I recently launched Fi-Calc — a free suite of 14 financial calculators that runs entirely in the browser.
No signups. No ads. No data collection. Just tools that help you make better money decisions.
The Calculators
- Mortgage Calculator — Monthly payments, total interest, amortization
- Compound Interest — See the power of compounding
- Investment Returns — CAGR, total return, inflation-adjusted
- Retirement Calculator — How much you need to save
- 401(k) Calculator — Employer match and tax benefits
- Loan Amortization — Full schedule with extra payments
- Debt Payoff — Snowball vs. avalanche comparison
- Rent vs. Buy — Compare renting vs. buying
- Savings Goal — How long to reach your target
- Emergency Fund — How much you really need
- APR Calculator — True cost of borrowing
- Dollar Cost Averaging — Model regular investment strategies
- Social Security Calculator — Estimate your benefits
- CD Ladder Calculator — Maximize CD returns
Tech Stack
Pure HTML/CSS/JS, no frameworks. 100% client-side computation — your data never leaves your browser.
All calculators are free at fi-calc.com.
Would love your feedback and suggestions for new calculators!
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