401(k) Retirement Calculator
Estimate your 401(k) balance at retirement and optimize your contributions
Basic Information
Projections
Results
Early Withdrawal Calculator
Withdrawal Results
Employer Match Calculator
Match Optimization
401(k) Information
A 401(k) is a form of retirement savings plan in the U.S. with tax benefits that are mainly available through an employer. It is named after subsection 401(k) in the Internal Revenue Code, which was made possible by the Revenue Act of 1978. Self-directed 401(k)s exist for people who can’t participate in employer-sponsored 401(k)s.
Pros
- Tax-deferred growth
- Employer matching contributions
- High contribution limits
- Creditor protection
Cons
- Limited investment options
- High fees in some plans
- Early withdrawal penalties
- Vesting periods may apply
Contribution Limits
For 2025, the employee contribution limit is $23,500 for those under 50, $31,000 for those 50 or older, and $34,750 for those aged 60 to 63. The total contribution limit (employee + employer) is the lesser of 100% of compensation or $69,000.
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How to Use the 401(k) Calculator:
- Enter Basic Information
- Input your current age, salary, and existing 401(k) balance.
- Set your contribution percentage and employer match details.
- Adjust Projections
- Specify your expected retirement age and life expectancy.
- Adjust salary growth, investment return, and inflation rates.
- Calculate Results
- Click “Calculate” to see your estimated retirement balance, contributions, and growth.
- Review the chart for a visual breakdown of your savings.
- Explore Additional Features
- Use the “Early Withdrawal” tab to estimate penalties and taxes.
- Try the “Employer Match” tab to optimize your contributions.
- Adjust and Recalculate
- Tweak inputs to see how changes affect your retirement savings.
This tool helps you plan for retirement by projecting your 401(k) growth and optimizing contributions. No personal data is stored.
General Questions – 401(k) Calculator
What does this 401(k) calculator do?
Our calculator helps you estimate your retirement savings growth by projecting contributions, employer matches, investment returns, and inflation over time.
How accurate are the projections?
Results are estimates based on your inputs. Actual returns may vary due to market conditions and life changes. We recommend reviewing annually.
Contribution Questions
What’s the maximum I can contribute to my 401(k)?
For 2024, the IRS limit is $23,000 ($30,500 if 50+). Our calculator automatically flags when contributions approach IRS limits.
How does employer matching work?
Employers often match a percentage of your contributions (e.g., 50% of your first 6% salary). The calculator shows how to maximize this “free money.”
Withdrawal Questions
What penalties apply for early withdrawals?
Withdrawals before age 59½ typically incur a 10% penalty plus income taxes. The Early Withdrawal tab calculates these costs.
How much can I safely withdraw in retirement?
We use the 4% rule (withdrawing 4% annually) as a baseline, but you can adjust this in the calculator.
Technical Questions
Does this calculator store my personal data?
No. All calculations happen in your browser, we never save your salary, balance, or other sensitive information.
Can I use this for Roth 401(k) accounts?
Yes. While designed for traditional 401(k)s, you can adapt it by setting future tax rates to 0% for Roth accounts.