Mortgage Calculator

What Is a Mortgage Calculator?

A mortgage calculator helps homebuyers and homeowners estimate their monthly housing payment, including principal, interest, taxes, insurance (PITI), PMI, and HOA fees. It also shows the full amortization schedule — a month-by-month breakdown of how each payment reduces your loan balance. Whether you’re buying your first home, refinancing, or comparing loan terms, this tool gives you the numbers you need to make confident decisions.

How to Use This Mortgage Calculator

1️⃣ Enter the home price — the purchase price of the property.
2️⃣ Enter down payment — either as a dollar amount or percentage. Aim for 20% to avoid PMI.
3️⃣ Select loan term — 30, 20, 15, or 10 years. Shorter terms have higher payments but much less interest.
4️⃣ Enter interest rate — check current mortgage rates from lenders.
5️⃣ Add annual property tax and insurance — these vary by location. Typical property tax rates are 0.5-2% of home value.
6️⃣ Enter PMI if down payment < 20% — typically 0.5-1% of loan amount annually.
7️⃣ Add HOA fees if applicable — common for condos and planned communities.
8️⃣ Add extra monthly payment (optional) — see how much interest and time you save.
9️⃣ Click “Calculate Mortgage” — view your total monthly payment, interest breakdown, and full amortization schedule.

Real-Life Mortgage Examples

Understanding Mortgage Amortization

In the early years of a mortgage, most of your payment goes toward interest. As the loan matures, more goes toward principal. Extra payments made early have the greatest impact — every extra dollar reduces principal and eliminates future interest on that dollar. This is why the calculator’s extra payment feature shows such significant savings.

Frequently Asked Questions