About the Rental Property Calculator
Check a rental property with NOI, monthly cash flow, cap rate, cash-on-cash return, DSCR and the 1% rule. This tool is free, works in your browser and needs no sign-up.
How to use the Rental Property Calculator
Enter the price, down payment, mortgage rate and term, rent, vacancy, taxes, insurance, repairs and management fees.
Formula used
NOI = effective rent − operating costs. Cash flow = NOI − yearly mortgage payments. GRM = price ÷ yearly rent. DSCR = NOI ÷ debt payments.
Example
With Purchase price 250000, Down payment (%) 20, Mortgage rate (% per year) 7, Loan term (years) 30, Monthly rent 2200, the calculator shows: Net operating income (NOI) = 16,656.00 per year; Monthly cash flow = 57.40; Cap rate = 6.66%.
Frequently asked questions
What is the 1% rule?
The 1% rule says monthly rent should be at least 1% of the purchase price. It is a quick screen, not a full analysis.
Is the Rental Property Calculator free to use?
Yes. It is completely free and you can use it as many times as you like.
How accurate is the Rental Property Calculator?
The calculator uses standard formulas, so the maths is exact. Real life results can differ because of fees, taxes, rounding or personal factors, so treat the answer as an estimate.
Do you store the numbers I enter?
No. All calculations run in your browser. The values you type are not sent to our server.
Disclaimer: results are estimates for information only. They are not financial, medical or professional advice.