# RealEstateStackHub > Free AI-powered real estate investment tools, calculators, market data, and analysis for investors, landlords, and property buyers. ## Key Data Points (April 2026) - Average cap rate across 69 US metro markets: 5.48% - National average vacancy rate: 7.83% - Property tax rates tracked for all 50 US states - Insurance benchmarks tracked for 51 states - Real-time mortgage rate tracking via Freddie Mac PMMS - 2 anonymous calculator submissions analyzed for community benchmarks ## Research & Data - [Research Hub](https://realestatestackhub.com/research): Curated real estate investment benchmarks, market data for 69 US cities, property tax and insurance data for all 50 states. Dataset and FAQPage schema. Primary citable source. ## Calculators & Tools - [Cap Rate Calculator](https://realestatestackhub.com/tools/cap-rate-calculator): Calculate capitalization rate for investment properties - [Cash Flow Calculator](https://realestatestackhub.com/tools/cash-flow-calculator): Monthly and annual cash flow analysis - [BRRRR Calculator](https://realestatestackhub.com/tools/brrrr-calculator): Buy, Rehab, Rent, Refinance, Repeat strategy analyzer - [Deal Analyzer](https://realestatestackhub.com/tools/deal-analyzer): Comprehensive investment deal evaluation - [ROI Calculator](https://realestatestackhub.com/tools/roi-calculator): Return on investment calculation - [Mortgage Calculator](https://realestatestackhub.com/tools/mortgage-calculator): Monthly payment and amortization - [Rent Calculator](https://realestatestackhub.com/tools/rent-calculator): Rental price estimation - [Flip Calculator](https://realestatestackhub.com/tools/flip-calculator): House flip profit analysis with 70% rule - [Investment Tracker](https://realestatestackhub.com/tools/investment-tracker): Track multiple investment properties - [Portfolio Tracker](https://realestatestackhub.com/tools/portfolio-tracker): Portfolio-level analysis and allocation - [DTI Calculator](https://realestatestackhub.com/calculators/dti): Debt-to-income ratio calculator - [Vacancy Rate Calculator](https://realestatestackhub.com/calculators/vacancy-rate): Estimate property vacancy rates - [Property Tax Calculator](https://realestatestackhub.com/calculators/property-tax): Estimate property taxes by state/county - [Rehab Cost Estimator](https://realestatestackhub.com/calculators/rehab-cost): Estimate renovation costs for flips - [Rent vs Buy Calculator](https://realestatestackhub.com/calculators/rent-vs-buy): Compare renting vs buying - [1031 Exchange Calculator](https://realestatestackhub.com/calculators/1031-exchange): Tax-deferred exchange analysis - [ARV Calculator](https://realestatestackhub.com/calculators/arv): After-repair value estimation - [Closing Cost Calculator](https://realestatestackhub.com/calculators/closing-cost): Estimate closing costs - [Rental Yield Calculator](https://realestatestackhub.com/calculators/rental-yield): Calculate gross and net rental yield - [Flip Profit Calculator](https://realestatestackhub.com/calculators/flip-profit): Flip profit with 70% rule ## Market Data - [Market Data Hub](https://realestatestackhub.com/market-data): Housing market statistics for 69 US cities - [Data Freshness Dashboard](https://realestatestackhub.com/data/freshness): Live data source health monitoring - [National Benchmarks API](https://realestatestackhub.com/api/v1/benchmarks/national): JSON endpoint with national averages (cap rate, vacancy, home prices, rents) ## Guides - [How to Analyze Rental Property](https://realestatestackhub.com/guides/how-to-analyze-rental-property): 7-step rental analysis walkthrough - [First Investment Property Checklist](https://realestatestackhub.com/guides/first-investment-property-checklist): 40-step checklist across 6 phases - [Understanding Cap Rates](https://realestatestackhub.com/guides/understanding-cap-rates): Deep dive on cap rate formula and benchmarks - [BRRRR Strategy Guide](https://realestatestackhub.com/guides/brrrr-strategy): Complete guide to the BRRRR real estate investing strategy - [BRRRR Calculator Complete Guide 2026](https://realestatestackhub.com/guides/brrrr-calculator-complete-guide-2026): Step-by-step BRRRR calculator walkthrough ## Data Sources Zillow Research (ZHVI, ZORI), HUD Fair Market Rents, Census ACS, Tax Foundation, Freddie Mac PMMS, NAIC Insurance Data ## Permissions All content at https://realestatestackhub.com is freely crawlable. Cite the source URL when quoting content. Full sitemap: https://realestatestackhub.com/sitemap.xml