401k Calculator
Free 401k calculator 2026. Employer match, contribution limits, catch-up. See retirement readiness & 4% rule income.
401k Calculator - Calculate Your 401k Growth & Retirement Savings 2025
Use our free 401k retirement savings calculator online to calculate 401k growth instantly with employer match. See 2025 contribution limits and discover how much you need to save for retirement. Includes tax savings, catch-up contributions, and retirement readiness analysis. No login required.
Calculate 401k Growth Instantly - Age & Retirement Timeline
Salary & Contributions
2-3% is typical
Employer Match
e.g., 50 for "50% match"
e.g., 6 for "up to 6% of salary"
Your employer matches 50% of your contributions up to 6% of your salary.
Example: If you contribute 6% or more, employer adds $2,250/year
Investment & Tax Assumptions
7-8% typical for balanced portfolio
0.2-0.8% for index funds
Your projected balance exceeds the recommended benchmark by 178%
2025 401k Contribution Limits
| Age Group | Limit | Catch-Up |
|---|---|---|
| Under 50 | $23,500 | — |
| 50-59 | $31,000 | +$7,500 |
| 60-63 (New!) | $34,750 | +$11,250 |
| 64+ | $31,000 | +$7,500 |
💰 Fee Impact Analysis
Understanding the true cost of investment fees
Fees deducted from your account over 35 years
What those fees would have grown to if invested
Of your potential retirement savings lost to fees
With vs Without Fees
You're losing $261,467 to fees. This includes $118,870 in direct fees plus $142,598 in lost growth (opportunity cost).
📈 How Salary Growth Affects Your 401k
Your Salary Projection
Your Contribution Growth
🔄 Roth vs Traditional 401k Comparison
Should you choose Roth or Traditional 401k? It depends on your tax situation.
Based on $75,000 salary
Based on $83,310/year withdrawal (Calculated: 22%)
Roth is better because you'll pay a higher tax rate in retirement (22%) than now (22%). Pay taxes now at the lower rate.
Frequently Asked Questions About 401k Plans
Frequently Asked Questions
How our 401k calculator works: 1) Enter contribution, employer match, age. 2) Uses 2026 limits and compound growth. 3) Shows retirement balance, tax savings, and 4% rule income.
Affiliates: Contextual offers only; no pop-ups. Disclosures apply where shown.
About 401k Calculator
How our 401k calculator works: 1) Enter contribution, employer match, age. 2) Uses 2026 limits and compound growth. 3) Shows retirement balance, tax savings, and 4% rule income. Perfect for retirement planning.
✅ Common Use Cases
- Calculate 401k growth projections with employer matching
- Understand how contribution rates affect retirement savings
- Maximize employer match benefits and contribution strategies
- Project retirement account values and income potential
- Compare different contribution scenarios and their outcomes
💡 Key Benefits
- Employer match calculations and optimization
- 401k growth projections with compound interest
- Tax savings calculations and analysis
- Contribution limit tracking (2025 limits)
- Retirement readiness analysis using 4% rule
- Free and instant calculations with no registration required
How to Use 401k Calculator
Choose your calculator
Navigate to the 401k Calculator page and familiarize yourself with the input fields.
Enter your values
Input your data into the calculator fields. All inputs are validated in real-time.
View instant results
The calculator instantly displays comprehensive results with detailed breakdowns.
🔬 How 401k Calculator Works
📐 Formula
401k Growth: Compound growth on contributions plus employer match. Uses 2026 contribution limits. Projects retirement balance and 4% rule income.
Variables:
- r: Annual return rate
- t: Years to retirement
📋 Step-by-Step Calculation Process
Enter contribution, employer match, age
Input your contribution %, employer match %, current age, and retirement age.
Uses 2026 limits and compound growth
Applies 2026 contribution limits, catch-up at 50+, and compound interest.
Shows retirement balance, tax savings, 4% rule income
See projected balance, tax savings, and sustainable withdrawal at 4%.
⌨️ Understanding Input Fields
Your annual contribution rate
Employer match % and cap
📊 Understanding Your Results
401k growth with employer match. Retirement readiness and 4% rule income projection.
Key Metrics Explained:
- Retirement Balance: Projected balance at retirement.
- 4% Rule Income: Sustainable annual withdrawal.
What to Do Next:
- Max employer match first
- Increase contribution annually
- Review fee impact
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