Sallie Mae Student Loan Interest Rate Calculator

Mortgage Payment Calculator .mortgage-calculator-wrapper { max-width: 800px; margin: 0 auto; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; } .calc-container { background: #f9f9f9; border: 1px solid #e0e0e0; border-radius: 8px; padding: 25px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); margin-bottom: 40px; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; } @media (max-width: 600px) { .calc-grid { grid-template-columns: 1fr; } } .input-group { margin-bottom: 15px; } .input-group label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 14px; color: #555; } .input-group input, .input-group select { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; font-size: 16px; box-sizing: border-box; } .input-group input:focus { border-color: #0073aa; outline: none; } .calc-btn { grid-column: 1 / -1; background-color: #0073aa; color: white; border: none; padding: 15px; font-size: 18px; font-weight: bold; border-radius: 4px; cursor: pointer; transition: background-color 0.3s; width: 100%; margin-top: 10px; } .calc-btn:hover { background-color: #005177; } .results-box { grid-column: 1 / -1; background-color: #fff; border: 1px solid #ddd; border-radius: 4px; padding: 20px; margin-top: 20px; display: none; } .result-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid #eee; } .result-row:last-child { border-bottom: none; font-weight: bold; font-size: 1.2em; color: #0073aa; } .calc-content h2 { color: #2c3e50; border-bottom: 2px solid #0073aa; padding-bottom: 10px; margin-top: 30px; } .calc-content h3 { color: #34495e; margin-top: 25px; } .calc-content ul { margin-bottom: 20px; } .calc-content li { margin-bottom: 10px; } .error-msg { color: red; font-size: 14px; margin-top: 5px; display: none; }
30 Years 20 Years 15 Years 10 Years
Please enter valid numeric values for all fields.
Principal & Interest: $0.00
Monthly Property Tax: $0.00
Monthly Home Insurance: $0.00
Total Monthly Payment: $0.00
Total Loan Amount:

Understanding Your Mortgage Payment

Buying a home is one of the largest financial decisions you will make. This Mortgage Payment Calculator is designed to help you understand exactly how much house you can afford by breaking down the monthly costs associated with homeownership. Unlike simple calculators that only show the loan repayment, our tool factors in the critical escrow components like property taxes and homeowners insurance.

Components of a Monthly Mortgage Payment

When you write a check to your lender every month, it typically covers four distinct costs, often abbreviated as PITI:

  • Principal: The portion of your payment that goes toward paying down the loan balance (the actual money you borrowed).
  • Interest: The fee charged by the bank for lending you the money. In the early years of a mortgage, a higher percentage of your payment goes toward interest.
  • Taxes: Property taxes assessed by your local government. Lenders often collect this monthly and hold it in an escrow account to pay the bill when it's due.
  • Insurance: Homeowners insurance protects your property against damage. Like taxes, this is usually collected monthly into an escrow account.

How Interest Rates Affect Your Payment

Even a small difference in your interest rate can significantly impact your monthly payment and the total cost of the loan. For example, on a $300,000 loan, the difference between a 6% and a 7% interest rate can change your monthly payment by nearly $200 and cost you tens of thousands of dollars over the life of a 30-year loan.

Choosing a Loan Term: 15 vs. 30 Years

The term of your loan determines how long you have to pay it back. A 30-year mortgage offers lower monthly payments, making homes more affordable month-to-month, but you will pay significantly more in interest over the life of the loan. A 15-year mortgage has higher monthly payments, but you build equity much faster and pay far less in total interest.

Using This Calculator for Budgeting

To get the most accurate result, check your local property tax rates and get a quote for homeowners insurance. While lenders may estimate these costs, inputting your specific numbers will give you a realistic view of your financial obligation. Remember, financial experts generally recommend that your total monthly housing costs should not exceed 28% of your gross monthly income.

function calculateMortgage() { // 1. Get references to input elements var priceInput = document.getElementById("homePrice"); var downInput = document.getElementById("downPayment"); var rateInput = document.getElementById("interestRate"); var termInput = document.getElementById("loanTerm"); var taxInput = document.getElementById("propertyTax"); var insInput = document.getElementById("homeInsurance"); var errorDiv = document.getElementById("errorDisplay"); var resultsDiv = document.getElementById("results"); // 2. Get values and parse var price = parseFloat(priceInput.value); var down = parseFloat(downInput.value); var rate = parseFloat(rateInput.value); var termYears = parseInt(termInput.value); var yearlyTax = parseFloat(taxInput.value); var yearlyIns = parseFloat(insInput.value); // 3. Validation if (isNaN(price) || isNaN(down) || isNaN(rate) || isNaN(termYears) || isNaN(yearlyTax) || isNaN(yearlyIns)) { errorDiv.style.display = "block"; resultsDiv.style.display = "none"; return; } // Reset error errorDiv.style.display = "none"; // 4. Calculation Logic // Principal Loan Amount var principal = price – down; // Prevent negative loan amount if (principal <= 0) { principal = 0; } // Monthly Interest Rate (Annual / 100 / 12) var monthlyRate = (rate / 100) / 12; // Total Number of Payments (Months) var numberOfPayments = termYears * 12; // Calculate Monthly Principal & Interest (P&I) // Formula: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1 ] var monthlyPI = 0; if (rate === 0) { monthlyPI = principal / numberOfPayments; } else { var mathPower = Math.pow(1 + monthlyRate, numberOfPayments); monthlyPI = principal * ((monthlyRate * mathPower) / (mathPower – 1)); } // Calculate Monthly Taxes and Insurance var monthlyTax = yearlyTax / 12; var monthlyIns = yearlyIns / 12; // Total Monthly Payment var totalMonthly = monthlyPI + monthlyTax + monthlyIns; // 5. Update UI document.getElementById("resPI").innerText = "$" + monthlyPI.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resTax").innerText = "$" + monthlyTax.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resIns").innerText = "$" + monthlyIns.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resTotal").innerText = "$" + totalMonthly.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resLoanAmount").innerText = "$" + principal.toLocaleString(); // Show results resultsDiv.style.display = "block"; }

Leave a Comment