CalcFi — The Free Financial Calculator Suite
CalcFi puts 500+ financial calculators at your fingertips, completely free. Whether you're planning a mortgage, estimating retirement savings, or figuring out compound interest, CalcFi gives you instant answers with zero sign-ups and zero ads.
What you can calculate:
Loans & Mortgages — Monthly payments, amortization schedules, refinancing comparisons, and affordability estimates
Investing & Retirement — Compound interest, 401(k) projections, FIRE planning, dividend reinvestment, and portfolio allocation
Taxes & Income — Tax brackets, take-home pay, self-employment tax, capital gains, and withholding estimates
Business & Freelance — Profit margins, break-even analysis, cash flow projections, and pricing calculators
Crypto & Trading — Position sizing, risk/reward ratios, DCA calculators, and impermanent loss estimators
Everyday Money — Tip calculators, split bills, savings goals, debt payoff planners, and budget tools
Why people choose CalcFi:
Completely free — no paywalls, no premium tiers
No account required — just open and calculate
Fast and lightweight — results in under a second
Mobile-friendly — works perfectly on any device
Privacy-first — no data collection, no tracking cookies
New calculators added regularly
CalcFi was built for anyone who wants clear, accurate financial answers without the clutter. Students, professionals, business owners, and everyday people use it daily to make smarter money decisions.