Calculate your 401K retirement savings
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Enter your annual salary
Input your gross annual income before taxes. This determines your contribution limits and forms the basis for calculating how much you can save toward retirement each year.
Set your contribution percentage
Specify what percentage of your salary to contribute. For 2024, the maximum is $23,000 (under 50) or $30,500 (50+). At minimum, contribute enough to get your full employer match - it is free money.
Input employer match details
Enter your employer matching formula, such as 50% of contributions up to 6% of salary. This match is an immediate 50-100% return on your contribution and should be maximized before considering other investments.
Enter expected annual return
Estimate your expected annual rate of return. A diversified portfolio typically earns 6-8% annually over the long term. More aggressive allocations may target 8-10% while conservative ones aim for 4-5%.
Set years until retirement
Enter the number of years until you plan to retire. The longer your investment horizon, the more compound growth works in your favor. Starting early is one of the most powerful wealth-building strategies available.
Review your projected retirement savings
The calculator shows your total projected balance including contributions, employer matches, and compound growth. Use these results to adjust your contribution rate and see how small increases today create significantly more at retirement.
Total Balance
This represents the projected total value of your 401(k) at retirement, combining your contributions, employer match, and investment earnings. This is the number you will use to plan your retirement income stream.
Your Contributions
The total amount you will have contributed from your paycheck over the specified period. Remember that traditional 401(k) contributions are made pre-tax, reducing your current taxable income while building retirement savings.
Employer Match
The total free money your employer contributes based on their matching formula. If your employer matches 50% up to 6% and you contribute 6%, that is an immediate 3% return on your salary every year.
Investment Growth
The compound growth component typically represents the largest portion of long-term 401(k) balances. Over 30+ years, investment earnings can exceed total contributions by a significant margin, demonstrating the power of compound returns.
New Employee Enrollment
Starting a new job with 401(k) benefits? Use this calculator to determine the optimal contribution percentage to maximize your employer match while maintaining your current budget. Even contributing 1-2% more can significantly impact your retirement balance over decades.
Catch-Up Planning
Are you over 50 and behind on retirement savings? Use the calculator with catch-up contribution limits ($7,500 additional in 2024) to see how aggressive contributions in your remaining working years can still build meaningful savings.
Contribution Increase Evaluation
Considering increasing your contribution rate? Compare scenarios at 6%, 10%, and 15% contribution levels to see the long-term impact. A 5% increase over 20 years at 7% return can add over $100,000 to your retirement balance.
Retirement Readiness Assessment
Use your current balance and settings to project whether you are on track for your retirement goals. If the projected balance falls short, adjust your contribution rate, expected return assumptions, or planned retirement age to find a realistic path forward.
Future Value with Regular Contributions
FV = P(1+r)^n + C[((1+r)^n - 1) / r], where P = current balance, r = annual return rate, n = number of years, C = annual contribution. This compound interest formula with regular additions is the foundation of 401(k) growth projections.
Employer Match Calculation
Match = min(Your Contribution, Salary x Match Cap) x Match Rate. For example, with a $60,000 salary, 50% match up to 6%, and contributing 6%: Match = min($3,600, $3,600) x 0.50 = $1,800 per year.
Contribution Limit Check
Annual Contribution = min(Salary x Contribution%, IRS Limit). For 2024, the IRS limit is $23,000 for those under 50 and $30,500 for those 50 and older. Your contribution cannot exceed the lesser of your percentage or the IRS cap.
Real Value After Inflation
Real Value = Nominal Value / (1 + inflation_rate)^years. This helps you understand what your projected balance will actually buy in today's dollars, accounting for purchasing power erosion over time.