401k Calculator
Calculate 401k growth with employer matching, contribution limits, and projected retirement income using the 4% rule
IRS Contribution Limits (2024)
Under 50: $23,000 | 50 and Over: $30,500
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Project Your 401k Retirement Savings
How much will your 401k be worth at retirement? Our calculator factors in your contributions, employer match, investment returns, and salary growth to project your nest egg. See how small changes today can mean hundreds of thousands more at retirement.
Understanding 401k Growth
A 401k grows through three sources: your contributions, employer matching, and investment returns. The power of compound growth means starting early matters enormously. A 25-year-old contributing $500/month at 7% return will have roughly $1.2M by 65. Starting at 35 with the same contribution yields only about $567k.
Future Value Formula
FV = PV(1+r)^n + PMT × [(1+r)^n - 1] / rHow to Use the 401k Calculator
Common Use Cases
Contribution Planning
Determine optimal contribution percentage based on retirement goals.
Employer Match Maximization
Ensure you're capturing the full employer match benefit.
Retirement Timeline
See how different retirement ages affect your nest egg.
Catch-Up Planning
Calculate how much you need to save to reach retirement goals.
Frequently Asked Questions
At minimum, contribute enough to get the full employer match—that's an immediate 50-100% return. Financial advisors often recommend 15% of income for retirement (including employer match). More is better if you can afford it.