Introduction
Buying a home is a big money choice. This home buying calculator helps you see the real numbers before you sign anything. Put in a home price, a down payment, and an interest rate. You will get your monthly mortgage payment right away.
The tool has five parts:
- Mortgage Payment — See your full monthly cost: loan payment, property tax, insurance, PMI, and HOA fees. For a focused view of just the loan, try the Mortgage Calculator or the PITI Calculator.
- Affordability — Find out how much house you can buy based on your income and debts, much like our Home Affordability Calculator.
- Amortization — See how each payment splits between interest and principal. Add extra payments and watch how much interest you save with the Mortgage Extra Payment Calculator.
- Closing Costs — Add up the cash you need on closing day, by state. See also the Closing Cost Calculator.
- Rent vs. Buy — Compare renting and buying to find the year buying starts to win, the same way our Rent vs Buy Calculator does.
Every tab shows charts, tables, and step-by-step math, so you can see how the answer was found. Change any number and the results update at once. Use it to set a budget, compare loan terms, or check if a home is priced fairly for your area.
How to use our Home Buying Calculator
Enter your home price, down payment, loan term, interest rate, and other housing costs, and the calculator shows your monthly mortgage payment, how much home you can afford, a full payoff schedule, your closing costs, and whether renting or buying costs less.
Mortgage Payment tab
Home Price: Type the price of the home you want to buy, or drag the slider.
Down Payment (amount): Enter the cash you will pay up front in dollars. The percent box updates on its own. Not sure how much to save? Use the Down Payment Calculator.
Down Payment (%): Or enter the percent instead, and the dollar amount updates. Under 20% adds PMI.
Loan Term: Pick how many years you will pay the loan: 10, 15, 20, 25, or 30. Compare a 15 Year Mortgage Calculator against a 30 Year Mortgage Calculator to see the trade-off.
Annual Interest Rate: Enter the rate your lender quoted you, as a percent. The Mortgage Rate Calculator shows how small rate moves change your payment.
Property Tax Rate: Enter your yearly property tax as a percent of the home value. Our Property Tax Calculator helps you estimate this.
Homeowner's Insurance: Enter what you pay for home insurance each year. The Homeowners Insurance Calculator gives a quick estimate.
HOA Fees: Enter your monthly homeowners association fee. Use 0 if you have none.
PMI Rate: Enter the yearly PMI rate as a percent of the loan. This box only matters if you put down less than 20%. See the PMI Calculator for when PMI drops off.
Home Size: Enter the size of the home and pick ft², m², or acres. This gives you cost per area. The Square Footage Calculator can help if you only have room dimensions.
Local Market Price per Area: Enter the going price per ft² or m² in your area to see if the home is priced above or below the market.
Scenario B Loan Term, Down Payment, and Rate: Enter a second set of terms to compare side by side with your main loan.
Affordability tab
Annual Gross Household Income: Enter all income before taxes for everyone buying the home. If you only know your hourly wage, the Hourly to Salary Calculator converts it fast.
Monthly Car Payment(s): Enter what you pay each month for all car loans or leases. Check the figure with our Auto Loan Calculator.
Monthly Student Loans: Enter your total monthly student loan payment, which you can confirm with the Student Loan Calculator.
Monthly Credit Card Minimums: Enter the smallest payment your cards ask for each month. The Minimum Payment Calculator shows what that really costs you.
Other Monthly Debt: Enter any other loan or debt payments, like personal loans or child support. Use the Debt Payoff Calculator if you want to clear these first.
Monthly Living Expenses: Enter food, utilities, childcare, and savings. This is not debt, but it shapes your budget chart. A Monthly Budget Calculator makes this easier to pin down.
Down Payment Available: Enter the cash you have saved for the down payment.
Estimated Interest Rate: Enter the rate you expect to get on your loan.
Loan Term: Choose the length of the loan you plan to take.
Home Price You're Considering: Enter a target price to see your debt-to-income score for that home. For a deeper look, open the DTI Calculator.
Amortization tab
Home Price: Enter the price, or click "Use Mortgage Tab Values" to copy it over.
Down Payment: Enter your down payment in dollars.
Interest Rate: Enter your loan rate as a percent.
Loan Term: Pick the number of years for the loan.
Extra Monthly Payment: Enter any extra dollars you will add to every payment. The Mortgage Payoff Calculator shows the new payoff date.
Annual Extra Payment: Enter a lump sum you will pay once a year, like a tax refund. Paying every two weeks works too — see the Biweekly Mortgage Calculator.
One-Time Extra Payment: Enter a single lump sum you plan to pay.
Applied at Payment #: Enter which payment number gets that lump sum. Payment 60 is the end of year 5.
Table View: Choose year-by-year for a short table or monthly for every payment. Our Mortgage Amortization Calculator prints a full schedule as well.
Closing Costs tab
Home Price: Enter the purchase price of the home.
Down Payment: Enter your down payment as a percent. The loan amount fills in for you. Your loan-to-value ratio comes from these two numbers — see the LTV Calculator.
State: Pick your state to load typical transfer tax, attorney, and recording fees. Canadian and UK buyers can use the Land Transfer Tax Calculator or Stamp Duty Calculator.
First-Time Homebuyer: Choose Yes or No to see first-time buyer help in your results.
Discount Points Purchased: Enter how many points you will buy. Each point costs 1% of the loan and cuts the rate about 0.25%. Points also change your APR.
FHA Loan: Choose Yes to add the 1.75% upfront FHA mortgage insurance fee. See the FHA Loan Calculator, or the VA Loan Calculator if you qualify for a zero-down VA loan.
