Free for any site
Two lines of HTML adds a working investor calculator to any page. No API key, no signup, no rate limits, no cost. Built for real estate blogs, brokerages, DSCR lenders, and property management sites.
Drop the script tag once, anywhere on the page. Then place a div wherever you want a calculator to appear — you can put several on the same page.
Each preview below is the real embed, running live on this page.
Net operating income divided by purchase price — the standard yardstick for comparing rental properties.
Debt service coverage ratio — the number lenders underwrite rental loans against.
Annual pre-tax cash flow divided by the cash you actually put in.
Full deal analysis — mortgage, cash flow, cap rate, cash-on-cash, and DSCR in one pass.
Buy, rehab, rent, refinance, repeat — how much capital comes back out.
The 10-second screen — does monthly rent hit 1% of purchase price?
Price divided by annual gross rent — a fast comparison metric across similar properties.
Each calculator renders a small “by CompPilot” credit link underneath it. Please leave it in place — that link is what makes the tool free. Everything else is yours to use however you like, on as many pages and sites as you want, for as long as you want.
If you want different defaults, a specific metric, or a calculator we haven't built, email support@comppilot.ai and we'll usually build it.
Also available: a rent estimator widget that returns live comparable-rental data for any US address.
See the rent estimator widget →Free plan includes 5 complete rental reports a month. No card required.
Create a free account