Amortization Calculator

Enter your loan details to see how much of each monthly payment goes toward principal and interest.

You can also see how paying extra toward your principal could help you pay off your loan faster and save on interest.

$
%
months
$
Per month
Without extra
With extra
Monthly payment
Months saved
Interest saved
Total interest with extra

Payment By Payment

Payment #PaymentTo principalTo interestExtraBalance left

Disclaimer: This calculator is provided for informational and educational purposes only. Results are estimates based on the information entered and assume a fixed interest rate, consistent monthly payments, and any additional principal payments being applied directly to the loan balance. Actual results may vary based on your loan terms, payment timing, and loan servicer. Calculations do not include property taxes, homeowners insurance, mortgage insurance, or other applicable fees. Results are not a guarantee of savings or early loan payoff.

What Is a Mortgage Amortization Calculator?

A mortgage amortization calculator helps you understand how your monthly mortgage payments are divided between principal and interest over the life of your loan.

In the early years of a mortgage, a larger portion of each payment typically goes toward interest. As your loan balance decreases, more of your monthly payment goes toward paying down your principal.

Our mortgage amortization calculator lets you explore this breakdown and see how making additional payments toward your principal could impact your payoff timeline and total interest paid.

How Can Extra Principal Payments Help?

Making additional payments toward your mortgage principal can help reduce your outstanding loan balance faster. Depending on your loan terms, even a small additional monthly payment could make a difference over time.

Using the calculator above, you can adjust your loan amount, interest rate, loan term, and extra principal payment to estimate:

  • How quickly you could pay off your mortgage

  • How many months you could save

  • How much you could potentially save in interest

  • How additional principal payments affect your loan

Have Questions About Your Mortgage?

Whether you’re purchasing a home, refinancing, or looking for ways to pay down your existing mortgage, understanding your loan can help you make more informed financial decisions.

Our team at Florida Mortgage Firm is happy to help you explore your mortgage options and better understand what may work for your situation.