Loan Consolidation Calculator

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Rental Property ROI Calculator

Total Initial Investment: $0.00
Annual Net Cash Flow: $0.00
Cash-on-Cash Return: 0.00%
Cap Rate: 0.00%

How to Calculate Rental Property ROI

Understanding your Return on Investment (ROI) is the difference between a profitable real estate portfolio and a financial burden. This calculator helps you determine two critical metrics: the Cash-on-Cash Return and the Cap Rate.

1. Cash-on-Cash Return

This metric measures the annual cash flow relative to the actual amount of cash you invested. The formula is:

(Annual Cash Flow / Total Initial Investment) x 100

It is vital for investors who use financing, as it shows the return on the specific dollars out of their own pocket.

2. Cap Rate (Capitalization Rate)

The Cap Rate evaluates the property's natural yield regardless of financing. It is calculated as:

(Net Operating Income / Purchase Price) x 100

This allows you to compare the profitability of different properties on an even playing field, assuming they were bought with cash.

Example Calculation

Imagine you buy a condo for $200,000. You spend $5,000 on closing and $5,000 on new carpets (Total Investment: $210,000). You rent it for $1,800/month. Your expenses (taxes, insurance, HOA) are $500/month and your mortgage is $800/month.

  • Annual Income: $1,800 * 12 = $21,600
  • Annual Expenses (including mortgage): ($500 + $800) * 12 = $15,600
  • Annual Cash Flow: $6,000
  • Cash-on-Cash Return: ($6,000 / $210,000) = 2.85%
function calculateRentalROI() { // Get values from inputs var price = parseFloat(document.getElementById("purchasePrice").value) || 0; var closing = parseFloat(document.getElementById("closingCosts").value) || 0; var repairs = parseFloat(document.getElementById("repairBudget").value) || 0; var rent = parseFloat(document.getElementById("monthlyRent").value) || 0; var expenses = parseFloat(document.getElementById("monthlyExpenses").value) || 0; var mortgage = parseFloat(document.getElementById("mortgagePayment").value) || 0; // Calculation Logic var totalInvestment = price + closing + repairs; // Monthly Net Operating Income (NOI) – Excludes Mortgage var monthlyNOI = rent – expenses; var annualNOI = monthlyNOI * 12; // Monthly Cash Flow – Includes Mortgage var monthlyCashFlow = rent – (expenses + mortgage); var annualCashFlow = monthlyCashFlow * 12; // ROI Metrics var cashOnCash = (totalInvestment > 0) ? (annualCashFlow / totalInvestment) * 100 : 0; var capRate = (price > 0) ? (annualNOI / price) * 100 : 0; // Format results document.getElementById("resTotalInvest").innerText = "$" + totalInvestment.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resAnnualCash").innerText = "$" + annualCashFlow.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById("resCoC").innerText = cashOnCash.toFixed(2) + "%"; document.getElementById("resCapRate").innerText = capRate.toFixed(2) + "%"; // Show the result box document.getElementById("roi-result-box").style.display = "block"; }

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