Heloc Interest Rate Calculator

HELOC Interest Rate Calculator: Estimate Your Home Equity Line of Credit Costs :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ccc; –card-background: #fff; –shadow: 0 2px 5px rgba(0,0,0,0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 1000px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } header { text-align: center; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid var(–border-color); } header h1 { color: var(–primary-color); margin-bottom: 10px; } .loan-calc-container { background-color: var(–card-background); padding: 25px; border-radius: 8px; box-shadow: var(–shadow); margin-bottom: 30px; } .loan-calc-container h2 { color: var(–primary-color); text-align: center; 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HELOC Interest Rate Calculator

Estimate your potential HELOC interest costs and monthly payments.

HELOC Interest Rate Calculator

The total amount you can borrow.
The portion of the credit line you are currently using.
Typical HELOC rates range from 6% to 15%.
The period during which you can borrow funds.
The period after the draw period to repay the loan.

Your HELOC Estimates

Estimated Monthly Interest-Only Payment: $0.00
Maximum Monthly Payment (Interest + Principal): $0.00
Total Interest Paid Over Repayment Period: $0.00
Total Amount Repaid: $0.00
Formula Used:

Monthly Interest-Only Payment: (Borrowed Amount * (Annual Interest Rate / 100)) / 12

Maximum Monthly Payment (Interest + Principal): Calculated using the loan amortization formula for the repayment period.

Total Interest Paid: (Total Amount Repaid – Borrowed Amount)

Total Amount Repaid: (Monthly Payment * Number of Months in Repayment Period)

HELOC Repayment Schedule Projection

Principal

Interest

HELOC Repayment Amortization (First 12 Months)

Month Starting Balance Payment Interest Paid Principal Paid Ending Balance

What is a HELOC Interest Rate?

A Home Equity Line of Credit (HELOC) is a revolving credit facility, similar to a credit card, that allows homeowners to borrow against the equity they've built up in their homes. The interest rate on a HELOC is a critical factor determining the cost of borrowing. Unlike a home equity loan, which provides a lump sum with a fixed interest rate, a HELOC typically has a variable interest rate that can fluctuate over the life of the loan, often tied to a benchmark index like the prime rate. Understanding the HELOC interest rate is crucial for managing your finances effectively.

Who Should Use a HELOC?

Homeowners who have significant equity in their homes and anticipate needing access to funds for various purposes, such as home renovations, debt consolidation, education expenses, or emergency funds, might consider a HELOC. It's particularly useful for those who prefer the flexibility of drawing funds as needed rather than receiving a lump sum. However, it's essential to remember that a HELOC uses your home as collateral, meaning failure to repay could lead to foreclosure.

Common Misconceptions about HELOC Interest Rates:

  • Misconception: HELOC rates are always fixed. Reality: Most HELOCs have variable rates that change with market conditions.
  • Misconception: The advertised rate is the only rate you'll pay. Reality: Fees (origination, appraisal, annual fees) can increase the overall cost.
  • Misconception: HELOCs are just like credit cards. Reality: While revolving, HELOCs are secured by your home, making them a higher-stakes borrowing option.

HELOC Interest Rate Formula and Mathematical Explanation

Calculating the potential costs associated with a HELOC involves understanding its interest rate and how it applies to the borrowed amount. The primary components are the interest-only payment during the draw period and the amortizing payment during the repayment period.

Interest-Only Payment Calculation

During the draw period, many HELOCs allow borrowers to make interest-only payments. This means you only pay the interest accrued on the outstanding balance, keeping your monthly payments lower temporarily. The formula is straightforward:

Monthly Interest-Only Payment = (Borrowed Amount * (Annual Interest Rate / 100)) / 12

Amortizing Payment Calculation

Once the draw period ends, the repayment period begins. During this phase, your payments will include both principal and interest, designed to pay off the outstanding balance over the specified repayment term. This is calculated using the standard loan amortization formula:

M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1]

Where:

  • M = Your total monthly mortgage payment (principal and interest)
  • P = The principal loan amount (the amount you borrowed)
  • i = Your monthly interest rate (annual rate divided by 12)
  • n = The total number of payments over the loan's lifetime (loan term in years multiplied by 12)

Key Variables Explained

Understanding the variables used in these calculations is essential for accurate estimations:

