Free cap rate calculators and data-driven rental property analysis for 775+ US markets.
CapRateCity exists because rental property investing shouldn't require expensive software or paid subscriptions just to run basic numbers. Every investor — from someone analyzing their first duplex to a portfolio owner expanding into new markets — deserves free access to the same data and tools that institutional investors use.
We track 775 metro-level markets across 51 states, providing cap rate estimates, cash flow projections, and investment analysis that's updated with each Zillow data release. Every calculator on this site is free, requires no signup, and runs entirely in your browser.
CapRateCity is built and maintained by Jacob McEwen, a software engineer and real estate data analyst who got frustrated with the lack of free, accurate, city-level rental property data online. Most "cap rate" searches return generic articles with no actual data, or paywalled platforms that charge $50-$200/month for basic market metrics.
We built what we wished existed: a free tool that lets you compare cap rates, run cash flow projections, and analyze deals across every major US market — all in one place, with real data, and without paying a dime.
Accuracy matters. Bad data leads to bad investment decisions. That's why we use institutional-grade sources:
Cap rate = Net Operating Income (NOI) / Purchase Price. Our NOI calculation uses conservative, industry-standard assumptions:
We intentionally use conservative expense estimates. Real-world expenses vary by property condition, age, and location — but our estimates provide a realistic baseline that's far more accurate than gross rent multiplier calculations that ignore operating costs entirely.
CapRateCity provides market-level estimates based on metro-area median data. Individual properties, neighborhoods, and deals can vary significantly from metro medians. Our tools are designed for market screening and preliminary analysis — not as a substitute for property-specific due diligence.
We are not licensed real estate agents, brokers, financial advisors, or tax professionals. The information on this site is for educational and informational purposes only. Always consult qualified professionals before making investment decisions. Past performance and historical data do not guarantee future results.
Some links on this site are affiliate links. If you purchase a product or service through an affiliate link, we may earn a commission at no extra cost to you. We only recommend tools we believe are genuinely useful for rental property investors. Affiliate relationships never influence our data, rankings, or editorial content.
CapRateCity is part of a suite of free financial tools for real estate investors and homeowners:
Questions, feedback, or data corrections? We want to hear from you. Reach us through The Numbers Letter or connect via the email signup below.