance faster, save on interest costs, and can shorten your loan term significantly.