Interest Rate Business Loan Calculator

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Rental Property ROI Calculator

Calculate Cap Rate, Cash-on-Cash Return, and Monthly Cash Flow instantly.

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%

Understanding Rental Property ROI

Investing in real estate is one of the most proven ways to build long-term wealth. However, professional investors don't guess—they calculate. To determine if a rental property is a "good deal," you need to look beyond the purchase price and evaluate the Return on Investment (ROI).

Key Metrics Explained

1. Cap Rate (Capitalization Rate): This is the ratio of Net Operating Income (NOI) to the property purchase price. It reflects the property's natural rate of return without considering financing. A "good" cap rate varies by market but typically falls between 4% and 10%.

2. Cash-on-Cash Return (CoC): This is often considered the most important metric for investors using leverage. It measures the annual cash flow relative to the actual amount of cash you invested (down payment and closing costs). If you put $50,000 down and get $5,000 back in profit per year, your CoC is 10%.

3. Monthly Cash Flow: This is the "take-home" money left over after all expenses—including the mortgage, taxes, insurance, and maintenance—have been paid. Positive cash flow is vital for maintaining a healthy portfolio.

Real Estate Investment Example

Imagine you purchase a duplex for $300,000 with a 20% down payment ($60,000). Your monthly mortgage is $1,500, and you collect $2,800 in total rent. After setting aside $500 for taxes and repairs, your monthly cash flow is $800.

  • Annual Cash Flow: $9,600
  • Cash-on-Cash Return: 16% ($9,600 / $60,000)

This would be considered a very strong investment in most markets.

How to Improve Your ROI

If the numbers on our calculator aren't where you want them, consider these strategies:

  • Reduce Vacancy: Long-term tenants or professional management can keep units occupied.
  • Value-Add Renovations: Upgrading kitchens or adding a bedroom can significantly increase monthly rent.
  • Refinancing: If interest rates drop, refinancing can lower your monthly mortgage and boost cash flow.
function calculateRentalROI() { var price = parseFloat(document.getElementById('propPrice').value); var downPct = parseFloat(document.getElementById('downPayment').value) / 100; var rate = parseFloat(document.getElementById('interestRate').value) / 100 / 12; var term = parseFloat(document.getElementById('loanTerm').value) * 12; var rent = parseFloat(document.getElementById('monthlyRent').value); var expenses = parseFloat(document.getElementById('annualExpenses').value); if (isNaN(price) || isNaN(rent) || isNaN(expenses) || price 0) { monthlyMortgage = (loanAmount * rate) / (1 – Math.pow(1 + rate, -term)); } else { monthlyMortgage = loanAmount / term; } // Cash Flow & NOI var monthlyExpenses = expenses / 12; var monthlyCashFlow = rent – monthlyMortgage – monthlyExpenses; var annualCashFlow = monthlyCashFlow * 12; var annualNOI = (rent * 12) – expenses; // Metrics var capRate = (annualNOI / price) * 100; var cashOnCash = (annualCashFlow / downPaymentAmount) * 100; // Display Results document.getElementById('roiResults').style.display = 'block'; document.getElementById('resMortgage').innerText = '$' + monthlyMortgage.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resCashFlow').innerText = '$' + monthlyCashFlow.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resNOI').innerText = '$' + annualNOI.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resCapRate').innerText = capRate.toFixed(2) + '%'; if (downPaymentAmount > 0) { document.getElementById('resCoC').innerText = cashOnCash.toFixed(2) + '%'; } else { document.getElementById('resCoC').innerText = 'N/A (0 Down)'; } // Highlight negative cash flow if (monthlyCashFlow < 0) { document.getElementById('resCashFlow').style.color = '#e74c3c'; } else { document.getElementById('resCashFlow').style.color = '#27ae60'; } }

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