Mortgage Calculator
Modify the values and click the Calculate button to use
Annual Tax & Cost
Annual Tax & Cost Increase
Extra Payments
+ Additional One-Time Payments
Save & Compare Scenarios
Saved Scenarios
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Total Monthly Payment: $0.00
Monthly | Total | |
---|---|---|
Mortgage Payment (P&I) | $0.00 | $0.00 |
Extra Payment | $0.00 | $0.00 |
Property Tax | $0.00 | $0.00 |
Home Insurance | $0.00 | $0.00 |
PMI | $0.00 | $0.00 |
HOA | $0.00 | $0.00 |
Other Costs | $0.00 | $0.00 |
Total Out-of-Pocket | $0.00 | $0.00 |
House Price: $0.00
Loan Amount: $0.00
Down Payment: $0.00
Total Out-of-Pocket Cost: $0.00
Total Interest: $0.00
Total Extra Payments: $0.00
Mortgage Payoff Date: N/A
If Payback Biweekly without Extra Payments
Biweekly Payment: $0.00
Payoff Length: 0 years, 0 months
Total Interest: $0.00
Interest to be Saved
With Biweekly Payment Only $0.00
Latest Weekly Average Rates (Source: FRED)
30-Year Fixed: Loading...% 15-Year Fixed: Loading...%
Amortization Schedule
No. | Mo /Year | Interest $ | Principal $ | Ending Balance $ |
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Table of Contents
Key Takeaways Mortgage Calculator
- Mortgage payments are more than just principal and interest. Our PITI+ mortgage calculator shows the full monthly cost, including property taxes, insurance, PMI, HOA fees, and other recurring expenses.
- Calculate your core monthly payment using the standard formula (see below). Then add all extra costs to see your true budget. This avoids surprise escrow bills and helps plan your finances with confidence.
- Our advanced mortgage calculator tool (mortgage-calculator.my) stands out by being transparent and user-friendly. It lets you compare scenarios (like different down payments or loan terms), factor in inflation, and even analyze bi-weekly payments for faster payoff.
- Making extra payments or switching to a bi-weekly plan can save you a lot of interest and shorten the loan. Our calculator shows exactly how extra payments speed up payoff, but it also highlights important considerations (prepayment penalties, opportunity costs, liquidity, tax implications).
- Always enter realistic values (home price, down payment, interest rate, taxes, insurance, HOA, etc.) to get an accurate estimate. Use our free tool to plug in your numbers and see a clear breakdown of each part of your mortgage payment.
What Is a Mortgage and Why Use a Calculator?
A mortgage is a long-term loan used to buy a home. Most U.S. mortgages are fixed-rate and last 15 or 30 years. Each monthly payment covers some interest (the cost of borrowing) and some principal (paying down the loan).
A mortgage calculator helps by:
- Showing your true payment: It breaks down your monthly cost into principal, interest, taxes, and insurance, so you see the full picture.
- Comparing options: You can test different loan amounts, interest rates, and terms to see what fits your budget.
- Budgeting: It gives you exact numbers for your payment and total costs, removing guesswork.
Basically, a calculator is a free tool to plan your home loan wisely.
Meet Our PITI+ Mortgage Calculator Tool
Buying a home is a huge step, and knowing exactly how much you’ll pay each month is crucial. That’s where our Mortgage Calculator (at mortgage-calculator.my) comes in. It’s not just a simple tool – it’s a transparent home loan planner that tells you the entire story behind your payment. Unlike basic calculators that only spit out a principal-and-interest number, our tool calculates Principal + Interest + Taxes + Insurance + other costs (we call this the “PITI+” advantage).
Think of it this way: most calculators are a bit like black boxes – they show you one number and leave you guessing the rest. Our calculator removes the mystery. Enter your home price, down payment, interest rate, loan term, and start date. Then add all the extras: property tax rate or amount, homeowner’s insurance, HOA fees, PMI (private mortgage insurance) if needed, and any other recurring or one-time costs. The result is a big-picture view of your monthly payment. You can even factor in future cost increases (inflation) and extra payments to see their impact on your loan.
Our tool is packed with features:
- Scenario Saving & Comparison: Try different down payments or interest rates, save each scenario, and compare them side by side. See how a 15-year loan stacks up against a 30-year loan, or how a bigger down payment could save you thousands.
- Bi-Weekly Payments: If you get paid bi-weekly, instantly see how splitting payments in half each paycheck can cut months off your mortgage.
- Interactive Charts: We show clear charts that break down your monthly costs and a visual amortization graph that tracks how your principal balance falls over time.
- Export & Reports: Need paperwork? Download a detailed report (with your summary and full amortization schedule) to Excel or PDF for your records.
With all these tools, our calculator becomes a financial co-pilot for your homebuying plan. You can model extra payments, plan for taxes, and ultimately make smarter choices.
