Free Online Calculators
Finance, FIRE planning, real estate, health, education, and everyday math. No signup. No tracking. Just tools that work.
Finance Calculators
401(k) Employer Match Calculator
See how much employer match you're capturing, what you're leaving on the table, and the long-term cost of uncaptured free money
Capital Gains Tax Calculator 2026
Calculate your federal capital gains tax, NIIT surcharge, and state tax — with a full bracket breakdown
Dividend Reinvestment (DRIP) Calculator
See how reinvesting dividends compounds your share count and portfolio value vs. taking dividends as cash
FIRE Calculators
Barista FIRE Calculator
Find the portfolio size you need to semi-retire — combining part-time income with smaller portfolio withdrawals
Mega Backdoor Roth Calculator
Find your available contribution space and see how tax-free growth stacks up against a taxable account
Roth Conversion Calculator 2026
See whether converting traditional IRA or 401(k) funds to Roth makes sense — and how much you'd gain or lose based on your current vs. expected retirement tax rates