Our free amortization calculator generates a complete loan payment schedule, showing exactly how much of each payment goes toward principal and how much goes toward interest. This full amortization schedule is an essential tool for understanding the true cost of any mortgage or loan.

Many borrowers are surprised to learn how much of their early mortgage payments go toward interest rather than principal. In the early years of a 30-year mortgage, for example, the majority of each payment is interest. The amortization calculator makes this transparent by showing every single payment in detail.

How to Use the Amortization Calculator

Generating your amortization schedule is simple:

1. Enter your loan amount — the total amount borrowed.
2. Enter your annual interest rate.
3. Select your loan term — 10, 15, 20, or 30 years.
4. Click Generate Amortization to see your monthly payment and full payment table.

When Should You Use an Amortization Calculator?

Review your amortization schedule at the start of any loan to understand how your payments are structured over time. Furthermore, use it when deciding whether to make extra principal payments — the schedule shows exactly how much each extra payment saves you in total interest.

Additionally, the amortization calculator is valuable when refinancing. By comparing the remaining amortization schedule on your current loan against a new schedule with a lower rate, you can determine whether refinancing saves you money after accounting for closing costs.

How to Use Your Amortization Schedule Wisely

Your amortization schedule is more than just a table of numbers. Here is how to use it strategically:

• Find your equity build-up rate — The schedule shows when you hit 20% equity, which lets you cancel PMI in the USA.
• See the impact of extra payments — Paying one extra principal payment per year dramatically shortens your loan term.
• Understand the front-loading of interest — Knowing that most early payments are interest motivates many borrowers to pay extra early in the loan.
• Plan for refinancing — Check your schedule to see your remaining balance at any point — useful when calculating refinancing benefits.

Frequently Asked Questions About the Amortization Calculator

What is amortization?

Amortization is the process of paying off a loan through regular scheduled payments over time. Each payment covers both interest and a portion of the principal, with the interest portion decreasing and the principal portion increasing over the life of the loan.

Why do I pay more interest at the beginning of my loan?

Interest is calculated on your outstanding balance. At the start of a loan, your balance is at its highest, so more of each payment goes to interest. As you pay down the principal, less interest accrues and more of your payment reduces the balance.

Related Calculators

Furthermore, you might find these tools useful: Mortgage Calculator — Loan Calculator — Payment Calculator

Disclaimer: The amortization schedule shown is an estimate. Actual schedules may vary based on lender calculation methods and rounding.