401(k) Retirement Calculator

Project your retirement savings with compound growth and employer matching

Your Information
Employer matches up to this % of your salary
Historical S&P 500 average: ~10% nominal, ~7% real

📚 Understanding 401(k) Plans

A 401(k) is an employer-sponsored retirement savings plan that allows you to contribute pre-tax dollars from your paycheck, invest them for tax-deferred growth, and withdraw in retirement.

Frequently Asked Questions

How much should I contribute to my 401(k)?
At least enough for full employer match. Target 10-15% of gross income. 2024 limit: $23,000 ($30,500 age 50+). Start early — 10% from age 25 at 7% returns = $1M+ by 65 on $60k salary.
How does employer matching work?
Common formulas: dollar-for-dollar on first 3-6%, or 50% match on first 6%. On $80k salary with 50% match on 6%: you contribute $4,800, employer adds $2,400. Vesting required to keep match.
What is the average 401(k) balance by age?
25-34: ~$37k avg/$15k median; 35-44: ~$97k/$37k; 45-54: ~$179k/$70k; 55-64: ~$256k/$108k. Fidelity recommends 1x salary by 30, 3x by 40, 6x by 50, 8x by 60.
Traditional vs. Roth 401(k)?
Traditional: pre-tax contributions, taxed withdrawals. Best if lower tax bracket in retirement. Roth: after-tax contributions, tax-free withdrawals. Best if higher taxes expected. Many do a mix for flexibility.
Can I withdraw before retirement?
Before 59½: income tax + 10% penalty. Exceptions: hardship, first home ($10k), disability, 72(t) payments. Loans allowed up to $50k or 50% of balance. New: $1,000/year emergency withdrawals penalty-free.
What happens to my 401(k) if I change jobs?
Options: leave with old employer, roll to new 401(k), roll to IRA, or cash out (not recommended — taxes + penalty). Direct rollover avoids taxes. Consider fees, options, and creditor protection.
What is the 2024 contribution limit?
$23,000 employee ($30,500 age 50+). Total limit (employee + employer): $69,000 ($76,500 age 50+). Highly compensated employees ($155k+) may face additional testing limits.
How much do I need to retire?
25x rule: save 25× annual expenses. 4% rule: withdraw 4% annually for 30+ years. Fidelity: 10× final salary. On $60k/year expenses, target ~$1.5M. Varies by lifestyle, Social Security, and healthcare.

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