Free tools
Real estate investing calculators.
Run the core numbers in your browser — no signup, no email. Each tool shows its formula and a worked example, so you learn the math, not just the answer.
Calculator
Cap rate calculator
Net operating income and cap rate from price, rent, vacancy, and expenses.
CalculatorRental cash flow calculator
Monthly cash flow, cash-on-cash return, and a 1% rule check from price, loan, rent, and expenses.
Calculator70% rule calculator
Your maximum offer on a flip or BRRRR from the ARV and rehab cost.
CalculatorBRRRR calculator
Cash out at the refi, cash left in the deal, and post-refi cash flow from purchase, rehab, and ARV.
CalculatorDoor value calculator
For property managers: annual revenue and lifetime value per door from rent, fees, and average owner tenure.