Retirement Calculators
9 calculators in Finance. Each one shows its formula and a worked example, and most list the sources behind them.
Calculators, A to Z
401(k) Calculator
Your 401(k) balance at retirement, year by year: your contributions, the employer match on them, raises, IRS limits, fees and today's dollars.
401(k) Employer Match Calculator
What your employer adds to your 401(k) this year, the share of pay that gets all of it, the 2026 limits, the match a paycheck plan can miss, and vesting.
401(k) Max Contribution Limit Calculator
Your 401(k) contribution limit for 2026 by age with catch-up, the amount per paycheck that reaches it and the percentage of pay it takes.
CalPERS Safety Retirement Calculator
Find your CalPERS state or local safety pension from the 18 official benefit factor charts, with the 80% or 90% cap and a working-longer view.
Excess 401(k) Deferral Correction Calculator
Find the excess 401(k) deferral across several employers, the income that must come out with it and the amount taxed twice if it is not removed by April 15.
Inherited IRA RMD Calculator
Required minimum distributions from an inherited IRA under the 10-year, life expectancy, spouse and 5-year rules, year by year, with the tax on each pace.
Pension Calculator
Pension from years of service, your plan's percentage and final average pay, with FERS and CalPERS formulas, survivor options, COLA and a lump sum's worth.
Roth vs Traditional Calculator
Compare after-tax retirement wealth from a Roth versus a Traditional 401(k) or IRA at your current and retirement tax rates, with reinvested tax savings.
Social Security Spousal and Survivor Calculator
Spousal benefits (up to 50% of PIA), survivor checks (71.5% to 100% of the deceased's benefit), household income before and after death, and the $255 lump sum.
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