Free real estate calculators

No signup. Same math that powers the full TrueCap analyzer — packaged as single-purpose tools so you can answer one question in seconds.

Screen a deal

1% Rule Calculator

Pass/fail rental screening filter in 5 seconds.

2% Rule Calculator

The strict cash-flow screen — rent-to-price against the 2% and 1% bars.

Gross Rent Multiplier (GRM) Calculator

The 10-second screening ratio for triaging rental deals.

Break-Even Calculator

Months until rental cash flow returns your initial investment.

50% Rule Calculator

3-second expense triage — estimated expenses, NOI, and cash flow from gross rent.

Finance & loan

DSCR Calculator

Debt Service Coverage Ratio — the metric every investment-property lender uses.

Mortgage Payment Calculator

PITI breakdown — principal, interest, taxes, insurance — for investment loans.

Closing Cost Calculator

Line-item closing costs on a rental purchase.

Income & expenses

NOI Calculator

Net Operating Income with every common operating-expense category.

Vacancy Rate Calculator

Effective vacancy rate from vacant days + turnover cost.

Rental Property Tax Calculator

Schedule E income, 27.5-year depreciation, after-tax cash flow.

Returns

Rental Property Cash Flow Calculator

Monthly cash flow after every operating expense and the mortgage — with the NOI / debt-service split.

Cap Rate Calculator

Capitalization rate from price, rent, and operating expenses.

Cash-on-Cash Return Calculator

Return on the actual cash invested in a rental.

Rental Property ROI Calculator

Total return — cash flow + principal paydown + appreciation in one number.

Offer & strategy

BRRRR Calculator

Buy, Rehab, Rent, Refinance — model the full strategy in one view.

ARV Calculator (After-Repair Value + 70% Rule)

Entered after-repair value plus a 70%-rule Offer Ceiling screen for flips and BRRRR; verify comps, repairs, and all costs.

House Hacking Calculator

Live in one unit, rent the rest — your effective housing cost after tenant rent.

70% Rule Calculator

70%-rule Offer Ceiling = entered ARV × selected multiplier minus entered repairs — a starting screen, not a recommended offer.

Rehab Cost Estimator

Line-item rehab budget by scope of work — the rehab number that feeds BRRRR + flip.

Learn the math behind the calculators

Want to understand what these tools are actually computing? Our step-by-step guides walk through how to calculate cap rate, how to calculate cash-on-cash return, how to calculate DSCR, and how to calculate NOI — or see all the pieces come together in how to underwrite a rental property in 60 seconds.

Want the full picture?

Single-purpose calculators are great for triaging deals. When you're ready to underwrite — cash flow, projections, tax savings, a secondary Screening Index, exit scenarios, BRRRR, fix-and-flip — open the full TrueCap analyzer. Free to start.

Open TrueCap