Usaa Used Car Loan Rates Calculator

Mortgage Payment Calculator

.calc-container {
max-width: 800px;
margin: 0 auto;
font-family: -apple-system, BlinkMacSystemFont, “Segoe UI”, Roboto, Helvetica, Arial, sans-serif;
color: #333;
line-height: 1.6;
padding: 20px;
background: #f9f9f9;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.calc-header {
text-align: center;
margin-bottom: 30px;
}
.calc-header h2 {
color: #2c3e50;
margin: 0;
}
.calc-wrapper {
display: flex;
flex-wrap: wrap;
gap: 20px;
}
.calc-inputs {
flex: 1;
min-width: 300px;
background: #fff;
padding: 20px;
border-radius: 8px;
border: 1px solid #e1e1e1;
}
.calc-results {
flex: 1;
min-width: 300px;
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color: #fff;
padding: 20px;
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flex-direction: column;
justify-content: center;
}
.form-group {
margin-bottom: 15px;
}
.form-group label {
display: block;
margin-bottom: 5px;
font-weight: 600;
font-size: 14px;
}
.input-wrapper {
position: relative;
display: flex;
align-items: center;
}
.input-prefix, .input-suffix {
padding: 10px;
background: #eee;
color: #555;
border: 1px solid #ccc;
font-size: 14px;
}
.input-prefix {
border-right: none;
border-radius: 4px 0 0 4px;
}
.input-suffix {
border-left: none;
border-radius: 0 4px 4px 0;
}
.form-control {
width: 100%;
padding: 10px;
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border-radius: 0;
}
.form-control:first-child { border-radius: 4px 0 0 4px; }
.form-control:last-child { border-radius: 0 4px 4px 0; }
.input-wrapper .form-control {
border-radius: 0;
}
button.calc-btn {
width: 100%;
padding: 12px;
background: #27ae60;
color: white;
border: none;
border-radius: 4px;
font-size: 18px;
font-weight: bold;
cursor: pointer;
transition: background 0.3s;
margin-top: 10px;
}
button.calc-btn:hover {
background: #219150;
}
.result-row {
display: flex;
justify-content: space-between;
margin-bottom: 15px;
border-bottom: 1px solid rgba(255,255,255,0.1);
padding-bottom: 10px;
}
.result-row:last-child {
border-bottom: none;
margin-bottom: 0;
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.result-label {
font-size: 14px;
opacity: 0.9;
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.result-value {
font-size: 18px;
font-weight: bold;
}
.main-result {
text-align: center;
margin-bottom: 25px;
padding-bottom: 20px;
border-bottom: 2px solid rgba(255,255,255,0.2);
}
.main-result-label {
font-size: 16px;
margin-bottom: 5px;
text-transform: uppercase;
letter-spacing: 1px;
}
.main-result-value {
font-size: 36px;
font-weight: 800;
color: #2ecc71;
}
.calc-article {
margin-top: 40px;
background: #fff;
padding: 30px;
border-radius: 8px;
border: 1px solid #e1e1e1;
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.calc-article h2 {
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border-bottom: 2px solid #eee;
padding-bottom: 10px;
margin-top: 30px;
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margin-top: 25px;
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margin-bottom: 15px;
padding-left: 20px;
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.calc-article li {
margin-bottom: 8px;
color: #555;
}
@media (max-width: 600px) {
.calc-wrapper {
flex-direction: column;
}
}

Mortgage Payment Calculator

Estimate your monthly payments, including principal, interest, taxes, and insurance.

$

$

%

30 Years
20 Years
15 Years
10 Years

$

$

Total Monthly Payment
$0.00

Principal & Interest:
$0.00
Property Tax (Mo):
$0.00
Home Insurance (Mo):
$0.00
Loan Amount:
$0.00
Total Interest Paid:
$0.00
Payoff Date:

Understanding Your Mortgage Calculation

When planning to purchase a home, understanding exactly how much you will pay each month is crucial for financial stability. This Mortgage Payment Calculator helps you estimate your monthly financial obligation by factoring in not just the loan repayment, but also the escrow costs associated with homeownership.

How Is Your Monthly Payment Calculated?

A standard mortgage payment consists of four primary components, often referred to as PITI:

  • Principal: The portion of your payment that goes toward paying down the original amount you borrowed.
  • Interest: The cost of borrowing money, paid to the lender. In the early years of a mortgage, a larger portion of your payment goes toward interest.
  • Taxes: Property taxes assessed by your local government. These are typically divided by 12 and collected monthly into an escrow account.
  • Insurance: Homeowners insurance protects your property against damage. Like taxes, the annual premium is usually divided into monthly installments.

