About
CalcFi provides 160+ free financial calculators with in-depth guides for every tool. Categories include retirement planning (FIRE number, 401k, Roth IRA), mortgage & real estate (payment, affordability, rent vs buy), tax (brackets, capital gains, estate tax, state-specific for all 50 states), debt management (payoff, consolidation, credit score), investing (compound interest, DCA, dividend income), insurance (life, home, health), salary & career (paycheck, cost of living, profession-specific for 50+ jobs), and more. Every calculator features adjustable assumptions, interactive charts, 2,000+ word educational guides, FAQs, and JSON-LD structured data. Built with Next.js, statically generated (18,673 pages), Lighthouse 95+. Zero runtime API calls — all math runs in-browser.