Finance
Rental Property Calculator
Analyze real estate investments by calculating cash flow, Cap Rate, and Gross Rent Multiplier.
How to Use
- Enter the Property Price, your Down Payment percentage, and expected Mortgage Rate (assuming a 30-year term).
- Enter your projected Monthly Rent. The Vacancy Rate deducts a percentage from this gross rent to account for empty months.
- Enter all Monthly Operating Expenses. Do not include the mortgage payment here; the calculator computes it automatically.
- Review the resulting Cash Flow, Cap Rate, and GRM to determine if the investment meets your criteria.
Formula
Real Estate Metrics:
Gross Operating Income (GOI) = Rent × (1 - Vacancy Rate)
Net Operating Income (NOI) = GOI - Total Operating Expenses
Cash Flow = NOI - Mortgage Debt Service
Cap Rate = (Annual NOI / Property Price) × 100
Gross Rent Multiplier (GRM) = Property Price / Annual Gross Rent
Gross Operating Income (GOI) = Rent × (1 - Vacancy Rate)
Net Operating Income (NOI) = GOI - Total Operating Expenses
Cash Flow = NOI - Mortgage Debt Service
Cap Rate = (Annual NOI / Property Price) × 100
Gross Rent Multiplier (GRM) = Property Price / Annual Gross Rent
The Rental Property Calculator is essential for real estate investors. It goes beyond simple mortgage math to determine true Net Operating Income (NOI) and calculates industry-standard metrics like Cap Rate and Gross Rent Multiplier to evaluate investment viability.