Variable Meaning Unit Typical Range
HELOC Credit Line Amount The maximum amount available to borrow. Dollars ($) $10,000 – $1,000,000+
Amount Currently Borrowed The portion of the credit line currently drawn. Dollars ($) $0 – HELOC Credit Line Amount
Annual Interest Rate The yearly interest rate applied to the borrowed amount. Often variable. Percentage (%) 6% – 15% (can vary significantly)
Draw Period The initial phase where funds can be borrowed and interest-only payments may be made. Years 5 – 10 years (common)
Repayment Period The phase after the draw period where principal and interest payments are required. Years 10 – 20 years (common)
Monthly Interest-Only Payment The minimum payment required during the draw period. Dollars ($) Calculated based on borrowed amount and rate.
Maximum Monthly Payment The payment required during the repayment period, including principal. Dollars ($) Calculated based on amortization formula.
Total Interest Paid The sum of all interest paid over the loan's life. Dollars ($) Varies greatly with rate and term.

Practical Examples (Real-World Use Cases)

Let's illustrate how the HELOC interest rate calculator can be used with practical scenarios:

Example 1: Home Renovation Project

Sarah has a HELOC with a $100,000 credit line and has built up substantial equity in her home. She plans a major kitchen renovation and needs to borrow $60,000. Her HELOC has a variable annual interest rate currently at 8.0%, with a 10-year draw period and a 15-year repayment period. She wants to estimate her initial monthly payments.

  • Inputs:
  • HELOC Credit Line Amount: $100,000
  • Amount Currently Borrowed: $60,000
  • Estimated Annual Interest Rate: 8.0%
  • Draw Period: 10 Years
  • Repayment Period: 15 Years

Calculated Results:

  • Estimated Monthly Interest-Only Payment: ($60,000 * (8.0 / 100)) / 12 = $400.00
  • Maximum Monthly Payment (estimated): ~$553.09 (This payment would start after the 10-year draw period)
  • Total Interest Paid (estimated over repayment): ~$39,437.00
  • Total Amount Repaid (estimated over repayment): ~$99,437.00

Financial Interpretation: Sarah's initial monthly cost for borrowing $60,000 is $400. This allows her to manage cash flow during the renovation. However, she needs to be prepared for the higher payments of approximately $553.09 once the repayment period begins, which includes paying down the principal. The total interest paid over the loan's life is a significant cost to consider.

Example 2: Debt Consolidation

Mark wants to consolidate $30,000 in high-interest credit card debt using a HELOC. His HELOC has a $75,000 credit line, and he plans to draw the full $30,000. The current variable annual interest rate is 9.5%. The HELOC terms are a 5-year draw period and a 10-year repayment period.

  • Inputs:
  • HELOC Credit Line Amount: $75,000
  • Amount Currently Borrowed: $30,000
  • Estimated Annual Interest Rate: 9.5%
  • Draw Period: 5 Years
  • Repayment Period: 10 Years

Calculated Results:

  • Estimated Monthly Interest-Only Payment: ($30,000 * (9.5 / 100)) / 12 = $237.50
  • Maximum Monthly Payment (estimated): ~$368.37 (This payment would start after the 5-year draw period)
  • Total Interest Paid (estimated over repayment): ~$15,204.00
  • Total Amount Repaid (estimated over repayment): ~$45,204.00

Financial Interpretation: By consolidating, Mark reduces his monthly debt payments from potentially much higher amounts on credit cards to $237.50 during the draw period. He must be aware that the rate is variable and could increase. After 5 years, his payments will rise to cover principal, reaching approximately $368.37 monthly. This strategy saves him money on interest compared to carrying high-interest credit card debt, but the total repayment cost is substantial.

How to Use This HELOC Interest Rate Calculator

Our HELOC interest rate calculator is designed for simplicity and clarity, helping you estimate your borrowing costs. Follow these steps:

  1. Enter HELOC Credit Line Amount: Input the total amount you are approved for or the maximum you might consider.
  2. Enter Amount Currently Borrowed: If you already have funds drawn from your HELOC, enter that amount. If it's a new HELOC, this might be $0 or the amount you intend to draw immediately.
  3. Enter Estimated Annual Interest Rate: Input the current annual interest rate for the HELOC. Remember that most HELOC rates are variable, so this is an estimate based on current market conditions or the rate offered.
  4. Enter Draw Period (Years): Specify the length of the initial period during which you can borrow funds.
  5. Enter Repayment Period (Years): Indicate the duration after the draw period during which you will repay the borrowed principal and interest.
  6. Click 'Calculate': The calculator will instantly display your estimated monthly interest-only payment (during the draw period), the projected maximum monthly payment (during the repayment period), total interest paid, and total amount repaid.

