.rental-calculator-wrapper {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
max-width: 800px;
margin: 0 auto;
border: 1px solid #e0e0e0;
border-radius: 8px;
background: #fff;
padding: 20px;
box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.rental-calc-header {
text-align: center;
margin-bottom: 25px;
border-bottom: 2px solid #f0f0f0;
padding-bottom: 15px;
}
.rental-calc-header h2 {
margin: 0;
color: #2c3e50;
font-size: 24px;
}
.calc-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
}
@media (max-width: 768px) {
.calc-grid {
grid-template-columns: 1fr;
}
}
.input-group {
margin-bottom: 15px;
}
.input-group label {
display: block;
margin-bottom: 5px;
font-weight: 600;
color: #555;
font-size: 14px;
}
.input-wrapper {
position: relative;
display: flex;
align-items: center;
}
.prefix {
position: absolute;
left: 10px;
color: #777;
}
.suffix {
position: absolute;
right: 10px;
color: #777;
}
.input-group input {
width: 100%;
padding: 10px 10px 10px 25px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 16px;
transition: border-color 0.3s;
}
.input-group input:focus {
border-color: #3498db;
outline: none;
}
.input-group input.has-suffix {
padding-right: 25px;
}
.section-title {
grid-column: 1 / -1;
font-size: 18px;
color: #34495e;
margin-top: 10px;
margin-bottom: 10px;
border-bottom: 1px solid #eee;
padding-bottom: 5px;
}
.calc-btn {
grid-column: 1 / -1;
background-color: #27ae60;
color: white;
border: none;
padding: 15px;
font-size: 18px;
font-weight: bold;
border-radius: 4px;
cursor: pointer;
transition: background-color 0.3s;
margin-top: 10px;
}
.calc-btn:hover {
background-color: #219150;
}
.results-section {
margin-top: 30px;
background-color: #f8f9fa;
border-radius: 6px;
padding: 20px;
display: none;
}
.results-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 15px;
}
.result-card {
background: white;
padding: 15px;
border-radius: 4px;
border-left: 4px solid #3498db;
box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.result-card.positive { border-left-color: #27ae60; }
.result-card.negative { border-left-color: #e74c3c; }
.result-label {
font-size: 13px;
color: #7f8c8d;
text-transform: uppercase;
letter-spacing: 0.5px;
}
.result-value {
font-size: 24px;
font-weight: 700;
color: #2c3e50;
margin-top: 5px;
}
.error-msg {
color: #c0392b;
font-size: 14px;
margin-top: 10px;
text-align: center;
display: none;
}
.seo-content {
margin-top: 40px;
line-height: 1.6;
color: #444;
}
.seo-content h3 {
color: #2c3e50;
margin-top: 25px;
}
.seo-content ul {
padding-left: 20px;
}
.seo-content li {
margin-bottom: 10px;
}
function calculateRentalROI() {
// Get Inputs
var price = parseFloat(document.getElementById('purchasePrice').value);
var downPercent = parseFloat(document.getElementById('downPayment').value);
var rate = parseFloat(document.getElementById('interestRate').value);
var years = parseFloat(document.getElementById('loanTerm').value);
var closing = parseFloat(document.getElementById('closingCosts').value) || 0;
var repairs = parseFloat(document.getElementById('repairCosts').value) || 0;
var rent = parseFloat(document.getElementById('monthlyRent').value);
var otherInc = parseFloat(document.getElementById('otherIncome').value) || 0;
var tax = parseFloat(document.getElementById('propTax').value) || 0;
var ins = parseFloat(document.getElementById('insurance').value) || 0;
var hoa = parseFloat(document.getElementById('hoa').value) || 0;
var maint = parseFloat(document.getElementById('maintenance').value) || 0;
var pm = parseFloat(document.getElementById('management').value) || 0;
var vacancy = parseFloat(document.getElementById('vacancy').value) || 0;
// Validation
if (isNaN(price) || isNaN(rent) || price 0) {
cashOnCash = (annualCashFlow / totalCashInvested) * 100;
}
if (price > 0) {
capRate = (annualNOI / price) * 100; // Cap rate based on purchase price usually
}
// Display Results
document.getElementById('resultsSection').style.display = 'block';
// Formatting helper
var fmtMoney = new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD' });
var fmtPct = new Intl.NumberFormat('en-US', { style: 'percent', minimumFractionDigits: 2 });
document.getElementById('resCashFlow').innerText = fmtMoney.format(monthlyCashFlow);
document.getElementById('resCoC').innerText = fmtPct.format(cashOnCash / 100);
document.getElementById('resCapRate').innerText = fmtPct.format(capRate / 100);
document.getElementById('resNOI').innerText = fmtMoney.format(annualNOI) + "/yr";
document.getElementById('resCashNeeded').innerText = fmtMoney.format(totalCashInvested);
document.getElementById('resTotalExp').innerText = fmtMoney.format(totalMonthlyExpenses);
// Styling adjustments based on positivity
var cfCard = document.getElementById('cashFlowCard');
if (monthlyCashFlow >= 0) {
cfCard.classList.remove('negative');
cfCard.classList.add('positive');
} else {
cfCard.classList.remove('positive');
cfCard.classList.add('negative');
}
}
Rental Property Cash Flow Calculator
Purchase Info
$
%
%
Yrs
$
$
Income (Monthly)
$
$
Expenses (Monthly)
$
$
$
$
$
$
Please enter valid numeric values for Purchase Price and Rent.
Investment Analysis
Monthly Cash Flow
$0.00
Cash on Cash Return
0.00%
Cap Rate
0.00%
Net Operating Income (NOI)
$0.00/yr
Total Cash Needed
$0.00
Monthly Expenses
$0.00
How to Analyze a Rental Property Deal
Analyzing a rental property correctly is crucial for real estate investors. This Rental Property Cash Flow Calculator helps you determine the viability of an investment by breaking down income, expenses, and key return metrics.
Key Metrics Explained
- Cash Flow: The net amount of cash moving in or out of the investment each month after all expenses and debt service are paid. Positive cash flow means the property pays for itself and generates profit.
- Cash on Cash Return (CoC): A percentage return on the actual cash you invested (Down Payment + Closing Costs + Repairs). It measures the efficiency of your deployed capital.
- Cap Rate (Capitalization Rate): Calculated as Net Operating Income (NOI) divided by the Purchase Price. It represents the potential return on an investment assuming it was paid for in cash, allowing you to compare properties regardless of financing methods.
- Net Operating Income (NOI): Total revenue minus all necessary operating expenses. Note that NOI does not include mortgage payments (debt service).
Common Expenses to Watch For
Many new investors underestimate expenses. Beyond the mortgage, you must account for vacancy rates (typically 5-8%), property management fees (8-10%), maintenance reserves, and capital expenditures (CapEx) for big-ticket items like roof or HVAC replacements.