Mortgage Calculator

Calculate your monthly payment with full amortization schedule

Loan Details

Total Monthly Payment

$2,647

$320,000 loan at 6.85% for 30 years

Monthly Breakdown

Loan Summary

Home Price$400,000
Down Payment$80,000
Loan Amount$320,000
Total Interest$434,859
Total Cost$834,859

Amortization Schedule

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How Mortgage Calculators Work

How is my monthly mortgage payment calculated?

Your monthly principal and interest payment is calculated using a standard amortization formula that accounts for the loan amount, interest rate, and loan term. The formula ensures each fixed monthly payment covers both interest charges and a portion of the principal, with the interest share decreasing over time as the balance shrinks.

What's included in total monthly housing cost?

Your total monthly payment includes four components: principal and interest on the loan itself, property taxes (typically 0.5% to 2.5% of home value annually), homeowner's insurance, and HOA fees if applicable. Lenders often use this total figure when evaluating your debt-to-income ratio for loan approval.

How does the amortization schedule work?

An amortization schedule shows how each monthly payment is split between interest and principal over the life of the loan. In the early years, most of your payment goes toward interest. As the balance decreases, a larger share goes to principal. This is why making extra payments early can save significant interest over the life of the loan.

What is a Mortgage Payment?

A mortgage payment is the monthly amount you pay to your lender to repay your home loan. While the core of the payment is designed to pay down your principal and cover interest costs, most monthly payments also include additional costs like property taxes, homeowners insurance, and sometimes private mortgage insurance (PMI).

Understanding the components of your mortgage payment is essential for accurate budgeting and long-term financial planning. Our mortgage calculator breaks down these costs so you can see exactly where your money is going.

The 4 Components of a Mortgage (PITI)

Most lenders use an escrow account to collect monthly payments for taxes and insurance. This combined payment is often referred to as PITI:

  • P
    PrincipalThe amount of money that goes directly toward paying off the remaining balance of your loan. In the early years of a mortgage, a smaller portion of your payment goes to principal.
  • I
    InterestThe fee charged by the lender for borrowing the money. Interest is calculated based on your current loan balance and your annual percentage rate (APR).
  • T
    TaxesReal estate or property taxes are assessed by your local government. Lenders typically collect 1/12th of your annual tax bill each month.
  • I
    InsuranceThis includes homeowners insurance to protect your property and PMI if your down payment was less than 20%.

How Amortization Affects Your Wealth

Amortization is the schedule by which your loan is paid off. On a standard 30-year fixed-rate mortgage, your monthly payment remains the same, but the ratio of principal to interest shifts over time.

Early Years

Your payments are interest-heavy. You are primarily paying the bank for the privilege of borrowing. Equity builds slowly during the first 5-10 years.

Later Years

Your payments become principal-heavy. As the balance drops, interest charges decrease, and more of your money goes toward owning the home outright.

Frequently Asked Questions

How do I calculate my monthly mortgage payment?

Your monthly mortgage payment is calculated using the formula M = P[r(1+r)^n]/[(1+r)^n-1], where P is the loan principal, r is the monthly interest rate, and n is the number of payments. For a $300,000 loan at 7% over 30 years, the principal and interest payment is about $1,996/month.

What's included in a monthly mortgage payment?

A monthly mortgage payment typically includes four components (PITI): Principal (paying down the loan balance), Interest (the cost of borrowing), property Taxes (usually 1-2% of home value annually), and homeowner's Insurance. Some payments also include PMI (private mortgage insurance) if your down payment is less than 20%, and HOA fees.

How does mortgage amortization work?

Mortgage amortization is the process of paying off your loan over time through regular payments. Early payments are mostly interest, while later payments are mostly principal. For example, on a 30-year $300,000 loan at 7%, your first payment puts about $246 toward principal and $1,750 toward interest. By year 15, the split is roughly even.

Mortgage Tips

  • 20% Down Payment: Avoid the extra cost of Private Mortgage Insurance (PMI).
  • 15-Year vs 30-Year: 15-year loans have lower interest rates and build equity twice as fast.
  • The 28/36 Rule: Aim to keep your mortgage payment under 28% of your gross monthly income.