How to Read Results:

  • Primary Result (Monthly Interest-Only Payment): This is your minimum required payment during the draw period. It helps gauge immediate affordability.
  • Maximum Monthly Payment: This is an estimate of your payment during the repayment period, which will be higher as it includes principal.
  • Total Interest Paid & Total Amount Repaid: These figures provide a long-term perspective on the total cost of borrowing.

Decision-Making Guidance: Use these estimates to compare HELOC offers, assess affordability, and plan your budget. If the estimated payments seem too high, consider borrowing a smaller amount, negotiating a lower interest rate, or exploring HELOCs with longer repayment terms. Always factor in potential rate increases for variable-rate HELOCs.

Key Factors That Affect HELOC Interest Rate Results

Several factors influence the interest rate you'll receive on a HELOC and, consequently, the results you see in our calculator. Understanding these can help you secure better terms:

  1. Credit Score: This is arguably the most significant factor. Lenders view borrowers with higher credit scores (typically 700+) as lower risk, leading to more favorable interest rates. A lower score may result in a higher rate or denial.
  2. Loan-to-Value (LTV) Ratio: This ratio compares the amount you owe on your mortgage plus the HELOC amount to your home's appraised value. A lower LTV (meaning you have more equity) generally translates to a lower interest rate, as it reduces the lender's risk.
  3. Market Interest Rates (Prime Rate): Most HELOCs have variable rates tied to a benchmark index, commonly the U.S. prime rate. When the Federal Reserve raises interest rates, the prime rate typically follows, increasing your HELOC rate and payments. Conversely, falling rates can lower your costs.
  4. HELOC Term Structure (Draw vs. Repayment): The length of the draw period and repayment period affects your payment structure. Shorter repayment periods mean higher monthly payments but less total interest paid over time. Longer draw periods offer more flexibility but can lead to ballooning payments later if principal isn't paid down.
  5. Lender Fees: While not directly part of the interest rate calculation, fees like origination fees, appraisal fees, annual fees, and inactivity fees add to the overall cost of the HELOC. Always ask for a full disclosure of fees. A HELOC with a slightly higher rate but no fees might be cheaper than one with a lower rate and substantial fees.
  6. Relationship with Lender: Sometimes, existing customers with a strong banking relationship might qualify for slightly better rates or fee waivers. Shopping around with multiple lenders is crucial.
  7. Economic Conditions and Inflation: Broader economic factors, including inflation and the overall health of the economy, influence central bank policies and, subsequently, benchmark interest rates. High inflation often leads to higher interest rates to cool the economy.

Frequently Asked Questions (FAQ)

Q1: What is the difference between a HELOC and a home equity loan?

A HELOC is a revolving line of credit with a variable interest rate, allowing you to draw funds as needed up to a limit. A home equity loan provides a lump sum with a fixed interest rate and repayment schedule. Our calculator focuses on the variable nature of HELOC rates.

Q2: Can my HELOC interest rate increase?

Yes, most HELOCs have variable interest rates tied to a benchmark index like the prime rate. If the index rate rises, your HELOC rate will likely increase, leading to higher payments.

Q3: What happens after the draw period ends on a HELOC?

After the draw period, you typically enter the repayment period. You can no longer borrow funds, and your payments will increase to include both principal and interest, amortizing the outstanding balance over the remaining loan term.

Q4: How is the "Maximum Monthly Payment" calculated?

The maximum monthly payment is calculated using the standard loan amortization formula for the repayment period, assuming the entire borrowed amount needs to be paid off over that term. It represents the payment required to fully repay the loan, including principal and interest.

Q5: Are there fees associated with HELOCs?

Yes, common fees include application fees, appraisal fees, origination fees, annual fees, and sometimes recording fees. Always ask your lender for a complete list of fees.

Q6: Can I pay off my HELOC early?

Yes, you can typically pay off your HELOC early without penalty. Making extra payments towards the principal can significantly reduce the total interest paid over the life of the loan.

Q7: How does my credit score affect my HELOC interest rate?

A higher credit score generally qualifies you for lower interest rates because lenders perceive you as a lower credit risk. Conversely, a lower credit score may result in a higher rate or loan denial.

Q8: Is a HELOC a good option for consolidating debt?

A HELOC can be a good option for debt consolidation if you can secure a lower interest rate than your current debts, especially high-interest credit cards. However, remember that you are securing the debt with your home, increasing foreclosure risk if you cannot make payments.

