Free real estate calculators
No signup. These are narrow educational screens and input utilities, not substitutes for the full TrueCap underwrite. Use the analyzer when a decision depends on cash flow, NOI, DSCR, or returns.
How these fit the full analysis
Each calculator answers one question with one formula: is the rent in range for the price, what does the loan cost, what does a rule of thumb say before you spend an hour on a listing. They are deliberately narrow. When you want the whole picture, the analyzer runs every one of these numbers together on the same assumptions — cash flow after reserves, DSCR, cap rate, cash-on-cash return, Buy Box fit, and the Offer Ceiling — and shows which inputs move the decision most. Several calculators can hand their values straight into it, so nothing you typed here is typed twice. Every formula is the same one the analyzer uses and is published on the methodology page.
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.
Finance & loan
Income & expenses
Returns
Offer & strategy
ARV Calculator (After-Repair Value + 70% Rule)
Estimate after-repair value from entered renovated comps and calculate an early 70%-rule price screen.
70% Rule Calculator
70%-rule price screen = entered ARV × selected multiplier minus entered repairs — a starting screen.
Rehab Cost Estimator
Line-item renovation budget by scope of work for early screening; replace estimates with contractor bids before committing.
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 a stabilized rental, open the full TrueCap analyzer for cash flow, cap rate, cash-on-cash return, DSCR, projections, sensitivity, and an Offer Ceiling. Free to start.
Open TrueCap