401(k) Calculator
Project your retirement savings with employer matching and contribution limits
How to Use This 401(k) Calculator
- Enter your current age and target retirement age
- Input your current annual salary and existing 401(k) balance
- Set your contribution percentage (aim for at least enough to get full employer match)
- Enter your employer match percentage and match limit
- Adjust expected return rate (7% is historically reasonable for diversified portfolios)
- Click 'Calculate 401(k) Growth' to see your projected retirement balance
Example: A 35-year-old earning $75,000, contributing 6% with a 50% employer match up to 6%, starting with $50,000 saved at 7% returns, would accumulate approximately $892,000 by age 65. The employer match alone adds over $67,000 to the final balance.
Tip: Always contribute at least enough to get your full employer match - it's an instant 50-100% return on that portion of your contribution.
Why Use a 401(k) Calculator?
A 401(k) calculator helps you visualize decades of retirement savings growth and make strategic contribution decisions.
- Determine how much you'll have at retirement based on current contribution rates
- Calculate the true value of your employer match over your career
- Compare the impact of contributing 6% vs 10% vs maxing out contributions
- See how starting earlier (or later) affects your retirement outcome
- Plan for catch-up contributions if you're 50 or older
- Model the cost of early withdrawals on your long-term savings
Understanding Your Results
Your projected 401(k) balance depends on contributions, employer match, investment returns, and time. Here's how to evaluate your results.
| Result | Meaning | Action |
|---|---|---|
| Balance 10x+ final salary | Excellent retirement position | On track for comfortable retirement; consider diversifying with Roth contributions |
| Balance 6-10x final salary | Good progress | Continue current contributions; look for opportunities to increase |
| Balance 3-6x final salary | Needs attention | Increase contributions if possible; consider delaying retirement |
| Balance under 3x final salary | Behind target | Maximize contributions; use catch-up contributions if 50+; consult financial advisor |
Meaning: Excellent retirement position
Action: On track for comfortable retirement; consider diversifying with Roth contributions
Meaning: Good progress
Action: Continue current contributions; look for opportunities to increase
Meaning: Needs attention
Action: Increase contributions if possible; consider delaying retirement
Meaning: Behind target
Action: Maximize contributions; use catch-up contributions if 50+; consult financial advisor
Note: Most financial advisors recommend saving 10-12x your final salary by retirement. These projections assume consistent contributions and average market returns.
About 401(k) Calculator
Formula
FV = PV(1+r)^n + PMT × [((1+r)^n - 1) / r] Where FV is future value, PV is present value (current balance), r is periodic return rate, n is number of periods, and PMT is periodic contribution (including employer match).
Current Standards: 2026 contribution limits: $24,500 under age 50, $32,000 for ages 50-59 and 64+, $35,750 for ages 60-63 (enhanced catch-up). Combined employee/employer limit: $73,500 ($81,250 for 50+).
Frequently Asked Questions
How much should I contribute to my 401(k)?
At minimum, contribute enough to get your full employer match - anything less leaves free money on the table. Ideally, aim for 10-15% of your salary including the employer match. If you can afford it, maxing out contributions ($24,500 in 2026, or $32,000+ if 50+) accelerates wealth building significantly.
What's the real value of employer matching?
Employer matching is essentially free money with an instant return. A 50% match on 6% of salary means if you contribute $4,500, your employer adds $2,250 - that's a 50% return before any investment gains. Over 30 years with 7% returns, that annual $2,250 match could grow to over $200,000.
Should I choose Traditional or Roth 401(k)?
Choose Traditional if you expect to be in a lower tax bracket in retirement than now - you get the tax break when your rate is higher. Choose Roth if you expect higher future taxes or want tax-free retirement income. Many experts recommend splitting contributions between both for tax diversification.
What happens if I withdraw early from my 401(k)?
Withdrawals before age 59.5 typically trigger a 10% penalty plus income taxes. A $20,000 early withdrawal might net you only $13,000-14,000 after penalties and taxes. Exceptions include the Rule of 55 (leaving employer at 55+), disability, and SEPP distributions.
How do vesting schedules affect my 401(k)?
Vesting determines when you own employer contributions. Immediate vesting means you own matching contributions right away. Graded vesting (e.g., 20% per year over 5 years) means leaving early forfeits unvested amounts. Cliff vesting gives you 0% until a specific date, then 100%. Your own contributions are always 100% vested.