Related Tools and Internal Resources

var creditLineInput = document.getElementById('creditLine'); var borrowedAmountInput = document.getElementById('borrowedAmount'); var interestRateInput = document.getElementById('interestRate'); var loanTermInput = document.getElementById('loanTerm'); var repaymentTermInput = document.getElementById('repaymentTerm'); var creditLineError = document.getElementById('creditLineError'); var borrowedAmountError = document.getElementById('borrowedAmountError'); var interestRateError = document.getElementById('interestRateError'); var loanTermError = document.getElementById('loanTermError'); var repaymentTermError = document.getElementById('repaymentTermError'); var primaryResultDisplay = document.querySelector('.primary-result'); var maxMonthlyPaymentDisplay = document.getElementById('maxMonthlyPayment'); var totalInterestPaidDisplay = document.getElementById('totalInterestPaid'); var totalAmountRepaidDisplay = document.getElementById('totalAmountRepaid'); var amortizationTableBody = document.querySelector('#amortizationTable tbody'); var chart; var chartContext = document.getElementById('helocChart').getContext('2d'); function validateInput(input, errorElement, min, max, label, isPercentage = false) { var value = parseFloat(input.value); var errorMessage = ""; if (isNaN(value)) { errorMessage = label + " is required."; } else if (value max) { errorMessage = label + " cannot be more than $" + max.toLocaleString() + (isPercentage ? "%" : ""); } if (errorElement) { errorElement.textContent = errorMessage; errorElement.style.display = errorMessage ? 'block' : 'none'; } return !errorMessage; } function calculateHELOC() { var isValid = true; isValid &= validateInput(creditLineInput, creditLineError, 1000, undefined, 'HELOC Credit Line Amount'); isValid &= validateInput(borrowedAmountInput, borrowedAmountError, 0, parseFloat(creditLineInput.value), 'Amount Currently Borrowed'); isValid &= validateInput(interestRateInput, interestRateError, 1, 25, 'Annual Interest Rate', true); isValid &= validateInput(loanTermInput, loanTermError, 1, 30, 'Draw Period'); isValid &= validateInput(repaymentTermInput, repaymentTermError, 1, 30, 'Repayment Period'); if (!isValid) { clearResults(); return; } var creditLine = parseFloat(creditLineInput.value); var borrowedAmount = parseFloat(borrowedAmountInput.value); var annualInterestRate = parseFloat(interestRateInput.value); var loanTermYears = parseInt(loanTermInput.value); var repaymentTermYears = parseInt(repaymentTermInput.value); var monthlyInterestRate = annualInterestRate / 100 / 12; var loanTermMonths = loanTermYears * 12; var repaymentTermMonths = repaymentTermYears * 12; var totalLoanMonths = loanTermMonths + repaymentTermMonths; // Calculate Monthly Interest-Only Payment var monthlyInterestOnlyPayment = borrowedAmount * monthlyInterestRate; primaryResultDisplay.textContent = '$' + monthlyInterestOnlyPayment.toFixed(2); // Calculate Maximum Monthly Payment (Amortizing) var maxMonthlyPayment = 0; if (monthlyInterestRate > 0) { maxMonthlyPayment = borrowedAmount * (monthlyInterestRate * Math.pow(1 + monthlyInterestRate, repaymentTermMonths)) / (Math.pow(1 + monthlyInterestRate, repaymentTermMonths) – 1); } else { maxMonthlyPayment = borrowedAmount / repaymentTermMonths; // Handle 0% interest case } maxMonthlyPaymentDisplay.textContent = '$' + maxMonthlyPayment.toFixed(2); // Calculate Total Interest Paid and Total Amount Repaid var totalAmountRepaid = maxMonthlyPayment * repaymentTermMonths; var totalInterestPaid = totalAmountRepaid – borrowedAmount; totalInterestPaidDisplay.textContent = '$' + totalInterestPaid.toFixed(2); totalAmountRepaidDisplay.textContent = '$' + totalAmountRepaid.toFixed(2); updateChartAndTable(borrowedAmount, monthlyInterestRate, maxMonthlyPayment, repaymentTermMonths); } function updateChartAndTable(principal, monthlyRate, amortizingPayment, numMonths) { // Clear previous chart data if (chart) { chart.destroy(); } // Clear previous table data amortizationTableBody.innerHTML = "; var labels = []; var principalData = []; var interestData = []; var currentBalance = principal; var totalInterestAccrued = 0; // Simulate amortization for the table (first 12 months) for (var i = 1; i currentBalance) { principalPayment = currentBalance; interestPayment = amortizingPayment – principalPayment; // Adjust interest if needed if (interestPayment < 0) interestPayment = 0; // Ensure interest isn't negative } currentBalance -= principalPayment; totalInterestAccrued += interestPayment; var row = amortizationTableBody.insertRow(); row.insertCell(0).textContent = i; row.insertCell(1).textContent = '$' + (principal – currentBalance + principalPayment).toFixed(2); // Starting balance for the month row.insertCell(2).textContent = '$' + amortizingPayment.toFixed(2); row.insertCell(3).textContent = '$' + interestPayment.toFixed(2); row.insertCell(4).textContent = '$' + principalPayment.toFixed(2); row.insertCell(5).textContent = '$' + Math.max(0, currentBalance).toFixed(2); // Ensure balance doesn't go negative labels.push('Month ' + i); principalData.push(principalPayment); interestData.push(interestPayment); } // Create chart chart = new Chart(chartContext, { type: 'bar', data: { labels: labels, datasets: [{ label: 'Principal Paid', data: principalData, backgroundColor: 'rgba(0, 74, 153, 0.6)', // Primary color borderColor: 'rgba(0, 74, 153, 1)', borderWidth: 1 }, { label: 'Interest Paid', data: interestData, backgroundColor: 'rgba(40, 167, 69, 0.6)', // Success color borderColor: 'rgba(40, 167, 69, 1)', borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, ticks: { callback: function(value) { return '$' + value.toLocaleString(); } } } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.parsed.y !== null) { label += '$' + context.parsed.y.toLocaleString(); } return label; } } } } } }); } function resetForm() { creditLineInput.value = 50000; borrowedAmountInput.value = 25000; interestRateInput.value = 8.5; loanTermInput.value = 10; repaymentTermInput.value = 15; clearErrorMessages(); clearResults(); calculateHELOC(); // Recalculate with defaults } function clearResults() { primaryResultDisplay.textContent = '$0.00'; maxMonthlyPaymentDisplay.textContent = '$0.00'; totalInterestPaidDisplay.textContent = '$0.00'; totalAmountRepaidDisplay.textContent = '$0.00'; if (chart) { chart.destroy(); chart = null; } amortizationTableBody.innerHTML = ''; } function clearErrorMessages() { creditLineError.textContent = ''; creditLineError.style.display = 'none'; borrowedAmountError.textContent = ''; borrowedAmountError.style.display = 'none'; interestRateError.textContent = ''; interestRateError.style.display = 'none'; loanTermError.textContent = ''; loanTermError.style.display = 'none'; repaymentTermError.textContent = ''; repaymentTermError.style.display = 'none'; } function copyResults() { var creditLine = creditLineInput.value; var borrowedAmount = borrowedAmountInput.value; var interestRate = interestRateInput.value; var loanTerm = loanTermInput.value; var repaymentTerm = repaymentTermInput.value; var monthlyInterestOnly = primaryResultDisplay.textContent; var maxMonthly = maxMonthlyPaymentDisplay.textContent; var totalInterest = totalInterestPaidDisplay.textContent; var totalRepaid = totalAmountRepaidDisplay.textContent; var resultsText = "HELOC Interest Rate Calculation Results:\n\n" + "Assumptions:\n" + "- HELOC Credit Line: $" + creditLine + "\n" + "- Amount Borrowed: $" + borrowedAmount + "\n" + "- Annual Interest Rate: " + interestRate + "%\n" + "- Draw Period: " + loanTerm + " years\n" + "- Repayment Period: " + repaymentTerm + " years\n\n" + "Estimated Payments:\n" + "- Monthly Interest-Only Payment: " + monthlyInterestOnly + "\n" + "- Estimated Maximum Monthly Payment (Principal + Interest): " + maxMonthly + "\n\n" + "Total Costs:\n" + "- Total Interest Paid: " + totalInterest + "\n" + "- Total Amount Repaid: " + totalRepaid; // Use a temporary textarea to copy text var textArea = document.createElement("textarea"); textArea.value = resultsText; textArea.style.position = "fixed"; textArea.style.left = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied to clipboard!' : 'Failed to copy results.'; // Optionally show a temporary message to the user console.log(msg); // alert(msg); // Uncomment to show an alert } catch (err) { console.error('Unable to copy results.', err); // alert('Failed to copy results.'); // Uncomment to show an alert } document.body.removeChild(textArea); } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { calculateHELOC(); }); // Add event listeners for real-time updates creditLineInput.addEventListener('input', calculateHELOC); borrowedAmountInput.addEventListener('input', calculateHELOC); interestRateInput.addEventListener('input', calculateHELOC); loanTermInput.addEventListener('input', calculateHELOC); repaymentTermInput.addEventListener('input', calculateHELOC);

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