Real Estate Calculator
Estimate rental property cash flow, mortgage payment, net operating income, cap rate, cash-on-cash return, and 5-year investment projection.
Property & Loan Details
Enter property price, loan details, income, and expenses. Then click Calculate.
This calculator gives estimates only. Real estate returns depend on market conditions, financing, taxes, repairs, vacancy, rent changes, and selling costs.
Enter your details and click Calculate Real Estate Return.
Monthly Expense Breakdown
Mortgage$0.00
Taxes & Insurance$0.00
HOA / Maintenance$0.00
Vacancy / Management / Other$0.00
5-Year Investment Projection
| Estimated property value after 5 years | $0.00 |
| Estimated loan balance after 5 years | $0.00 |
| Estimated equity after 5 years | $0.00 |
| Estimated selling cost | $0.00 |
| Estimated net sale proceeds | $0.00 |
| Estimated total 5-year cash flow | $0.00 |
| Estimated total profit after 5 years | $0.00 |
| Estimated 5-year return on cash invested | 0% |
Real Estate Summary
| Monthly gross income | $0.00 |
| Monthly vacancy estimate | $0.00 |
| Monthly operating expenses | $0.00 |
| Annual cash flow | $0.00 |
| Debt service coverage ratio | 0 |
| Investment status | — |
Real Estate Calculator: Estimate Rental Cash Flow, ROI, and Cap Rate
Use this guide with the real estate calculator above to estimate rental income, mortgage payment, operating expenses, net operating income, cash flow, cap rate, cash-on-cash return, and total property ROI.
What Is a Real Estate Calculator?
A real estate calculator is a property investment tool that helps estimate the financial performance of a rental property. It compares rental income with mortgage payments, operating expenses, and cash invested.
Investors often use real estate calculators to review potential rental properties before buying. The goal is to understand whether a property may produce positive cash flow and a reasonable return.
How to Use This Real Estate Calculator
Enter the purchase price, down payment, loan terms, rent, vacancy, expenses, closing costs, renovation costs, appreciation estimate, and holding period. Then review the estimated returns.
Enter Property Price
Add the purchase price, down payment, closing costs, and renovation estimate.
Add Loan Details
Enter the interest rate and loan term to estimate the monthly mortgage payment.
Add Rent and Expenses
Include rent, vacancy, taxes, insurance, maintenance, management fees, and HOA costs.
Review Investment Returns
See cash flow, NOI, cap rate, cash-on-cash return, future value, and ROI.
Real Estate Investment Formulas
Three common rental property formulas are:
These formulas help compare rental properties, but they should be reviewed with market research, inspection results, financing terms, and risk factors.
What This Real Estate Calculator Shows
This calculator gives a practical rental property estimate using common real estate investment metrics.
Monthly Cash Flow
The estimated money left after operating expenses and mortgage payment.
Net Operating Income
Annual rental income after vacancy and operating expenses, before mortgage debt service.
Cap Rate
NOI divided by purchase price, used to compare income-producing properties.
Cash-on-Cash Return
Annual cash flow divided by total cash invested into the property.
Gross Rent Multiplier
Purchase price divided by annual gross rent, often used as a simple screening metric.
Total ROI
An estimate of total return after cash flow, appreciation, sale costs, and remaining loan balance.
Real Estate Investment Example
Suppose a rental property costs $350,000, rents for $2,800 per month, and has a 5% vacancy estimate. The calculator reduces rental income for vacancy, subtracts operating expenses, and then subtracts the mortgage payment.
If the property produces positive cash flow, the calculator can also estimate cap rate, cash-on-cash return, future value, sale proceeds, and total ROI over the holding period.
Cash Flow vs. Cap Rate
Cash flow shows how much money may remain each month after expenses and mortgage payments. It is important for investors who want rental income to support itself.
Cap rate focuses on property income before financing. It helps compare properties regardless of the buyer’s loan terms, but it does not include mortgage payment, appreciation, or taxes.
Why Real Estate Return Estimates Matter
Real estate investments can look attractive based on rent alone, but expenses can change the full picture. Vacancy, repairs, property taxes, insurance, management fees, financing, and selling costs can affect returns.
A real estate calculator helps organize those numbers before making a serious offer, comparing multiple properties, or speaking with a lender.
Real Estate Investment Planning Tips
Related Calculators and Trusted Real Estate Resources
Continue planning with related real estate calculators and trusted educational resources about property, mortgages, housing, and investment planning.
Mortgage Calculator
Estimate monthly mortgage payment, taxes, insurance, PMI, and total cost.
Open Tool → Internal ToolAmortization Calculator
See how principal and interest change over the loan term.
Open Tool → Internal ToolROI Calculator
Calculate return on investment, profit, and annualized ROI.
Open Tool → Internal ToolRental Property Calculator
Estimate rental income, expenses, cash flow, and returns.
Open Tool →Learn More From Official Housing and Investor Sources
These external resources are provided for educational purposes and open in a new tab.
Owning a Home
Explore mortgage and home ownership education from CFPB.
Visit CFPB → HUDBuying a Home
Review home buying resources from HUD.
Visit HUD → IRSResidential Rental Property
Read IRS information about rental property income and expenses.
Visit IRS → Investor.govInvestor Education
Explore general investing education and investor resources.
Visit Investor.gov →Frequently Asked Questions
What is a real estate calculator?
A real estate calculator estimates rental property performance using purchase price, rental income, mortgage payment, expenses, cash flow, cap rate, and ROI.
How do you calculate rental property cash flow?
Rental property cash flow is usually calculated by subtracting operating expenses and mortgage payment from effective rental income.
What is cap rate in real estate?
Cap rate is net operating income divided by property value or purchase price, shown as a percentage.
What is cash-on-cash return?
Cash-on-cash return compares annual cash flow with the total cash invested in the property.
Can this calculator predict exact real estate returns?
No. It provides estimates only. Actual returns may vary due to rent changes, vacancies, repairs, financing, market value changes, taxes, insurance, and selling costs.
Important Disclaimer
This real estate calculator is for educational and informational purposes only. It does not provide financial, investment, tax, legal, mortgage, or real estate advice. Real estate returns can vary based on market conditions, expenses, rent collection, financing, maintenance, tenant risk, taxes, and property location.