Mortgage Calculator

Estimate your monthly home loan payments.

Why Use This Calculator?

Estimate your monthly mortgage payments, including principal, interest, taxes, and insurance (PITI). Understand how different loan terms and interest rates affect your overall housing costs.

Mortgage Calculator Preview and Amortization Diagram

Recommended Workflow

1

Determine Property Value

Enter the total home price you are targeting or an actual listing price.

2

Set Down Payment

Provide your down payment amount (20% is standard to avoid PMI).

3

Input Loan Details

Enter the interest rate and select your loan duration.

4

Add Taxes and Insurance

Include estimates for property tax, home insurance, and HOA fees for an accurate monthly breakdown.

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How the Mortgage Calculator Works

This calculator uses the standard amortization formula to determine your fixed monthly payment. Amortization is the process of spreading out a loan into a series of fixed payments over time (learn how amortization works). In the beginning, a larger portion of your payment goes towards interest, and as time passes, more goes towards the principal balance.

Understanding the Results

  • Estimated Monthly Payment: The amount you will pay every month for the duration of the loan. This only covers Principal and Interest (P&I). It does not include property taxes, home insurance, or HOA fees.
  • Total Payment: The absolute total amount of money you will pay over the entire life of the loan (Principal + Interest).
  • Total Interest: The cost of borrowing the money. A longer loan term or higher interest rate will significantly increase this number.

Example Calculation

Imagine taking out a $300,000 mortgage at a 5.5% fixed interest rate for 30 years:

  • Monthly Payment: $1,703.37
  • Total Interest Paid: $313,212.52
  • Total Lifetime Cost: $613,212.52

Notice that over 30 years at 5.5%, you actually pay more in interest than the original cost of the house itself!

Common Mistakes to Avoid

Forgetting Taxes & Insurance

Your actual monthly bill to the lender will be higher than the P&I shown here because they usually collect property taxes and insurance in an escrow account.

Ignoring Term Lengths

A 30-year term gives lower monthly payments but costs much more in interest. A 15-year term has higher payments but saves tens of thousands in long-term interest.

This calculator provides estimates for informational purposes only. Please read our Financial Disclaimer.

Common Mistakes to Avoid

  • Forgetting to include property taxes and insurance in your monthly estimate.
  • Assuming the initial interest rate will stay the same if using an adjustable-rate mortgage (ARM).
  • Ignoring PMI (Private Mortgage Insurance) costs if your down payment is less than 20%.

Real-World Examples

Buying a $400,000 Home with 20% Down

Inputs (The Math)

  • Home Price$400,000
  • Down Payment$80,000 (20%)
  • Loan Amount$320,000
  • Interest Rate6.5%
  • Loan Term30 Years

Outputs (The Result)

  • Monthly Principal & Interest$2,022.62
  • Total Interest Paid$408,144.60
  • Total Cost of Loan$728,144.60

Why it works this way

By putting 20% down, the buyer avoids Private Mortgage Insurance (PMI). However, over the 30-year term at a 6.5% interest rate, the buyer will actually pay more in interest ($408,144) than the original loan amount itself ($320,000).

Assumptions & Limitations:
  • Fixed interest rate for the entire 30 years.
  • No extra principal payments made.
  • Does not include property taxes or home insurance.

Personal Loan vs. Mortgage Calculator

See the difference between general loan repayment and complex mortgage amortization.

FeatureLoan Repayment CalculatorMortgage Calculator
Typical Use CasePersonal loans, auto loans, short-term debtHome loans, real estate financing
Includes Property Taxes & Insurance?NoOptional (PITI calculation)
Typical Term Length1 to 7 years15 to 30 years

Frequently Asked Questions

What is PMI (Private Mortgage Insurance)?

PMI is an insurance policy that protects the lender if you default on your loan. It is usually required if your down payment is less than 20% of the home's purchase price.

Does this calculator include taxes and insurance?

No, this calculator only estimates the Principal and Interest (P&I) portion of your payment. You will need to add property taxes, homeowners insurance, and HOA fees to get your total monthly obligation (PITI).

What is an amortization schedule?

It is a complete table of periodic loan payments, showing the amount of principal and the amount of interest that comprise each payment until the loan is paid off at the end of its term.

Financial Disclaimer

This calculator is provided for educational and estimation purposes only. It does not constitute financial advice. Actual loan terms, interest rates, and payments will vary based on your lender and credit profile.

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