The Impact of Interest Rates and Loan Terms

Even a small difference in interest rates can significantly affect your monthly payment and the total cost of the loan. For example, a 1% increase in the interest rate on a $300,000 loan can increase your monthly payment by hundreds of dollars and your total interest paid by tens of thousands over 30 years.

Similarly, the loan term matters. A 15-year mortgage will have higher monthly payments than a 30-year mortgage, but you will pay significantly less in total interest because the loan is paid off twice as fast.

Why Use a Mortgage Calculator?

Using a calculator allows you to test different scenarios before speaking with a lender. You can determine:

  • How much house you can afford based on your monthly budget.
  • How a larger down payment affects your monthly obligation.
  • Whether a shorter loan term is financially feasible for you.

Example Scenario

If you purchase a home for $350,000 with a 20% down payment ($70,000), your loan amount will be $280,000. Assuming a 6.5% interest rate over 30 years, your principal and interest payment would be approximately $1,770 per month. Adding property taxes and insurance brings the total monthly cost higher, giving you a realistic picture of affordability.

function calculateMortgage() {
// 1. Get Input Values
var homePrice = parseFloat(document.getElementById(‘homePrice’).value);
var downPayment = parseFloat(document.getElementById(‘downPayment’).value);
var interestRate = parseFloat(document.getElementById(‘interestRate’).value);
var loanTermYears = parseInt(document.getElementById(‘loanTerm’).value);
var annualTax = parseFloat(document.getElementById(‘propertyTax’).value);
var annualIns = parseFloat(document.getElementById(‘homeInsurance’).value);
// 2. Validate Inputs
if (isNaN(homePrice) || homePrice <= 0) {
alert("Please enter a valid Home Price.");
return;
}
if (isNaN(downPayment) || downPayment < 0) {
downPayment = 0;
}
if (isNaN(interestRate) || interestRate < 0) {
alert("Please enter a valid Interest Rate.");
return;
}
if (isNaN(annualTax)) annualTax = 0;
if (isNaN(annualIns)) annualIns = 0;
// 3. Perform Calculations
var loanAmount = homePrice – downPayment;
if (loanAmount <= 0) {
alert("Down payment cannot be greater than or equal to the home price.");
return;
}
// Monthly Interest Rate (r)
var monthlyRate = (interestRate / 100) / 12;
// Total Number of Payments (n)
var numberOfPayments = loanTermYears * 12;
// Monthly Principal & Interest (M) formula: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1 ]
var monthlyPI = 0;
if (interestRate === 0) {
monthlyPI = loanAmount / numberOfPayments;
} else {
monthlyPI = loanAmount * (monthlyRate * Math.pow(1 + monthlyRate, numberOfPayments)) / (Math.pow(1 + monthlyRate, numberOfPayments) – 1);
}
// Monthly Escrow items
var monthlyTax = annualTax / 12;
var monthlyIns = annualIns / 12;
// Total Monthly Payment
var totalMonthly = monthlyPI + monthlyTax + monthlyIns;
// Total Interest Paid
var totalCost = monthlyPI * numberOfPayments;
var totalInterest = totalCost – loanAmount;
// Payoff Date Calculation
var today = new Date();
var payoffDate = new Date(today.setMonth(today.getMonth() + numberOfPayments));
var options = { month: 'long', year: 'numeric' };
var payoffDateString = payoffDate.toLocaleDateString('en-US', options);
// 4. Update UI
// Format helper
var formatter = new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
minimumFractionDigits: 2
});
document.getElementById('totalMonthlyDisplay').innerText = formatter.format(totalMonthly);
document.getElementById('piDisplay').innerText = formatter.format(monthlyPI);
document.getElementById('taxDisplay').innerText = formatter.format(monthlyTax);
document.getElementById('insDisplay').innerText = formatter.format(monthlyIns);
document.getElementById('loanAmountDisplay').innerText = formatter.format(loanAmount);
document.getElementById('totalInterestDisplay').innerText = formatter.format(totalInterest);
document.getElementById('payoffDateDisplay').innerText = payoffDateString;
}
// Initial Calculation on Load
window.onload = function() {
calculateMortgage();
};

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