Calculatrice hypothécaire
Comparer les termes de 15 vs 30 ans avec amortissement complet
Optional: Additional Costs
National average: ~1.1%
Affordability Check (28% Rule)
Cette calculatrice fournit des estimations à titre informatif uniquement. Les résultats réels peuvent varier. Consultez un conseiller financier pour des conseils personnalisés.
Monthly Payment Breakdown
Note: This calculator is for illustrative purposes only and does not constitute financial advice.Actual mortgage payments may vary based on credit score, lender fees, and other factors.The 28% rule is a general guideline; consult a financial advisor for personalized advice.
Sources et méthodologie
M = P[r(1+r)ⁿ] / [(1+r)ⁿ-1]Standard amortization formula: P=principal, r=monthly rate, n=payments
Property tax and insurance are additional escrow amounts.
Votre prochaine étape
How to Use the Mortgage Calculator
What is a Mortgage Calculator?
A mortgage calculator estimates your monthly house payment including principal, interest, property taxes, homeowner's insurance, and private mortgage insurance (PMI). Understanding your total housing cost—not just the loan payment—is essential for budgeting and determining how much house you can afford.
The Mortgage Payment Formula
Monthly principal and interest is calculated using:
M = P × [r(1+r)^n] ÷ [(1+r)^n - 1]
Then add monthly amounts for taxes, insurance, and PMI:
Total Payment = Principal & Interest + (Annual Property Tax ÷ 12) + (Annual Insurance ÷ 12) + Monthly PMI
For a $350,000 home with 20% down, 6.5% rate, 30 years: ~$1,771/month P&I + ~$292 taxes + ~$100 insurance = ~$2,163/month total
Understanding Payment Components
- Principal: The portion reducing your loan balance
- Interest: The cost of borrowing (front-loaded in early years)
- Property Tax: Typically 0.5% to 2.5% of home value annually, varies by location
- Homeowner's Insurance: Usually $1,000-$3,000/year for typical homes
- PMI: Required for down payments under 20%, costs 0.3%-1.5% annually
- HOA Fees: Additional monthly fees for condos/planned communities (not included here)
Real-World Mortgage Examples
- $250,000 home, 20% down, 6.5%, 30 years: $1,265/month P&I, ~$1,600 total with taxes/insurance
- $350,000 home, 10% down, 6.5%, 30 years: $1,991/month P&I + $133 PMI, ~$2,500 total
- $450,000 home, 20% down, 6.5%, 15 years: $3,133/month P&I, ~$3,600 total (pays off faster, saves $200K+ interest)
- $500,000 home, 5% down, 7%, 30 years: $3,161/month P&I + $395 PMI, ~$4,000 total
15-Year vs 30-Year Mortgage
On a $280,000 loan at 6.5%:
- 30-year: $1,770/month, $357,000 total interest
- 15-year: $2,441/month, $159,000 total interest
- Savings with 15-year: $198,000 less interest, but $671/month higher payments
How Down Payment Affects Your Mortgage
For a $400,000 home at 6.5%:
- 5% down ($20K): $380,000 loan, ~$2,400/month + PMI (~$317/month)
- 10% down ($40K): $360,000 loan, ~$2,275/month + PMI (~$225/month)
- 20% down ($80K): $320,000 loan, ~$2,023/month, no PMI
- PMI savings: 20% down saves you $225-$317/month until you reach 20% equity
The 28% Rule for Affordability
Financial experts recommend your housing costs (mortgage + taxes + insurance) shouldn't exceed 28% of gross monthly income:
- $60,000 income: Max housing = $1,400/month → ~$225,000 home
- $80,000 income: Max housing = $1,867/month → ~$300,000 home
- $100,000 income: Max housing = $2,333/month → ~$375,000 home
- $120,000 income: Max housing = $2,800/month → ~$450,000 home
Extra Payments Save Thousands
On a $300,000 mortgage at 6.5% for 30 years:
- Standard payments: $1,896/month, $382,000 total interest, paid off in 2055
- +$200/month extra: $100,000 less interest, paid off 7 years early
- +$500/month extra: $175,000 less interest, paid off 13 years early
- One extra payment/year: $75,000 less interest, paid off 5 years early
Related Mortgage Tools
- Amortization Calculator – See your full payment schedule year by year
- Loan Calculator – Compare different loan scenarios
- Compound Interest Calculator – See how your down payment could grow if invested instead
- Paycheck Calculator – Know your take-home pay to budget for housing
About Our Calculations
Our mortgage calculator uses standard amortization formulas used by lenders. We display current average rates from the Federal Reserve (FRED), but your actual rate depends on credit score (typically 740+ for best rates), debt-to-income ratio, loan type (conventional, FHA, VA, USDA), and current market conditions. Tax and insurance estimates are averages—verify local property tax rates and get insurance quotes for accurate planning.
Questions fréquemment posées
A common guideline is 3-4x your annual income. With household income of $80,000, you could afford a home around $240,000-$320,000. However, actual affordability depends on down payment, debts, credit score, interest rates, and local property taxes.
A typical mortgage payment includes PITI: Principal (loan balance), Interest (cost of borrowing), Taxes (property taxes), and Insurance (homeowners and possibly PMI). Your escrow account holds funds for taxes and insurance.
20% down is traditional and avoids PMI, but many programs accept 3-5% down. FHA loans require 3.5% minimum. VA and USDA loans offer 0% down for eligible borrowers. Larger down payments mean lower monthly payments and interest costs.
PMI (Private Mortgage Insurance) protects lenders when down payment is under 20%, typically costing 0.5-1% of loan value annually. Avoid it by putting 20% down, using a piggyback loan, or choosing lender-paid PMI. PMI is removable at 20% equity.
One point equals 1% of your loan amount and typically reduces your rate by 0.25%. On a $300,000 loan, 1 point costs $3,000 and might reduce rate from 7% to 6.75%, saving $50/month. Points make sense if you keep the loan long enough to break even.
15-year mortgages have higher payments but much lower total interest. A $300,000 loan at 6.5% costs $320,194 in interest over 30 years vs. $112,432 over 15 years - a savings of over $200,000. Choose based on your budget and goals.
Closing costs typically run 2-5% of the loan amount, including origination fees, appraisal, title insurance, and prepaid taxes/insurance. On a $300,000 loan, expect $6,000-$15,000 in closing costs. Negotiate with sellers or lenders to reduce these.
Restez informé
Recevez de nouvelles calculatrices et des conseils dans votre boîte mail.