Mortgage Calculator
Calculate your monthly mortgage payment, total interest costs, and amortization schedule. Includes property taxes, homeowners insurance, and PMI. Plan your home purchase or refinance with confidence.
What Is a Mortgage Calculator?
A mortgage calculator is a free online tool that estimates your monthly mortgage payment based on the home price, down payment, loan term, and interest rate. Our advanced calculator also includes estimates for property taxes, homeowners insurance, and HOA fees to give you a complete picture of your monthly housing costs.
Understanding your mortgage payment is essential for budgeting, comparing loan options, and determining how much home you can afford. This calculator helps you make informed decisions when buying or refinancing a home.
How Does the Mortgage Calculator Work?
The calculator uses the standard mortgage payment formula to compute your monthly payment:
Monthly Payment (P&I) = P × [r(1+r)n] / [(1+r)n − 1]
Where:
P = Loan amount (Home Price − Down Payment)
r = Monthly interest rate (Annual Rate ÷ 12)
n = Total number of payments (Loan Term × 12)
Total Monthly Payment = P&I + Property Taxes (monthly) + Insurance (monthly) + HOA Fees + PMI (if applicable)
The calculator then generates a complete amortization schedule showing how much of each payment goes toward principal versus interest over the life of the loan.
Why Use This Mortgage Calculator?
- Comprehensive: Includes principal, interest, taxes, insurance, HOA fees, and PMI.
- Advanced Features: View a complete amortization schedule and payment breakdown chart.
- Free & Private: No registration, no data storage — your numbers stay on your device.
- Amortization Schedule: See how your loan balance declines over time with a year-by-year breakdown.
- Visual Breakdown: View a chart showing the composition of your monthly payment.
- Mobile-Friendly: Works on any device, from desktop to smartphone.
What Factors Affect Your Mortgage Payment?
- Home Price: The higher the purchase price, the larger the loan and monthly payment.
- Down Payment: A larger down payment reduces the loan amount and can eliminate PMI.
- Interest Rate: Even a small rate change can significantly impact your monthly payment and total interest.
- Loan Term: Shorter terms (15 years) have higher monthly payments but much less total interest.
- Property Taxes: Vary by location and can add hundreds to your monthly payment.
- Homeowners Insurance: Required by lenders; costs vary based on coverage and location.
- HOA Fees: Common in condos and planned communities; can add $100–$500+ per month.
- PMI: Required when down payment is less than 20%; adds 0.3%–1.5% of the loan amount annually.
❓ Mortgage & Home Buying FAQ
What is the difference between principal and interest?
Principal is the amount you borrow to buy your home. Interest is the fee you pay to the lender for borrowing that money. Your monthly payment goes toward both — early on, most goes to interest; later, most goes to principal.
What is PMI and when do I have to pay it?
Private Mortgage Insurance (PMI) is required by lenders when your down payment is less than 20% of the home price. It protects the lender if you default. PMI typically costs 0.3%–1.5% of the loan amount annually and is added to your monthly payment.
How does my credit score affect my mortgage rate?
Your credit score is one of the most important factors in determining your mortgage rate. Higher scores (740+) qualify for the best rates, while lower scores may result in higher rates or difficulty qualifying. A 100-point difference can save or cost you thousands over the life of the loan.
What is a 30-year vs. 15-year mortgage?
A 30-year mortgage has lower monthly payments but you'll pay significantly more in total interest over the life of the loan. A 15-year mortgage has higher monthly payments but you'll own your home free and clear in half the time and pay much less total interest.
What are closing costs and how much are they?
Closing costs are fees paid at the closing of a real estate transaction. They typically range from 2%–5% of the loan amount and include appraisal fees, title search, title insurance, attorney fees, and loan origination fees. Some can be negotiated or rolled into the loan.
How do property taxes affect my mortgage payment?
Property taxes are usually collected by your lender as part of your monthly payment and held in an escrow account. They vary by location and can add hundreds to your monthly payment. The calculator includes an estimate based on the annual amount you enter.
What is an escrow account?
An escrow account is a separate account managed by your lender to hold funds for property taxes and homeowners insurance. Each month, a portion of your payment goes into escrow, and the lender pays these bills on your behalf when they're due.
What is the difference between a fixed-rate and adjustable-rate mortgage?
A fixed-rate mortgage has the same interest rate for the entire loan term, providing predictable payments. An adjustable-rate mortgage (ARM) has a rate that can change after an initial fixed period (e.g., 5, 7, or 10 years), which could lead to higher or lower payments depending on market conditions.
How much home can I afford?
A general rule is that your monthly housing costs (mortgage, taxes, insurance) should not exceed 28% of your gross monthly income, and your total debt payments should not exceed 36%. Use our Home Affordability Calculator for a detailed analysis.
What is a mortgage pre-approval?
A pre-approval is a letter from a lender stating how much they're willing to lend you based on your credit, income, and assets. It's stronger than a pre-qualification and shows sellers you're a serious buyer. Most real estate agents recommend getting pre-approved before house hunting.
What is the difference between APR and interest rate?
The interest rate is the cost of borrowing the principal loan amount. The APR (Annual Percentage Rate) includes the interest rate plus other fees and costs associated with the loan, giving you a more complete picture of the total cost. APR is typically higher than the interest rate.
Can I pay off my mortgage early?
Yes, most mortgages allow you to pay extra toward principal without penalty. Paying even $100 extra per month can save thousands in interest and shorten your loan term by several years. Check with your lender to ensure there's no prepayment penalty.
What is a mortgage refinance and when should I consider one?
Refinancing means replacing your existing mortgage with a new one, typically to get a lower interest rate, change the loan term, or cash out equity. Consider refinancing when rates drop at least 0.5%–1% below your current rate and you plan to stay in the home long enough to recoup closing costs.
What is the difference between a conventional loan and an FHA loan?
Conventional loans are not insured by the government and typically require higher credit scores and larger down payments. FHA loans are insured by the Federal Housing Administration and allow lower credit scores and down payments as low as 3.5%, but require mortgage insurance for the life of the loan.
How does homeowners insurance affect my mortgage payment?
Lenders require homeowners insurance to protect their investment. The cost is typically added to your monthly mortgage payment and held in escrow. Annual premiums vary based on coverage amount, location, and the home's features — the calculator includes an estimate based on your input.
What is a balloon mortgage?
A balloon mortgage has lower monthly payments for a set period (usually 5–7 years), after which the remaining balance is due in full. This type of loan can be risky and typically requires refinancing or selling the home before the balloon payment comes due.
How accurate is this mortgage calculator?
This calculator provides accurate estimates based on the information you enter. However, actual mortgage payments may vary based on your specific loan terms, credit score, property taxes, insurance rates, and lender fees. Always consult with a mortgage professional for precise numbers.