Rental Property Calculator

Calculate rental property investment returns and cash flow

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About the Rental Property Calculator

This calculator estimates the returns and cash flow of a rental property investment. It produces monthly cash flow, cap rate, cash-on-cash return, and total ROI based on your numbers.

The tool uses standard real estate metrics, including cap rate (net operating income divided by purchase price) and cash-on-cash return (annual cash flow divided by cash invested). Inputs include purchase price, down payment, loan terms, rental income, and recurring expenses such as taxes, insurance, maintenance, and management fees. Add a vacancy allowance, often five to ten percent of rent, to keep projections realistic. For large purchases, consider reviewing the results with a financial professional.

  • Enter the purchase price, down payment, and mortgage terms.
  • Add monthly rental income and all operating expenses.
  • Review the cash flow and return figures in the results.