How to Calculate Your Monthly Mortgage Payment
The heart of any mortgage calculator is the math behind your monthly payment. At its core, the loan’s principal and interest are calculated with a standard amortization formula. Think of it as a precise way the bank works out your fixed monthly payment.
Here’s the formula:

M = P * (r * (1 + r)^n) / ((1 + r)^n - 1)
Where:
- M – is your monthly principal-and-interest payment.
- P – is the loan principal (the amount you borrow).
- r – is your monthly interest rate (for example, 6% annual ÷ 12 = 0.005).
- n – is the total number of monthly payments (loan term in years × 12).
In plain language, the formula evenly spreads your total payments over all months. You simply enter the values into our calculator and it does the math for you. It outputs your principal & interest (P&I) payment – the core mortgage payment to the lender. But remember, that’s only part of what you pay each month.
What Is the True Monthly Cost (PITI+ Explained)?
The P&I number above is often called the “mortgage payment,” but it’s just the beginning. In real life, homeowners also pay taxes, insurance, and sometimes extra fees. These are usually paid to an escrow account or separately. Our calculator adds up all of these to give your Total Monthly Payment (sometimes called PITI+):
- P – Principal (portion that reduces your loan balance).
- I – Interest (the lender’s charge for borrowing money).
- T – Property Taxes (a percentage of home value paid to local government).
- I – Insurance (homeowner’s insurance).
- + – Plus any other recurring costs (PMI, HOA fees, maintenance, etc.).
Putting it all together, the formula is:
Total Monthly Payment = Monthly P&I + Monthly Taxes + Monthly Insurance + Monthly PMI + Monthly HOA + Other Monthly Costs.
For example, if your principal-and-interest is $2,000, taxes are $300, insurance is $100, PMI is $50, and HOA is $200, your total out-of-pocket monthly payment is $2,650. Our calculator displays this full number prominently, so you budget for the true cost of homeownership, not just what goes to the lender.
This PITI+ advantage prevents surprises. If you only saw the P&I ($2,000 in our example), you’d miss the extra $650 needed for taxes and insurance. We show the whole $2,650. It’s the bottom-line number you need to plan around.
Using the Calculator: What Inputs You Need
To get an accurate result, enter all relevant information:
- Home Price & Down Payment: Enter the home’s sale price and down payment (or loan amount after down payment). The calculator will determine your loan amount and note if PMI is needed for down payments under 20%.
- Loan Term & Interest Rate: Specify your loan term in years (15, 30, etc.) and the annual interest rate (APR).
- Start Date: Choose the month and year you make your first payment.
- Property Tax: Enter annual property tax, either as a percentage of home value or a fixed dollar amount.
- Home Insurance, HOA, Other Costs: Enter annual home insurance and any HOA fees. You can also add other regular housing costs if desired.
- PMI (Mortgage Insurance): If down payment <20%, enter your PMI cost (usually 0.5–1% of the loan per year).
- Annual Increases: Optionally enter an annual percentage increase for taxes, insurance, or HOA to model inflation.
- Extra Payments (Optional): Add any extra monthly, yearly, or one-time payments. The calculator will include these in the payoff schedule.
The more complete your inputs, the more useful the results. You can leave any field blank or zero to exclude it. Then click Calculate.
Interpreting Your Results: Breakdown Explained
Once you click Calculate, the results will appear:
- Monthly Payment Summary: Shows your P&I payment and the total monthly payment including taxes and insurance, often with a chart breakdown.
- Annual & Lifetime Totals: Shows the sum of all payments over the loan (just P&I) and the combined total including taxes/insurance.
- Amortization Table: Breaks down every payment by date, showing interest vs principal and the remaining balance.
- Payoff Summary (with Extra Payments): If you added extras, this shows the new payoff date and total interest saved.
- Bi-Weekly Comparison: If you chose bi-weekly payments, this shows the shorter payoff date and interest saved under that plan.
Check each part to make sure it matches your inputs. The tool highlights your true monthly cost (PITI+ total). If something seems off, double-check your entries. For example, forgetting to add PMI or entering the wrong interest rate can change the results.
Saving Money with Extra Payments
One of the best ways to pay off your mortgage faster and save interest is making extra payments toward the principal. Our calculator makes it easy to model this:
- Monthly Extras: Add a fixed extra amount each month (e.g. an extra $200). The calculator will include this to reduce your principal over time.
- Yearly Extras: Make one extra payment each year at a chosen month.
- One-Time Lump Sum: Add a single large extra payment (like a bonus) in any month.
After entering any extras, recalc. The Payoff Summary will then show your new payoff date and interest saved, making the benefit clear.
Benefits of Extra Payments
- Lower Interest Costs: Extra payments reduce your balance sooner, so you pay far less interest over the life of the loan.
