Built for the deal you almost made.
realestatecalc is a free toolkit of ten real estate calculators that synthesize into one AI verdict — PASS, STRETCH, or DIFFICULT — so you can decide on a property in sixty seconds, not a Saturday.
Every property listing tells you the price. Almost none of them tell you what the price means. Is a 4.8% cap rate good in Phoenix? Does an $1,800/mo rent cover the mortgage at today's rate? Will it cash-flow in year two when the rate cap expires?
The standard answer is: open a spreadsheet, plug in twelve numbers, look up four assumptions, and hope you remembered the property-tax rate for that county. Most people don't bother. They look at the listing, look at their down payment, and tour the property anyway.
realestatecalc collapses that workflow to one screen. Enter what you know, accept the federal defaults for what you don't, and the math runs in real time. Want a second opinion? Buy the AI verdict for $19 — Claude reads your inputs against current rates, rent trends, and property tax medians, and tells you whether the deal pencils.
We don't take affiliate fees from mortgage lenders, insurance brokers, or property managers. Every formula is published; every default is sourced.
All 10 calculators run free with live recompute. The $19 AI verdict is one-time and optional — buy it when you're evaluating a specific property, not as a monthly subscription.
Mortgage rates from FRED, property tax medians from the Census, rent CPI from BLS. No marked-up Zillow estimates, no aggregator data.
Every calculation runs client-side. We don't store the price you're considering, the address, or your assumptions — unless you opt to save a scenario.
Every default in every calculator is pulled from a public federal data source. If you want the full breakdown of every formula and assumption, see /methodology.
30-year fixed mortgage rate, published weekly by Freddie Mac via the St. Louis Fed.
Effective property tax rate by state median (ACS 5-year estimate).
"Rent of primary residence" CPI sub-index — drives rent-growth scenarios.
realestatecalc is run by one independent developer. No VC, no SEO team, no growth hackers. The roadmap is set by whatever calculator a real prospective buyer asked for last week.
Questions, bug reports, or feature requests? Email hi@realestatecalc.com — every message is read by a human (me).