Calculate your monthly mortgage payment instantly, pre-filled with today's recent average rate. See your complete loan breakdown with amortization schedule, refinance scenarios, and total interest cost. Free to use, and your inputs stay in your browser.
Quick answerMonthly payment = loan × r ÷ (1 − (1 + r)−n), where r is the monthly rate and n the number of payments. A $300,000 loan at 6.5% over 30 years has a principal and interest payment of about $1,896.20 a month, before taxes and insurance.
How to calculate a mortgage payment
Enter the home price and your down payment.
Enter the interest rate and loan term. Use your lender's quote if you have one.
Add property tax, insurance and fees if you want a full monthly cost.
Read the monthly payment, total interest and amortization schedule.
Recent Average Mortgage Rates
7.28%
30-Year Fixed
6.60%
15-Year Fixed
ℹ️ This is a recent average rate that is updated by hand, not a live quote. Enter the rate from your lender for an accurate result.
Published: January 1, 2026|Last Updated: October 3, 2026
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Written by Shahid Abbas — Web Developer and Finance Tool Creator at ToolPond
Quick Answer
This free mortgage calculator computes your monthly payment, amortization schedule, and total interest cost. It's pre-filled with the live national average mortgage rate (sourced from Freddie Mac, updated weekly), so results reflect current market conditions rather than a stale number. Enter your home price, down payment, and loan term to see your full breakdown — no signup required.
Understanding Your Mortgage: The Math Behind Your Home Loan
Example: $240,000 loan at today's live 30-year average rate
A mortgage is likely the largest financial commitment of your life. Furthermore, understanding how your loan works — what you pay in principal versus interest — is essential for making informed decisions about homeownership.
What is a mortgage? A mortgage is a loan to purchase real estate, secured by the property itself. In addition, you borrow money upfront and pay it back over time with interest. Unlike other loans, mortgages typically have very long terms of 15 to 30 years.
How much of my payment is interest vs principal? In the early years of a mortgage, most of your payment goes to interest. However, as time goes on, increasingly more goes to principal. At today's live rate shown above, your first payment on a typical loan is often 75-80% interest and only 20-25% principal. As a result, understanding the amortization schedule is crucial.
What affects mortgage payments? Four main factors determine your monthly payment. First, the loan amount — a larger loan means a larger payment. Additionally, the interest rate has a significant impact, and rates currently sit well above the 2021-2022 lows. Moreover, the loan term matters greatly. Finally, your down payment determines the loan size.
To get the full picture of your finances, you can additionally use our Budget Planner to manage monthly expenses, our Salary Calculator to calculate your income, and our Loan Calculator for other types of loans. Furthermore, our Retirement Calculator can help you plan your long-term financial future.
Calculate Your Monthly Payment
Loan Amount
$0
Monthly Payment
$0
Total Interest
$0
Total Cost
$0
Complete Monthly Payment Breakdown
Principal & Interest$0
Property Tax$0
Homeowners Insurance$0
HOA Fees$0
Total Monthly Payment$0
Amortization Schedule (First 12 Months)
Month
Principal
Interest
Balance
💡 Mortgage Facts
Interest Over Life of Loan
On a $300k loan at a recent average rate, you will pay approximately $430k-$450k in interest over 30 years. Therefore, understanding the true cost of the loan is essential.
💰 Down Payment Impact
✓ 20% = no PMI insurance required
✓ 10% = lower loan, but PMI needed
✓ 5% = accessible but PMI expensive
✓ 3% = maximum for most loans
📊 15 vs 30 Year
15-year: Higher monthly payment, however less total interest.
30-year: Lower monthly payment, but consequently far more total interest.
This is the standard amortization formula used by all lenders. Furthermore, your total monthly payment also includes property tax, insurance, and HOA fees if applicable. As a result, the total cost is often higher than most buyers initially expect.
How to Use This Mortgage Calculator
1
Enter Home Price: First, enter the purchase price of the home you are buying or refinancing.
