Mortgage Calculator — Monthly Payment & Amortization Free

A home is likely the largest purchase you will ever make, and understanding your monthly mortgage payment — including principal, interest, taxes, and insurance — is essential before making an offer. Our Mortgage Calculator breaks down every aspect of the payment and shows a complete amortization schedule.

What Is a Mortgage Calculator?

A mortgage calculator computes the monthly payment for a home loan based on the loan amount, interest rate, and loan term. Advanced calculators include property taxes, homeowner's insurance, and PMI (private mortgage insurance) for a complete picture of your monthly housing cost.

How to Use Our Mortgage Calculator

1. Enter the home price and your down payment amount or percentage.
2. Input the interest rate and loan term (typically 15 or 30 years).
3. Optionally add annual property tax, homeowner's insurance, and PMI.
4. The calculator shows monthly payment breakdown, total interest over the loan life, and a complete amortization schedule.

Why Use a Mortgage Calculator?

• Affordability check: See your total monthly payment before house hunting to set a realistic budget.
• Compare loan options: Test 15-year vs 30-year terms, different down payment amounts, and various interest rates.
• Total cost awareness: A $400,000 home at 7% over 30 years costs over $558,000 in interest alone. The calculator makes this cost visible.
• Amortization insight: See how in the early years, most of your payment goes to interest, and how the ratio shifts over time.

Common Use Cases

First-time homebuyers determine how much house they can afford by working backward from their maximum comfortable monthly payment. If $2,000/month is the budget, the calculator reveals that at 7% for 30 years, the maximum loan is about $300,000.

Homeowners considering refinancing compare their current payment to potential new terms. Dropping from 7% to 6% on a $350,000 loan saves about $230/month — but closing costs must be factored in.

Real estate investors calculate cash flow by comparing the mortgage payment against expected rental income to determine if a property will be cash-flow positive.

Tips and Best Practices

• A 20% down payment eliminates PMI, which typically costs 0.5-1% of the loan annually. On a $400,000 loan, that is $2,000-4,000/year.
• The 15-year mortgage has a higher monthly payment but saves enormously on total interest — often 50-60% less than the 30-year option.
• Do not forget to budget for maintenance (typically 1% of home value annually), HOA fees, and utilities. The mortgage is just part of the cost of homeownership.

Ready to try it? Use our free Mortgage Calculator now — no signup required, works entirely in your browser.

Frequently Asked Questions

How much house can I afford?

A common guideline is that your total monthly housing payment (principal, interest, taxes, insurance) should not exceed 28% of your gross monthly income. Use the calculator to work backward from your budget to find the maximum loan amount.

What is PMI and when is it required?

Private Mortgage Insurance (PMI) is required when your down payment is less than 20% of the home price. It typically costs 0.5-1% of the loan amount annually and can be removed once you reach 20% equity.

How much does 1% interest rate difference matter?

On a $400,000 30-year mortgage, the difference between 6% and 7% is approximately $250/month and over $90,000 in total interest over the life of the loan.