About PropertyFlowTools.com
PropertyFlowTools.com provides free, browser-based real estate investment calculators for rental property investors, landlords, house hackers, and BRRRR investors.
Instant Results
Results update as you type — no waiting, no page reloads.
Private Calculations
Calculator inputs stay in your browser and are not sent to our servers.
Transparent Formulas
Every calculator shows its methodology, formulas, and assumptions.
No Paywall
All calculators are free. No premium tier, no email required.
Our Philosophy
Real estate investment analysis doesn't require expensive software, a paid subscription, or creating yet another account. All the math needed to evaluate a rental property deal can be done in a browser.
We believe that access to good analytical tools should not be restricted by ability to pay.
Methodology and Editorial Standards
Calculator outputs are based on standard real estate investment formulas such as net operating income, cash flow, cap rate, cash-on-cash return, debt service coverage ratio, gross rent multiplier, and mortgage amortization.
When a calculator includes examples or benchmark language, it is intended to explain how the metric works rather than predict whether a specific property is a good investment. Pages are reviewed when formulas, assumptions, or site functionality change, and each calculator lists important limitations near the results.
What We Are Not
- • Not a financial advisor, tax advisor, or legal advisor
- • Not a lender or mortgage broker
- • Not affiliated with any real estate platform or marketplace
- • Not a property data provider (we use user-entered data only)
Privacy
PropertyFlowTools.com does not require accounts or transmit your financial inputs to our servers. All calculations are performed locally in your browser. Saved deals are stored using browser localStorage and remain entirely on your device.
If you contact us through the contact page, your message is submitted through our third-party form provider so we can receive and respond to it.
Sharing a deal URL embeds your inputs as URL parameters. Do not include sensitive personal information in deal names if you intend to share the URL publicly.
Contact
For feedback, bug reports, or general inquiries, please use our contact page.
Educational Disclaimer
All calculations are estimates for educational and planning purposes only. PropertyFlowTools.com does not provide financial, tax, legal, lending, or investment advice. Verify calculations and consult qualified professionals before making property or financing decisions.