Mortgage Calculator
Calculate monthly mortgage payments with full amortization schedule. Includes tax, insurance, and HOA.
Amortization Schedule
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $3,577 | $20,695 | $316,423 |
| 2 | $3,816 | $20,455 | $312,607 |
| 3 | $4,072 | $20,200 | $308,535 |
| 4 | $4,345 | $19,927 | $304,191 |
| 5 | $4,636 | $19,636 | $299,555 |
| 6 | $4,946 | $19,325 | $294,609 |
| 7 | $5,277 | $18,994 | $289,332 |
| 8 | $5,631 | $18,641 | $283,701 |
| 9 | $6,008 | $18,264 | $277,694 |
| 10 | $6,410 | $17,861 | $271,284 |
A comprehensive mortgage calculator that estimates your monthly payment and full amortization schedule based on loan amount, down payment, interest rate, and term. Includes optional property tax, home insurance, and HOA fees for a true total monthly cost. All computation happens in your browser — no data is sent to any server.
Buying a home is one of the biggest financial commitments most people ever make. Our Mortgage Calculator helps you understand what you will actually pay each month — not just principal and interest, but the full picture including property tax, home insurance, and HOA dues. Enter your loan amount, down payment, APR, and term to instantly see your monthly payment, total interest paid, and total cost of the loan over its lifetime.
The year-by-year amortization schedule reveals how each payment splits between principal and interest, and how your loan balance shrinks over time. Early on, most of your payment goes toward interest; later years flip the ratio and you build equity faster. Toggle the schedule to see the first 10 years or the full term. Because everything runs in your browser, you can explore rate and term scenarios instantly and privately.
- 1
Enter your loan details
Provide the home price (as loan amount) and your down payment. Adjust the interest rate (APR) and loan term to match your lender's offer.
- 2
Add carrying costs
Optionally include annual property tax, annual home insurance, and monthly HOA fees to see your true all-in monthly housing cost.
- 3
Review the amortization schedule
Scan the year-by-year breakdown of principal, interest, and remaining balance. Click to reveal the full schedule for any term length.
Compare loan offers
Plug in APR and term from competing lenders to see which offer has the lowest total interest and monthly payment.
Plan a home purchase budget
Figure out the maximum home price you can afford based on the monthly payment you're comfortable with.
Evaluate refinancing
Compare your current loan to a hypothetical refinance at today's rates to estimate lifetime interest savings.
Understand PITI
See how taxes, insurance, and HOA fees materially change your monthly housing cost beyond principal and interest alone.
What formula does this calculator use?
The standard fixed-rate amortization formula: M = P × [r(1+r)^n] / [(1+r)^n − 1], where P is the loan principal, r is the monthly interest rate (APR ÷ 12), and n is the total number of monthly payments.
Does this include PMI (private mortgage insurance)?
PMI isn't a separate input, but you can add its monthly cost into the home insurance field to include it in your monthly total. PMI typically applies when your down payment is less than 20%.
Is my financial data sent anywhere?
No. All calculations happen entirely in your browser. Nothing is transmitted, logged, or stored on any server.
Can I model extra principal payments?
This calculator focuses on the standard schedule. For extra-payment scenarios, check out the separate Loan Calculator which models additional monthly principal payments.
Why does interest dominate my early payments?
Interest is charged on the remaining balance each month. Early in the loan your balance is near the full principal, so the interest portion is largest. As the balance drops, the interest shrinks and more of each payment pays down principal.