Student Loan Repayment Calculator

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Rental Property ROI Calculator

Analyze your real estate investment's profitability and cash flow.

Total Cash Invested: $0.00
Monthly Mortgage (P&I): $0.00
Monthly Cash Flow: $0.00
Annual Net Operating Income (NOI): $0.00
Cap Rate: 0.00%
Cash on Cash Return: 0.00%

How to Calculate Rental Property ROI

Understanding the Return on Investment (ROI) for a rental property is essential for any real estate investor. Unlike stock market investments, real estate ROI involves multiple factors including financing costs, operating expenses, and gross rental income.

1. Net Operating Income (NOI)

NOI is the total income generated by the property after deducting all necessary operating expenses (property taxes, insurance, maintenance, property management fees). Crucially, NOI does not include mortgage payments.

Formula: Annual Rental Income – Annual Operating Expenses = NOI

2. Cap Rate (Capitalization Rate)

The Cap Rate is used to estimate the potential return on an investment property without considering financing. It represents the yield of a property over a one-year time horizon assuming the property was purchased in cash.

Formula: (NOI / Purchase Price) x 100

Real-World Example

Imagine you buy a property for $250,000 with 20% down ($50,000).

  • Monthly Rent: $2,200
  • Monthly Expenses: $500
  • Mortgage Payment: $1,300

Your Monthly Cash Flow would be $2,200 – $500 – $1,300 = $400.

Your Annual Cash Flow is $4,800. Since you invested $50,000 upfront, your Cash on Cash Return is 9.6%.

3. Cash on Cash Return

This is often considered the most important metric for investors using leverage (mortgages). It measures the annual cash flow relative to the actual "out-of-pocket" cash invested (down payment and closing costs).

Formula: (Annual Pre-Tax Cash Flow / Total Cash Invested) x 100

Why ROI Matters in Real Estate

Calculating ROI allows you to compare different properties objectively. A property in a high-appreciation area might have a lower immediate ROI but higher long-term gains, while a "cash flow" property might provide immediate monthly income. Use this calculator to ensure your investment meets your financial goals before you sign the contract.

function calculateRentalROI() { var price = parseFloat(document.getElementById("propPrice").value); var downPercent = parseFloat(document.getElementById("downPayment").value); var rate = parseFloat(document.getElementById("interestRate").value); var term = parseFloat(document.getElementById("loanTerm").value); var rent = parseFloat(document.getElementById("monthlyRent").value); var expenses = parseFloat(document.getElementById("otherExpenses").value); if (isNaN(price) || isNaN(downPercent) || isNaN(rate) || isNaN(term) || isNaN(rent) || isNaN(expenses)) { alert("Please enter valid numeric values for all fields."); return; } // Calculations var downPaymentAmount = price * (downPercent / 100); var loanAmount = price – downPaymentAmount; // Mortgage Payment (P&I) var monthlyRate = (rate / 100) / 12; var totalMonths = term * 12; var monthlyMortgage = 0; if (rate > 0) { monthlyMortgage = loanAmount * (monthlyRate * Math.pow(1 + monthlyRate, totalMonths)) / (Math.pow(1 + monthlyRate, totalMonths) – 1); } else { monthlyMortgage = loanAmount / totalMonths; } var monthlyCashFlow = rent – expenses – monthlyMortgage; var annualCashFlow = monthlyCashFlow * 12; var annualNOI = (rent – expenses) * 12; var capRate = (annualNOI / price) * 100; var cashOnCash = (annualCashFlow / downPaymentAmount) * 100; // Display Results document.getElementById("resCashInvested").innerText = "$" + downPaymentAmount.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resMortgage").innerText = "$" + monthlyMortgage.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resMonthlyFlow").innerText = "$" + monthlyCashFlow.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resAnnualNOI").innerText = "$" + annualNOI.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resCapRate").innerText = capRate.toFixed(2) + "%"; document.getElementById("resCoC").innerText = cashOnCash.toFixed(2) + "%"; // Formatting monthly flow color if (monthlyCashFlow < 0) { document.getElementById("resMonthlyFlow").style.color = "#dc2626"; } else { document.getElementById("resMonthlyFlow").style.color = "#059669"; } document.getElementById("roiResults").style.display = "block"; }

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