15 Year Fixed Calculator

Introduction: The 15-Year Fixed Calculator is a handy tool for individuals planning to secure a fixed-rate mortgage. This calculator helps estimate both monthly and total payments based on the loan amount and annual interest rate. Understanding these figures is crucial for budgeting and making informed decisions about mortgage commitments.

Formula: The calculator employs the formula for calculating monthly mortgage payments for a fixed-rate loan:



  • M is the monthly payment,
  • P is the loan amount,
  • r is the monthly interest rate (annual interest rate divided by 12 and converted to a decimal),
  • n is the total number of payments (15 years converted to months).

The total payment is calculated by multiplying the monthly payment by the total number of payments.

How to Use:

  1. Enter the loan amount in the “Loan Amount ($)” field.
  2. Enter the annual interest rate in the “Annual Interest Rate (%)” field.
  3. Click the “Calculate” button to obtain results.
  4. The “Monthly Payment” and “Total Payment” fields will display the calculated amounts.

Example: For example, if you have a $200,000 loan with an annual interest rate of 3.5%, the calculator might show a monthly payment of $1,429.77 and a total payment of $257,959.72.


  1. Q: What is a fixed-rate mortgage?
    • A: A fixed-rate mortgage maintains the same interest rate throughout the entire loan term, providing predictable monthly payments.
  2. Q: Is the monthly payment the same every month?
    • A: Yes, with a fixed-rate mortgage, the monthly payment remains constant, making budgeting more straightforward.
  3. Q: Can I use this calculator for other loan durations?
    • A: This calculator is specifically designed for a 15-year fixed-rate mortgage. Consider using a different calculator for other loan terms.
  4. Q: What factors influence the total payment amount?
    • A: The total payment is affected by the loan amount, interest rate, and the loan duration.
  5. Q: Is the interest rate the only cost in a mortgage?
    • A: No, other costs may include property taxes, homeowners insurance, and, if applicable, private mortgage insurance (PMI).

Conclusion: The 15-Year Fixed Calculator provides valuable insights into the financial aspects of a fixed-rate mortgage. Use this tool to plan your budget, understand your monthly obligations, and make informed decisions about your homeownership journey. Keep in mind that additional costs may apply, and it’s advisable to consult with a financial advisor for comprehensive mortgage guidance.

Leave a Comment