15 Year Fixed Mortgage Rate Calculator




Calculating mortgage rates is a crucial step in the home-buying process, and having an accurate tool can make this task much more manageable. In this article, we’ll provide a comprehensive 15-Year Fixed Mortgage Rate Calculator using HTML and JavaScript. This calculator will help you estimate your monthly payments based on the most accurate and perfect formula for calculation.

How to Use

To use the 15-Year Fixed Mortgage Rate Calculator, simply enter the loan amount, interest rate, and loan term in the designated input fields. Click the “Calculate” button, and the result will be displayed instantly. This tool streamlines the mortgage rate calculation process, providing you with quick and reliable results.


The formula used in this calculator is based on the standard formula for calculating monthly mortgage payments:



  • is the monthly mortgage payment.
  • is the loan amount.
  • is the monthly interest rate (annual rate divided by 12).
  • is the total number of payments (loan term in years multiplied by 12).


Let’s consider an example. If you have a $200,000 loan with an annual interest rate of 4% and a 15-year term:


After inputting these values into the calculator, you will obtain the accurate monthly payment.


Q: How accurate is this calculator?

A: This calculator uses the precise formula for mortgage rate calculation, ensuring accurate results.

Q: Can I trust the estimated monthly payments?

A: Yes, the calculator provides reliable estimates based on the input data and the standard mortgage payment formula.

Q: Is this calculator suitable for other loan terms?

A: While specifically designed for a 15-year fixed mortgage, you can adapt it for other terms by adjusting the loan term value.


In conclusion, the 15-Year Fixed Mortgage Rate Calculator presented here offers a user-friendly and accurate solution for estimating monthly mortgage payments. By utilizing the standardized formula, users can trust the results provided by this calculator, making it a valuable tool in the home-buying process.

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