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Finance

401(k) Growth Calculator

See How Your Retirement Account Can Grow

This calculator shows the power of compound growth in your 401(k) over your working lifetime.

Estimate your future 401(k) balance at retirement.

Your Information

Enter your personal financial information

Your current age is used to determine the number of years until retirement.

years

The age at which you plan to retire. This determines the investment horizon.

years

The total amount currently saved in your 401(k) account(s).

$
$

Contribution Settings

Configure your 401(k) contribution details

%

e.g., 50% = 50¢ per $1 you contribute; 100% = dollar-for-dollar. Check your HR portal or offer letter.

%

The maximum percentage of your salary that your employer will match (e.g., up to 6% of your salary).

%

The expected annual percentage increase in your contributions, often tied to salary increases.

%

Number of years required to work at the company before employer contributions are fully yours.

years

Investment Settings

Set your investment return expectations and preferences

%

The anticipated average annual rate of inflation, used to calculate real returns.

%

Your general comfort level with investment risk. This can influence suggested asset allocations.

401(k) Tips

Click to show tips

Try an Example

Pick a scenario to see how the calculator works, then adjust the values

Young Professional

A 30-year-old starting to build their retirement savings with a solid employer match.

Key values: Age 30 to 65 · $75K salary · 10% contribution

Aggressive Saver

A high earner maximizing contributions to retire early with a large nest egg.

Key values: Age 35 to 60 · $150K salary · 20% contribution

Mid-Career Catch-Up

A 50-year-old leveraging catch-up contributions to boost retirement savings.

Key values: Age 50 to 67 · $100K salary · 15% contribution

Documentation

This calculator is also known as 401(k) Growth Calculator.

Read the complete guide

The Power of Compound Growth

Compound growth occurs when your investment returns generate their own returns over time.

Examples

Long-term Growth Example

Contributing $500 monthly over 30 years

Over time, the growth portion becomes the largest component of your 401(k) balance.

Key takeaway: The earlier you start, the more growth will contribute to your final balance.

Strategies to Maximize 401(k) Growth

These approaches can help boost your long-term results.

  • Maintain a well-diversified portfolio
  • Minimize investment fees
  • Stay invested through market volatility

Frequently Asked Questions about 401(k) Growth Calculator

What return rate should I expect for my 401(k)?

Historically, diversified portfolios have averaged 6-8% annual returns over long periods.

Specialized Calculators

Choose from 6 specialized versions of this calculator, each optimized for specific use cases and calculation methods.

Related Calculators

6 Calculators

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