2
Set Down Payment: Next, enter how much cash you are putting down. The calculator shows the percentage automatically.
3
Check the Interest Rate: The rate field is pre-filled with today's recent average — adjust it if a lender has given you a specific quote.
4
Choose Loan Term: Furthermore, select 15, 20, or 30 years. You can also use a custom term if needed.
5
Add Additional Costs: Moreover, add property tax rate, insurance estimate, and HOA fees for a complete picture.
6
Get Results: Finally, click Calculate to see your monthly payment, total interest, amortization schedule, and complete cost breakdown.
💡 Expert Mortgage Tips
First, shop around for rates — even 0.5% difference means tens of thousands in interest over 30 years
Additionally, consider 15-year vs 30-year carefully — 15-year costs more monthly but saves enormous interest
Furthermore, put 20% down to avoid PMI insurance which can add hundreds to monthly payment
Moreover, do not forget property tax and insurance — they are often as much as principal and interest combined
As a result of unexpected costs, build in a 10-15% buffer above your calculated affordable payment
Therefore, lock in your rate when you find it — rates have been moving daily in the current market
In addition, consider extra principal payments — even $100 per month extra can shorten loan by 5 or more years
Finally, refinance when rates drop meaningfully (0.75%+) below your current rate
Frequently Asked Questions
How much house can I afford?▼
A common rule is that your monthly housing payment should not exceed 28% of gross income. If you earn $6,000 per month, your housing payment should be under $1,680. Use this calculator to test what income level works for your target price and rate.
What is PMI and when can I remove it?▼
PMI is required if your down payment is less than 20%. You can remove PMI once you have paid down the loan to 80% of the home's value, which usually takes 8 to 12 years at today's typical rates.
Should I get a 15-year or 30-year mortgage?▼
A 15-year mortgage has a higher monthly payment, typically 25-30% more, but you pay roughly half the total interest. A 30-year mortgage offers lower monthly payments but costs significantly more in interest over the life of the loan. Use this calculator to compare both at today's actual rates.
How much interest will I pay in total?▼
This calculator shows total interest in the results using the rate shown on the page. At a recent average 30-year rate, a $300,000 loan typically costs around $430,000-$450,000 in total interest over the full term — which is why extra principal payments save so much money.
Should I refinance my mortgage?▼
Refinancing generally makes sense if current rates are at least 0.75-1% lower than your existing rate, and you plan to stay in the home long enough to recoup closing costs of roughly $3,000 to $6,000, which typically takes 2 to 3 years to break even.
What is the average mortgage rate today?▼
Mortgage rates change daily and are shown live at the top of this calculator, sourced from Freddie Mac's weekly Primary Mortgage Market Survey. As of early October 2026, the 30-year fixed average is around 7.2-7.4%, and the 15-year fixed average is around 6.6-6.8%.
Real-World Mortgage Examples (at a recent average rate)
Example 1: First-Time Buyer ($300k Home, 10% Down)
Home Price: $300,000 | Down Payment: $30,000 | Loan: $270,000 | Rate: 7.28% (today's average)
Result: P&I ≈ $1,848/month. Total interest ≈ $395,000. Total cost ≈ $665,000 over 30 years.
Example 2: 20% Down Payment ($300k Home)
Home Price: $300,000 | Down Payment: $60,000 | Loan: $240,000 | Rate: 7.28% (today's average)
Result: P&I ≈ $1,643/month, roughly $205 less than the 10%-down scenario. No PMI is required. Total interest ≈ $351,000.
Example 3: 15-Year vs 30-Year Comparison ($240k loan)
30-Year at 7.28%: ≈ $1,643/month. Total interest ≈ $351,000.
15-Year at 6.60%: ≈ $2,106/month, about 28% more monthly. Total interest ≈ $139,000 — roughly $212,000 less than the 30-year option.
Figures above are illustrative, calculated using the recent average rates shown at the top of this page. Your actual rate depends on credit score, lender, and loan type — use the calculator above with your own numbers for a precise estimate.