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401(k) Retirement Calculator

Balance at retirement
$2,104,194.62
Retirement income /mo
$7,013.98
4% rule
Years to grow
35
Your contributions$423,234.57
Employer match$126,970.37
Investment growth$1,538,989.68
2024 IRS employee limit$23,000 (+$7,500 catch-up 50+)

How to use the 401(k) Calculator

  1. Enter current age, planned retirement age, salary and current 401(k) balance.
  2. Set your contribution % and employer match structure (e.g. 50% match up to 6% of salary).
  3. Enter salary growth and expected annual investment return (7% is the long-term S&P average).
  4. Read balance at retirement plus estimated monthly income using the 4% safe-withdrawal rule.
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Getting the full match is a 50–100% instant return

If your employer matches 50% of the first 6% and you contribute 3%, you leave half the match on the table. That's a permanent 3% pay cut.

Max contributions ($23,000 in 2024, plus $7,500 catch-up over 50) grow tax-deferred. At 7% for 30 years, $23k/year becomes $2.3M.

The 4% rule says you can withdraw 4% of your balance annually with historically zero chance of running out over 30 years. $2M → $80k/year income.