Cobra Cost Calculator

Mortgage Repayment Calculator – Estimate Your Monthly Payments .mortgage-calc-container { max-width: 800px; margin: 20px auto; padding: 30px; background-color: #f9f9f9; border: 1px solid #ddd; border-radius: 10px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; color: #333; } .mortgage-calc-container h2 { margin-top: 0; color: #2c3e50; text-align: center; } .input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 25px; } .input-group { display: flex; flex-direction: column; } .input-group label { font-weight: 600; margin-bottom: 8px; font-size: 14px; } .input-group input { padding: 12px; border: 1px solid #ccc; border-radius: 5px; font-size: 16px; } .calc-btn { width: 100%; padding: 15px; background-color: #27ae60; color: white; border: none; border-radius: 5px; font-size: 18px; font-weight: bold; cursor: pointer; transition: background 0.3s ease; } .calc-btn:hover { background-color: #219150; } #mortgage-results { margin-top: 25px; padding: 20px; background-color: #fff; border-radius: 5px; border-left: 5px solid #27ae60; display: none; } .result-item { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 16px; } .result-item strong { color: #27ae60; font-size: 20px; } .mortgage-article { margin-top: 40px; line-height: 1.6; color: #444; } .mortgage-article h3 { color: #2c3e50; margin-top: 25px; } @media (max-width: 600px) { .input-grid { grid-template-columns: 1fr; } }

Mortgage Repayment Calculator

Enter your loan details below to calculate your estimated monthly mortgage payment.

Estimated Monthly Payment: $0.00

Total Principal Amount: $0.00
Total Interest Paid: $0.00
Total Cost of Loan: $0.00

How to Use the Mortgage Repayment Calculator

Buying a home is one of the most significant financial decisions you will ever make. Our Mortgage Repayment Calculator is designed to help you understand the long-term financial commitment of a home loan. By adjusting the variables above, you can see how different down payments and interest rates impact your monthly budget.

Key Components of Your Mortgage Payment

  • Principal: This is the actual amount of money you borrowed from the lender to purchase the home.
  • Interest: The cost charged by the lender for borrowing the principal, expressed as an annual percentage rate (APR).
  • Loan Term: The duration over which you agree to repay the loan (commonly 15 or 30 years).
  • Down Payment: The initial cash payment you make upfront. A higher down payment reduces your loan amount and monthly interest.

Realistic Mortgage Example

If you purchase a home for $400,000 with a 20% down payment ($80,000), you will need a loan of $320,000. At a fixed interest rate of 6.5% over a 30-year term, your monthly principal and interest payment would be approximately $2,022.62. Over the life of the loan, you would pay a total of $408,144 in interest.

Factors That Affect Your Monthly Payment

While this calculator provides a solid estimate of principal and interest, remember that your actual monthly "PITI" (Principal, Interest, Taxes, and Insurance) payment may also include:

  1. Property Taxes: Levied by your local government based on the home's value.
  2. Homeowners Insurance: Required by lenders to protect the property against damage.
  3. Private Mortgage Insurance (PMI): Usually required if your down payment is less than 20%.
  4. HOA Fees: Fees paid to a Homeowners Association for community maintenance.
function calculateMortgage() { var homePrice = parseFloat(document.getElementById('homePrice').value); var downPayment = parseFloat(document.getElementById('downPayment').value); var annualInterestRate = parseFloat(document.getElementById('interestRate').value); var loanTermYears = parseFloat(document.getElementById('loanTerm').value); // Basic Validation if (isNaN(homePrice) || isNaN(downPayment) || isNaN(annualInterestRate) || isNaN(loanTermYears) || homePrice <= 0) { alert("Please enter valid positive numbers for all fields."); return; } var principal = homePrice – downPayment; if (principal <= 0) { alert("Down payment cannot be greater than or equal to the home price."); return; } var monthlyInterestRate = annualInterestRate / 100 / 12; var numberOfPayments = loanTermYears * 12; var monthlyPayment = 0; // Formula: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1 ] if (monthlyInterestRate === 0) { monthlyPayment = principal / numberOfPayments; } else { var x = Math.pow(1 + monthlyInterestRate, numberOfPayments); monthlyPayment = (principal * x * monthlyInterestRate) / (x – 1); } var totalCost = monthlyPayment * numberOfPayments; var totalInterest = totalCost – principal; // Display Results document.getElementById('mortgage-results').style.display = 'block'; document.getElementById('monthlyPaymentDisplay').innerText = '$' + monthlyPayment.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('principalDisplay').innerText = '$' + principal.toLocaleString(); document.getElementById('totalInterestDisplay').innerText = '$' + totalInterest.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('totalCostDisplay').innerText = '$' + totalCost.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); }

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