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.
BRRRR CalculatorBuy, rehab, rent, refinance — see your cash left in the deal and cash-on-cash return.
70% Rule CalculatorThe max you should pay for a flip, based on after-repair value and repair costs.
Rent vs Buy CalculatorThe real cost of renting vs buying over time — with equity, appreciation, and your break-even year.
Down Payment & PMI CalculatorYour loan, LTV, and monthly PMI — plus exactly when PMI cancels and what it costs in total.
Refinance Break-Even CalculatorNew payment, monthly savings, and how many months to recover closing costs.
1% Rule CalculatorScreen a rental fast — rent-to-price ratio vs the 1% and 2% rules, plus a 50% rule check.

Rent vs buy by state

Property tax and insurance are the biggest state-driven swing in the buy decision. See how your state stacks up — and open the calculator pre-filled.

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.