Mortgage Payment Calculator
Mortgage Results
| Date | Home Price | Down Payment | Monthly Payment | Rate | Currency | Actions |
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Mortgage Payment Calculator: Complete Guide
A mortgage calculator is your financial planning tool that helps you estimate your monthly home loan payments. It considers all the key factors that affect your mortgage, including the home price, down payment, interest rate, and loan term.
Think of it as your personal financial assistant that helps you answer:
- How much house can I afford?
- What will my monthly payments be?
- How much interest will I pay over time?
- Should I make a larger down payment?
Try Our Mortgage Calculator
Get instant calculations for your dream home. Input your details and see your potential monthly payments in seconds!
Understanding Each Input Field
1. Home Price ($)
What it means:
The total purchase price of the home you want to buy.
Example:
A single-family home listed for $350,000
Impact:
Higher home price = Higher monthly payments
2. Down Payment ($)
What it means:
The initial amount you pay upfront when purchasing the home.
Example:
A 20% down payment on a $350,000 home = $70,000
Why it matters:
Larger down payments reduce your loan amount, lower monthly payments, and may eliminate PMI.
3. Loan Term (Years)
What it means:
How long you'll take to pay back the loan.
Common options:
- 30 years: Lower monthly payments, more total interest
- 15 years: Higher monthly payments, less total interest
4. Interest Rate (%)
What it means:
The cost of borrowing money, expressed as a percentage of the loan amount.
Example:
A 5.5% interest rate means you pay $5.50 in interest for every $100 borrowed each year.
Impact:
A 1% difference can change your monthly payment by $200+ on a $300,000 loan.
5. Property Tax ($/year)
What it means:
Annual taxes paid to your local government based on your home's value.
Example:
A $350,000 home with 1% property tax = $3,500/year ($292/month)
6. Home Insurance ($/year)
What it means:
Annual cost to insure your home against damage or loss.
Example:
Average annual premium for a $350,000 home = $1,200-$1,800/year
The Mortgage Formula Explained
M = P × [r(1+r)^n] ÷ [(1+r)^n – 1]
Where:
M = Monthly payment
P = Principal loan amount (Home Price - Down Payment)
r = Monthly interest rate (Annual rate ÷ 12)
n = Total number of payments (Loan term in years × 12)
Step-by-Step Calculation Example
Let's calculate a mortgage for a $350,000 home:
- Home Price: $350,000
- Down Payment (20%): $70,000
- Loan Amount (P): $350,000 - $70,000 = $280,000
- Interest Rate: 5.5% annually
- Monthly Rate (r): 5.5% ÷ 12 = 0.4583% (0.004583)
- Loan Term: 30 years (360 months)
- Number of Payments (n): 30 × 12 = 360
Plug into formula:
M = $280,000 × [0.004583(1+0.004583)^360] ÷ [(1+0.004583)^360 – 1]
Result: $1,589.36 per month (Principal & Interest only)
Key Features of Our Mortgage Calculator
45+ Currencies
Calculate in your local currency with real-time formatting.
Auto-Save
Your inputs are automatically saved so you never lose your calculations.
Visual Breakdown
See exactly how much goes to principal, interest, taxes, and insurance.
Export Results
Save calculations as PDF, HTML, or text files.
Understanding Your Results
Sample Calculation Results
For a $350,000 home with 20% down, 5.5% interest over 30 years:
- Monthly Payment (P&I): $1,589.36
- Total Monthly Cost: $1,981.36 (with taxes & insurance)
- Total Interest Paid: $292,169.60 over 30 years
- Loan Amount: $280,000
- Total Cost of Home: $713,169.60
Mortgage Planning Tips
Set Realistic Goals
Aim for a monthly payment that's comfortable even if interest rates rise.
Save for More Than Down Payment
Budget for closing costs (2-5% of home price) and moving expenses.
Consider Future Changes
Factor in job changes, family growth, or home value appreciation.
Get Pre-Approved
Know exactly how much you can borrow before house hunting.
Common Mistakes to Avoid
- Forgetting PMI: If your down payment is less than 20%, PMI adds to your monthly payment.
- Ignoring property taxes: Taxes can add hundreds to your monthly payment.
- Not shopping rates: A 1% rate difference can cost you thousands over the loan term.
- Overlooking closing costs: Budget 2-5% of the home price for closing costs.
Frequently Asked Questions
PMI is required if your down payment is less than 20% of the home price. It protects the lender and typically costs 0.5% to 1% of your loan amount annually.
A 1% change in interest rate can change your monthly payment by about $60 for every $100,000 borrowed.
30-year: lower payments, more flexibility. 15-year: pay off faster, less interest, higher payments.
Most lenders recommend housing costs not exceed 28% of gross monthly income, and total debt not exceed 36%.
Interest rate is the cost of borrowing. APR includes interest + fees + other costs.
Larger down payments reduce monthly payments, eliminate PMI, and reduce total interest.
Additional fees paid at closing, typically 2% to 5% of the home price.
Yes! Extra payments go directly to principal, reducing total interest and shortening your loan term.
A table showing how each payment is split between principal and interest over the life of the loan.
Excellent (740+): Best rates; Good (680-739): Good rates; Fair (620-679): Higher rates.
Recalculate when interest rates change, your income changes, or your down payment changes.
Our calculator focuses on mortgage payments. Add HOA fees separately for accurate budgeting.
Our calculator uses standard mortgage formulas, making it highly accurate for fixed-rate loans.
Fixed rate: same payment for entire term. Adjustable: rate changes periodically based on market conditions.
Yes! Enter your current loan details to see if refinancing could lower your payments.