Seller Concessions: Enter dollars the seller agreed to pay toward your closing costs.
Origination Fee: Enter the lender's fee as a percent of the loan.
Application Fee: Enter what the lender charges to apply.
Underwriting Fee: Enter the fee to review and approve your loan.
Appraisal Fee: Enter the cost to have the home valued.
Home Inspection: Enter the cost of your home inspection.
Title Search & Insurance: Enter this cost as a percent of the home price.
Survey Fee: Enter the cost to map the property lines.
Attorney Fee: Enter your lawyer's fee. Some states need one, some do not.
Property Tax Escrow: Enter how many months of taxes the lender collects up front.
Prepaid Interest: Enter the days of interest owed from closing to your first payment. The Daily Interest Calculator shows how this per-day charge works.
Recording Fees: Enter what the county charges to record the deed.
Transfer Tax: Enter the tax on the sale as a percent of the price.
Rent vs. Buy tab
Annual Home Appreciation: Enter how much you think the home's value will grow each year.
Annual Maintenance: Enter yearly repair and upkeep costs as a percent of home value. 1% is common.
Selling Costs When You Leave: Enter agent fees and other sale costs as a percent of the sale price. The Home Sale Calculator breaks these out line by line.
Current Monthly Rent: Enter what you pay, or would pay, to rent instead. The Rent Affordability Calculator helps if you are still comparing rentals.
Annual Rent Increase: Enter how fast you expect rent to rise each year.
Renter's Insurance: Enter your monthly renter's insurance cost.
Security Deposit: Enter the deposit a landlord would hold.
Annual Investment Return: Enter the yearly return you would earn by investing your down payment instead. Model that growth with the Investment Calculator or the Compound Interest Calculator.
Marginal Tax Rate: Enter your top income tax rate to count mortgage interest and tax write-offs. Find your bracket with the Tax Bracket Calculator.
Years You Plan to Stay: Drag the slider to how long you will live in the home.
Buying a Home: What the Numbers Mean
Buying a home is the biggest purchase most people ever make. The price on the listing is only part of the story. Your real cost each month comes from your loan payment, taxes, insurance, and other fees. Knowing these parts before you shop helps you pick a price you can truly afford.
Your Monthly Mortgage Payment (PITI)
Lenders group your monthly housing cost into four parts, called PITI:
- Principal – the part that pays down what you borrowed.
- Interest – what the bank charges you to borrow. See how it adds up with the Mortgage Interest Calculator.
- Taxes – yearly property tax, split into 12 monthly parts.
- Insurance – homeowner's insurance that covers damage.
Two more costs can be added: HOA fees if your home is in a managed community, and PMI (private mortgage insurance) if your down payment is under 20% of the price. PMI protects the lender, not you, and it usually drops off once you owe 80% or less of the home's original price.
Down Payment and Loan Term
The down payment is the cash you pay up front. A bigger down payment means a smaller loan, a lower payment, and no PMI at 20% or more. The loan term is how many years you have to pay. A 30-year loan has a lower monthly payment but costs much more interest overall. A 15-year loan costs more each month but saves a large amount of interest. Our general Loan Calculator and Loan Payment Calculator let you test any term.
How Much House You Can Afford
Lenders use two simple rules based on your gross (before tax) income:
- 28% front-end rule – housing should take no more than 28% of your monthly income.
- 36% back-end rule – housing plus all other debt (car loans, student loans, credit cards) should stay under 36%.
These percents are called your debt-to-income ratio (DTI). Many lenders will stretch to 43%, but a lower DTI means more room in your budget for savings, repairs, and surprises. Lowering card balances first — with the Debt Snowball Calculator or Debt Avalanche Calculator — can raise how much home you qualify for.
Amortization and Extra Payments
Amortization is the schedule that shows how each payment splits between interest and principal. Early on, most of your money goes to interest. Later, more goes to principal. Paying a little extra each month goes straight to principal, which shortens the loan and can save tens of thousands of dollars in interest. The Amortization Calculator and Early Mortgage Payoff Calculator show the effect year by year.
Closing Costs
Closing costs are one-time fees you pay when the sale is final. They usually run about 2% to 5% of the home price and include lender fees, appraisal, home inspection, title insurance, transfer taxes, and prepaid taxes and insurance. You need this cash on top of your down payment, so plan for both. Sellers can sometimes agree to pay part of it, called a seller concession. Don't forget the Moving Cost Calculator for what comes after closing day, and keep an emergency fund intact.
Renting vs. Buying
Renting is cheaper in the short run because you skip the down payment and closing costs. Buying builds equity, which is the part of the home you own — track it later with the Home Equity Calculator. There is usually a break-even point—often around five to seven years—when owning becomes the cheaper choice. If you plan to move before then, renting and investing your savings may leave you better off. If you are buying to rent out, run the numbers through the Rental Property Calculator or the Cap Rate Calculator.
Costs Many Buyers Forget
- Maintenance and repairs: plan on about 1% of the home's value each year.
- Utilities: often higher than in an apartment. Estimate power bills with the Electricity Cost Calculator.
- Rising taxes and insurance: these grow over time, so your payment can climb even with a fixed-rate loan. The Inflation Calculator shows how fast costs creep up.
- Selling costs: about 6% of the sale price when you move on.
Rates and fees change often, so use quotes from real lenders when you get close to buying. Small changes in the interest rate can move your monthly payment by a lot, and later on a Refinance Calculator can tell you when a lower rate is worth the new closing costs.