Run the numbers before you make the offer.
Every calculator here uses honest defaults and shows its work, so you can see where a number comes from instead of trusting a black box. Free to use, free to embed on your own site, and none of them ask for your email.
DSCR Calculator
Divide rent by the full payment and see the ratio a lender will underwrite, plus cash flow and a five-year projection.
Open calculatorRental Property Calculator
Cash flow, cash-on-cash return, cap rate, and DSCR on one screen, with unrealized appreciation kept in its own column.
Open calculatorCap Rate Calculator
Build net operating income from honest expenses, then read the unlevered yield, GRM, and what the income is worth at any market cap rate.
Open calculatorFix & Flip Calculator
Get your maximum allowable offer under the 70% rule, then net profit and return on the cash you actually put in.
Open calculatorBRRRR Calculator
See how much capital the refinance hands back, what stays trapped in the deal, and whether the property still cash-flows after.
Open calculatorConstruction Loan Calculator
Size a ground-up loan on the lesser of loan-to-cost and loan-to-value, see which cap binds, and price the carry on the balance draws actually leave outstanding.
Open calculatorProrated Rent Calculator
Work out a partial month of rent for a mid-month move-in or move-out, on whichever proration method the lease uses.
Open calculatorNot sure which one you need?
Each calculator answers a different question, and the order you ask them in decides how much time you waste on deals that were never going to work. How to analyze a rental deal walks the sequence and routes each question to its tool.
Put these on your own site
Agents, property managers, and investor educators can embed any of these calculators free with one line of HTML. They size themselves to your page, carry your branding on the partner plan, and keep working as we improve them.
See the partner programNumbers work? Price the deal.
A calculator estimates. The desk prices the real thing from lending partners' sheets, on the property's cash flow.
Start in about 60 seconds · No tax returns · No W-2s