Home Affordability Calculator
Estimate your maximum home purchase price based on your gross household income, monthly debt obligations, down payment savings, and standard lender debt-to-income (DTI) ratio guidelines.
Independent U.S. Home Loan Education & Tools
Mortgage Payment Calculator
Estimate your monthly principal and interest costs accurately using standard amortization formulas. Compare 15-year and 30-year terms to make informed financing decisions for your home.
Loan Parameters
$400,000
$
$80,000 (20%)
$
6.50%
%
Loan Term Duration
Estimated Monthly Payment
Principal & Interest Only
$2,022.62/mo
30-Year Fixed Amortization
Loan Principal (43.9%)Total Interest (56.1%)
Loan Principal Amount:$320,000.00
Total Interest Over 30 Years:$408,142.36
Total Amount Paid (P + I):$728,142.36
Comparison Insight: Switching to a 15-Year term would cost $2,787.54/mo (+$764.92/mo) but saves $226,384.52 in total lifetime interest.
Explore All Mortgage Calculators
Access our complete suite of interactive home loan calculators designed to help American homebuyers make confident, mathematically grounded decisions.
Mortgage Payoff Calculator
Discover how extra monthly principal payments accelerate your loan payoff date by years and save tens of thousands in cumulative mortgage interest.
Down Payment Calculator
Calculate your exact down payment requirement, assess your remaining savings gap, and analyze the 20% Private Mortgage Insurance (PMI) threshold.
Home Affordability Calculator
Estimate how much house you can afford based on your gross income, monthly debts, and standard U.S. 28/36 debt-to-income (DTI) underwriting guidelines.
Financial Profile
$100,000/yr
$
$500/mo
$
$50,000
$
6.50%
%
Target Loan Duration
Affordability Estimate
Estimated Affordable Home Price
$419,159
Max Loan: $369,159 + $50,000 Down
Gross Monthly Income:$8,333.33/mo
Max Allowable Housing Payment (P&I):$2,333.33/mo
28% Front-End Housing Guideline:$2,333.33/mo
36% Back-End (Less Current Debts):$2,500.00/mo
Underwriting Hypotheses & Methodology:
- 28/36 DTI Rule: Uses conventional guidelines capping monthly housing payment at 28% of gross income and total debt service at 36%.
- Principal & Interest Capacity: Converts your allowable monthly housing payment into maximum loan capacity using the inverse amortization formula for your entered interest rate and term.
- Escrow Notice: Real mortgage approval will include property taxes, homeowner's insurance, PMI, and credit rating, which may reduce your final borrowing limit.
Mortgage Payoff Calculator
Use this extra mortgage payment calculator to see how adding principal each month accelerates your loan payoff date and slashes total lifetime interest.
Loan & Payment Details
$250,000
$
6.50%
%
$1,580.17/mo
$
+$200/mo
$
Payoff Acceleration Results
Total Interest Saved
$97,618.14
Paid Off 8 Years and 0 Months Earlier
Baseline Payoff
30y 1m
$1,580.17/mo
Interest: $318,861.27
With Extra Payment
22y 1m
$1,780.17/mo
Interest: $221,243.12
Remaining Balance:$250,000.00
Extra Monthly Principal:+$200.00/mo
Time Shortened:96 total months (8 yrs, 0 mos)
Down Payment Calculator
Calculate your exact target down payment amount, measure your savings progress, and discover how much you still need to save to purchase your desired home.
Savings Targets
$400,000
$
20.0%
%
$35,000
$
Standard Down Payment Tiers for this Price:
3%
$12,000
5%
$20,000
10%
$40,000
20%
$80,000
Target Down Payment Summary
Required Down Payment (20%)
$80,000
Savings Progress: 43.8%$45,000 Remaining
Amount Currently Saved:$35,000
Still Needed to Reach Goal:$45,000
Financed Loan Amount:$320,000
Private Mortgage Insurance (PMI) Threshold:
✓ Putting down 20% or more exempts conventional mortgage borrowers from monthly Private Mortgage Insurance (PMI), keeping your monthly payment as low as possible.
Essential Reading for U.S. Homebuyers
Explore detailed mathematical breakdowns, loan scenarios, and strategic advice to prepare for your home financing journey in today's housing market.
Mortgage Payment Explained: What Your Monthly Payment Includes
A detailed breakdown of what makes up your monthly mortgage obligation in the United States—exploring principal, interest, property taxes, homeowners hazard insurance, and mortgage insurance.
How Much Is the Monthly Payment on a $300,000 Mortgage?
A step-by-step mathematical breakdown for financing a $300,000 home purchase with $60,000 down, analyzing monthly principal and interest, lifetime amortization, and total escrow costs.
How Much Down Payment Do You Need to Buy a House?
Everything you need to know about down payment requirements in the United States: minimums by loan program, 3% to 20% comparisons, and Private Mortgage Insurance (PMI) cancellation rules.
15-Year vs. 30-Year Mortgage: Costs, Payments and Trade-Offs
A direct mathematical comparison of 15-year and 30-year fixed-rate mortgages on the exact same loan balance, analyzing cash-flow flexibility vs. hundreds of thousands in interest savings.