- Shorter Loan Term: You’ll finish the loan years earlier, becoming debt-free faster.
- More Equity: You build home equity faster, which helps if you sell or refinance.
Our calculator quantifies exactly how much you save.
Considerations for Paying Early
Paying extra has trade-offs. Consider:
- Prepayment Penalties: Some loans charge fees if you pay off early. Check your mortgage terms.
- Opportunity Cost: You might earn a higher return by investing that money elsewhere.
- Liquidity: Extra payments tie up cash in your home, making it harder to access if needed.
- Tax Deduction: Less interest paid means a smaller mortgage interest tax deduction (if you itemize).
Our calculator shows the interest you save, but weigh these factors before proceeding.
Considering Bi-Weekly Payments
Another strategy to pay off faster is making bi-weekly payments. A year has 52 weeks, so paying half your mortgage every two weeks yields 26 half-payments (13 full payments) instead of 12 per year.
If you select the bi-weekly option, you’ll see:
- Biweekly Payment: The amount equal to half your normal monthly P&I.
- New Payoff Date: Usually a few years earlier than the original schedule.
- Interest Saved: Often thousands less over the life of the loan.
For example, a 30-year loan might finish in about 25 years with bi-weekly payments, saving tens of thousands in interest. The calculator shows both scenarios side by side so you can easily compare.
Reading Between the Lines: Understanding the Output
After you calculate, review each result:
- Loan Summary: It will echo your inputs (house price, loan amount, down payment). Make sure these match what you intended.
- Total Payments vs Out-of-Pocket: Compare the “Total of X Mortgage Payments” (sum of all P&I) to “Total Out-of-Pocket” (including taxes/insurance). The difference is how much you’ll pay in taxes and insurance over the loan.
- Total Interest: This is the total interest you’ll pay under the scenario. A large amount here shows how costly long-term interest can be.
- Payoff Date: This tells you when your last payment is due (with or without extras). It’s a key planning number.
If any figure surprises you, revisit your inputs. The calculator’s goal is clarity: it lays out every cost so you make informed decisions.
Frequently Asked Questions
How do I calculate my monthly mortgage payment?

Use the standard loan amortization formula. You need the loan amount (P), monthly interest rate (r), and total number of payments (n = years × 12). Plug into:
M = P * (r * (1 + r)^n) / ((1 + r)^n – 1)
This gives you the monthly principal & interest payment. Then add your monthly taxes and insurance to get your total payment.
What costs are included in a mortgage payment?
Your mortgage payment can include:
Principal & Interest: The main loan payment.
Property Taxes: Monthly escrow for real estate tax.
Home Insurance: Monthly premium for your homeowners insurance.
PMI: If your down payment was under 20%, you pay private mortgage insurance.
HOA Fees: Any monthly dues to a homeowners association.
Other Costs: Any other housing costs you entered (like maintenance or utilities).
We include all these in the total so you see the complete monthly housing expense.
How can extra payments affect my mortgage?
Extra payments directly reduce the principal balance, so you pay less interest and finish the loan faster. The calculator then shows the new payoff date and the total interest saved.
Are there downsides to paying off a mortgage early?
Possible downsides include:
Prepayment Penalties: Some loans charge fees for early payoff.
Opportunity Cost: You might get higher returns investing elsewhere.
Lower Liquidity: You’ll have less cash on hand if it’s tied up in equity.
Smaller Tax Deductions: Less interest paid means a smaller mortgage interest deduction (if you itemize).
Weigh these factors, but the calculator helps you see the interest savings clearly.
How much mortgage can I afford?
That depends on your income, debts, and down payment. A common guideline is to keep housing costs under ~28% of your gross income. To find your limits, use the calculator by inputting different loan sizes. Increase or decrease the loan until the total monthly payment fits comfortably in your budget. The tool will show you the exact monthly cost.
Conclusion
Owning a home comes with many costs, but a good mortgage calculator makes the math clear. By using our PITI+ mortgage calculator, you’ll see not just your core payment but the full monthly cost including taxes and insurance. You can explore different scenarios, add extra payments, and find the best plan for your budget.
Ready to take control of your mortgage? Use our free mortgage calculator at mortgage-calculator.my. Enter your numbers to get a clear breakdown of all your payments. With this insight, you’ll plan confidently and make smarter decisions toward owning your home.
Disclaimer
This mortgage calculator is a free online tool provided for informational and educational purposes only. The calculations and results are based on the data you provide and are intended to be estimates. While we strive to provide accurate calculations, we do not guarantee their accuracy or applicability to your individual circumstances.
The information presented here does not constitute financial, investment, or legal advice. You are solely responsible for any decisions or actions you take based on the information from this tool. We strongly recommend that you consult with a qualified professional, such as a financial advisor or mortgage broker, before making any financial commitments.