Real Estate Investor Toolkit
Run the numbers before you make the offer.
Fast, free, no-signup calculators built for buy-and-hold landlords, flippers, and BRRRR investors. Plug in the deal, get the metrics that actually decide it.
Featured tool
Try the cap rate calculator right here — it runs entirely in your browser. Open the full page for the worked example and FAQ.
The calculators
Each one is instant and works entirely in your browser — nothing is stored or sent anywhere.
Cap Rate Calculator
Net operating income ÷ price. The fastest read on whether a rental is priced right.
Open calculator ReturnsCash-on-Cash Calculator
Annual cash flow vs. the cash you actually put in — the number that matters with a loan.
Open calculator ReturnsRental Property ROI
Cash flow, cap rate, cash-on-cash, and first-year total return in one view.
Open calculator Screening1% Rule Calculator
Does the rent clear 1% of the all-in cost? The five-second deal filter.
Open calculator Short-termAirbnb / STR Calculator
Monthly cash flow and annual revenue from nightly rate and occupancy.
Open calculator StrategyBRRRR Calculator
Buy, rehab, rent, refinance, repeat — model the full cycle and the cash left in the deal.
Open calculator FlippingFix & Flip Calculator
Net flip profit and ROI after rehab, holding, financing, and selling costs.
Open calculator Flipping70% Rule Calculator
Maximum allowable offer for a flip, from ARV and repair costs. Don't overpay.
Open calculator FinancingDSCR Calculator
Debt service coverage ratio for investor financing without tax returns.
Open calculator FinancingHard Money Loan
Interest-only payment, points, and the all-in cost of short-term financing.
Open calculator FinancingMortgage Recast Calculator
See your new payment and monthly savings after a lump-sum principal paydown.
Open calculator FinancingReverse Mortgage
Estimate the proceeds a HECM could free from your home equity.
Open calculatorWhy investors use Ledgerstone
Most deals die — or should — on a single screen of math. Ledgerstone gives you that math instantly, with the same formulas lenders, appraisers, and seasoned investors use. No accounts, no upsells, no spreadsheets to maintain.
- Instant & private: everything runs in your browser. Your numbers never leave your device.
- Built for US investors: dollar figures, standard amortization, and conventions that match how American deals are written.
- Honest defaults: we pre-fill realistic example numbers so you can see how each tool behaves, then replace them with your deal.