Free · No sign-up · Run the numbers before you buy
Know if a rental actually cash-flows.
Real estate math decides whether a deal makes you money or drains it. These calculators give you cash flow, cap rate, and cash-on-cash return in seconds — no spreadsheet.
Open the Rental Property Calculator →Tools
- Rental Property CalculatorMonthly cash flow, cap rate, and cash-on-cash return on a rental — the complete deal analysis.
- Mortgage CalculatorMonthly payment, total interest, and payoff — with taxes and insurance for the full PITI.
- Cap Rate CalculatorNet operating income ÷ price — compare properties apples-to-apples, financing aside.
- Rent vs Buy CalculatorWhether renting or buying wins over your time frame. Coming soon.
- BRRRR CalculatorBuy, rehab, rent, refinance — and what you pull back out. Coming soon.
- 70% Rule (Fix & Flip)The max to pay for a flip based on ARV and repairs. Coming soon.
Why the numbers matter more than the property
A beautiful house can be a terrible investment, and an ugly one can print cash. What separates them is the math: rent minus the mortgage, taxes, insurance, vacancy, maintenance, and management. Miss a few of those "hidden" costs and a deal that looked like $300/month of cash flow is actually losing money. These tools force every cost into the open so you buy on facts, not vibes.