#mortgage-calc-plugin {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
max-width: 800px;
margin: 20px auto;
color: #333;
line-height: 1.6;
}
#mortgage-calc-plugin .calc-container {
display: flex;
flex-wrap: wrap;
gap: 30px;
background: #f9f9f9;
padding: 30px;
border-radius: 8px;
box-shadow: 0 4px 15px rgba(0,0,0,0.05);
border: 1px solid #e1e1e1;
}
#mortgage-calc-plugin .calc-inputs {
flex: 1;
min-width: 300px;
}
#mortgage-calc-plugin .calc-results {
flex: 1;
min-width: 300px;
background: #fff;
padding: 25px;
border-radius: 8px;
border: 1px solid #eee;
display: flex;
flex-direction: column;
justify-content: center;
}
#mortgage-calc-plugin h2 {
margin-top: 0;
color: #2c3e50;
font-size: 24px;
margin-bottom: 20px;
}
#mortgage-calc-plugin .form-group {
margin-bottom: 15px;
}
#mortgage-calc-plugin label {
display: block;
margin-bottom: 5px;
font-weight: 600;
font-size: 14px;
}
#mortgage-calc-plugin input[type="number"],
#mortgage-calc-plugin select {
width: 100%;
padding: 10px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 16px;
box-sizing: border-box;
}
#mortgage-calc-plugin .input-row {
display: flex;
gap: 10px;
}
#mortgage-calc-plugin .input-col {
flex: 1;
}
#mortgage-calc-plugin button.calc-btn {
background-color: #0073aa;
color: white;
border: none;
padding: 12px 20px;
font-size: 16px;
font-weight: bold;
border-radius: 4px;
cursor: pointer;
width: 100%;
margin-top: 10px;
transition: background-color 0.3s;
}
#mortgage-calc-plugin button.calc-btn:hover {
background-color: #005177;
}
#mortgage-calc-plugin .result-row {
display: flex;
justify-content: space-between;
margin-bottom: 12px;
padding-bottom: 12px;
border-bottom: 1px solid #eee;
}
#mortgage-calc-plugin .result-row.total {
border-bottom: none;
margin-top: 10px;
padding-top: 10px;
border-top: 2px solid #0073aa;
font-size: 1.2em;
color: #0073aa;
}
#mortgage-calc-plugin .result-label {
color: #666;
}
#mortgage-calc-plugin .result-value {
font-weight: 700;
color: #2c3e50;
}
#mortgage-calc-plugin .seo-content {
margin-top: 40px;
padding: 20px;
background: #fff;
}
#mortgage-calc-plugin .seo-content h2 {
font-size: 22px;
border-bottom: 2px solid #0073aa;
padding-bottom: 10px;
margin-bottom: 20px;
}
#mortgage-calc-plugin .seo-content h3 {
font-size: 18px;
margin-top: 25px;
color: #2c3e50;
}
#mortgage-calc-plugin .seo-content ul {
padding-left: 20px;
}
#mortgage-calc-plugin .seo-content li {
margin-bottom: 10px;
}
function calculateMortgage() {
// Get inputs
var price = parseFloat(document.getElementById('mc-home-price').value);
var downPayment = parseFloat(document.getElementById('mc-down-payment').value);
var interestRate = parseFloat(document.getElementById('mc-interest-rate').value);
var years = parseInt(document.getElementById('mc-loan-term').value);
var taxYearly = parseFloat(document.getElementById('mc-property-tax').value);
var insuranceYearly = parseFloat(document.getElementById('mc-insurance').value);
// Validation
if (isNaN(price) || isNaN(downPayment) || isNaN(interestRate) || isNaN(years)) {
alert("Please enter valid numbers for all fields.");
return;
}
// Calculations
var principal = price – downPayment;
var monthlyInterest = (interestRate / 100) / 12;
var numberOfPayments = years * 12;
var monthlyPrincipalInterest = 0;
if (interestRate === 0) {
monthlyPrincipalInterest = principal / numberOfPayments;
} else {
// Formula: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1 ]
monthlyPrincipalInterest = principal *
(monthlyInterest * Math.pow(1 + monthlyInterest, numberOfPayments)) /
(Math.pow(1 + monthlyInterest, numberOfPayments) – 1);
}
var monthlyTax = taxYearly / 12;
var monthlyInsurance = insuranceYearly / 12;
var totalMonthlyPayment = monthlyPrincipalInterest + monthlyTax + monthlyInsurance;
var totalAmountPaid = (monthlyPrincipalInterest * numberOfPayments);
var totalInterestPaid = totalAmountPaid – principal;
var grandTotalCost = totalAmountPaid + (monthlyTax * numberOfPayments) + (monthlyInsurance * numberOfPayments);
// Format Currency Function
function formatMoney(amount) {
return "$" + amount.toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,');
}
// Output Results
document.getElementById('mc-result-pi').innerHTML = formatMoney(monthlyPrincipalInterest);
document.getElementById('mc-result-tax').innerHTML = formatMoney(monthlyTax);
document.getElementById('mc-result-ins').innerHTML = formatMoney(monthlyInsurance);
document.getElementById('mc-result-total').innerHTML = formatMoney(totalMonthlyPayment);
document.getElementById('mc-result-total-interest').innerHTML = formatMoney(totalInterestPaid);
document.getElementById('mc-result-total-cost').innerHTML = formatMoney(grandTotalCost);
}
// Run calculation on load to populate initial values
window.onload = function() {
calculateMortgage();
};
Mortgage Calculator
30 Years
20 Years
15 Years
10 Years
Estimated Payments
Principal & Interest:
$0.00
Property Tax (Monthly):
$0.00
Home Insurance (Monthly):
$0.00
Total Monthly:
$0.00
Total Interest Paid:
$0.00
Total Cost of Loan:
$0.00
Understanding Your Mortgage Payment
Purchasing a home is one of the most significant financial decisions you will make. This Mortgage Payment Calculator helps you estimate your monthly financial commitment by breaking down the key components of a mortgage payment: Principal, Interest, Taxes, and Insurance (often referred to as PITI).
Key Factors Affecting Your Mortgage
- Principal: This is the money you borrowed. Each monthly payment reduces this balance, building your equity in the home.
- Interest Rate: The cost of borrowing money. Even a small difference in the interest rate (e.g., 0.5%) can save or cost you tens of thousands of dollars over the life of a 30-year loan.
- Loan Term: The duration of your loan. A 30-year term generally offers lower monthly payments but higher total interest costs compared to a 15-year term.
- Escrow Costs: Property taxes and homeowners insurance are often collected by your lender in monthly installments and held in an escrow account to pay the bills when they are due.
How to Lower Your Monthly Payment
If the estimated payment is higher than your budget allows, consider these strategies:
- Increase Your Down Payment: Putting more money down reduces the principal loan amount and may eliminate the need for Private Mortgage Insurance (PMI).
- Improve Your Credit Score: A higher credit score often qualifies you for a lower interest rate.
- Shop for Insurance: Homeowners insurance rates vary significantly by provider. Shopping around can reduce your monthly escrow obligation.
Why Calculate Before You Buy?
Many first-time homebuyers focus solely on the list price of a home. However, the monthly carrying cost is what impacts your daily budget. By using this calculator, you can determine exactly how much house you can afford based on your current income and expenses, ensuring you don't overextend yourself financially.