FIRE Calculators

Free calculators for the Financial Independence, Retire Early community. Find your FIRE number, Coast FIRE milestone, safe withdrawal rate, and more.

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

Social Security Break-Even Calculator

Find the age where claiming Social Security later pays off more than claiming early — based on your FRA benefit and expected lifespan

Coast FIRE Calculator

Find out when you can stop saving for retirement and let compound interest do the rest