Real Estate Calculator

How to Use This Real Estate Calculator

Enter the property purchase price and your down payment percentage

Input the loan interest rate and term (typically 30 years)

Add the expected monthly rental income

Include annual expenses: property taxes, insurance, and maintenance

Set the expected vacancy rate (typically 5-10%)

Click Analyze to see cash flow, cap rate, and cash-on-cash return

Example: A $300,000 property with 20% down ($60,000), 6.5% rate, $2,500/month rent, $3,600 taxes, and $1,500 insurance yields approximately $450/month cash flow, 5.9% cap rate, and 9% cash-on-cash return.

Tip: Run scenarios with different vacancy rates and rent amounts to stress-test the investment before purchasing.

Why Use a Real Estate Calculator?

Rental property analysis requires evaluating multiple metrics to determine if an investment will generate positive returns.

Analyze cash flow before purchasing rental property

Calculate capitalization rate to compare different properties

Determine cash-on-cash return on your down payment

Compare financing options and their impact on returns

Evaluate whether a property is overpriced for the rental market

Plan for maintenance reserves and vacancy periods

Understanding Your Results

Multiple metrics reveal different aspects of real estate investment performance.

Result	Meaning	Action
Cap rate 8%+	Strong cash flow relative to price	Attractive investment if property is in good condition
Cap rate 5-8%	Moderate returns, typical for stable markets	Consider appreciation potential and neighborhood growth
Cap rate below 5%	Lower cash yield, depends on appreciation	Only invest if strong appreciation expected or exceptional location

Cap rate 8%+

Meaning: Strong cash flow relative to price

Action: Attractive investment if property is in good condition

Cap rate 5-8%

Meaning: Moderate returns, typical for stable markets

Action: Consider appreciation potential and neighborhood growth

Cap rate below 5%

Meaning: Lower cash yield, depends on appreciation

Action: Only invest if strong appreciation expected or exceptional location

Note: Cash-on-cash return measures return on your actual cash invested. Cap rate ignores financing and measures property income relative to value.

About Real Estate Calculator

Real estate investment analysis combines multiple metrics to evaluate profitability. Cash flow is your monthly income after all expenses including mortgage. Cap rate (capitalization rate) measures unlevered return by dividing net operating income by property value. Cash-on-cash return shows your return on the actual cash invested (down payment plus closing costs). Each metric tells a different story: cash flow determines if you'll lose money monthly, cap rate helps compare properties regardless of financing, and cash-on-cash shows the efficiency of your invested capital. Calculate your financing costs with our estimate your monthly mortgage, and use our calculate your return on investment to compare real estate returns against other investment options.

Formula

Cap Rate = (Annual Rental Income - Operating Expenses) / Property Value × 100

Operating expenses include taxes, insurance, maintenance, and vacancy but exclude mortgage payments. Cap rate shows what you'd earn if you paid cash.

Current Standards: The 1% rule suggests monthly rent should equal 1% of purchase price. The 50% rule estimates operating expenses at 50% of rent (excluding mortgage). Cash-on-cash returns of 8-12% are considered good for rental properties.

Frequently Asked Questions

What's the difference between cap rate and cash-on-cash return?

Cap rate ignores financing and shows the property's return as if you paid cash. Cash-on-cash return factors in your mortgage and shows return on your actual invested capital. A property with a 6% cap rate might yield 10%+ cash-on-cash return with favorable financing.

What vacancy rate should I assume?

Use 5% for hot rental markets with high demand, 8-10% for average markets, and 10-15% for softer markets or properties that are harder to rent. Single-family homes may have higher vacancy impact since you have one tenant versus multiple in a multi-family.

How much should I budget for maintenance?

Budget 1% of property value annually for newer properties (under 10 years), 1.5% for 10-20 year old properties, and 2%+ for older buildings. Also maintain a capital reserve (typically 10% of rent) for major repairs like roof, HVAC, or appliances.

Is negative cash flow always bad?

Negative cash flow requires covering the gap from other income, which is risky. However, some investors accept small negative cash flow in high-appreciation markets if the property value growth exceeds the monthly losses. This strategy is speculative and requires capital reserves.

How do I account for property management?

If hiring a property manager, add 8-10% of collected rent to expenses. Even self-managing, consider including 5% to value your time. Property management costs significantly impact returns but provide passive income and professional tenant handling.

Calculation Results