Cap Rate Calculator
NOI ÷ all-in cost. How a rental performs on its own, before the mortgage.
The ZIP includes the tool, instructions, license and example project.Cap rate + NOI
- All-in cost
- Monthly rent
- Operating expenses
- Vacancy
| Gross annual rent | $21,600 |
| − Vacancy | −$1,080 |
| − Operating expenses | −$5,400 |
| NOI / year | $15,120 |
- One HTML file — double-click to open in Chrome, Edge, Firefox or Safari. No install.
- Works fully offline. No account, no subscription, nothing sent anywhere.
- Bilingual — switch English / Spanish with one click.
- Save unlimited scenarios (one property each) and compare them side by side.
- Save / Open your work as a file you own — Documents, Dropbox, USB.
- Clean one-page Print / PDF report.
- Instructions in English and Spanish, license and example file included.
HOW CAP RATE WORKS
Cap rate is Net Operating Income (rent minus vacancy and operating expenses, before any mortgage) divided by the property's all-in cost. It tells you how the asset performs on its own, without leverage — useful for comparing deals apples-to-apples. A higher cap rate means more income per dollar invested, but often more risk; compare against cap rates for similar properties in the same market.
CRIM Property Tax Estimator
Estimate the annual CRIM contribución from the assessed (1957) value, exemption and your municipality's rate — before you buy, bid or sign.
Max Bid Calculator
The most you can bid and still hit your minimum profit. Write it down before the auction — never bid a dollar past it.
Fix & Flip Calculator
Net profit and ROI from purchase, rehab, holding, closing, ARV and selling costs — the costs beginners forget, included.
BRRRR Calculator
How much cash you pull back out at the refinance, and whether the property still cash-flows after.