Free browser-based estimate

401(k) Calculator

Project a US 401(k) balance using contributions, employer match, salary growth, and an assumed return. Review the assumptions and verify important figures with current official sources.

Your assumptions

Inputs stay local

Projected 401(k) balance

$1,814,117

Average monthly contribution

$47,110

Years invested

35 years

How to read this estimate

This projection assumes regular contributions, the salary-growth assumption shown, and a constant annual return. It does not account for plan fees, taxes, contribution limits, vesting, or market volatility.

Independent planning tool. Results are estimates based on the values and assumptions shown. This is not financial, tax, legal, mortgage, or pension advice.
Check the official guidance: IRS retirement-plan guidance
Author:Bharat Kumar(Founder & Lead Developer)
Privacy note:Calculations run locally in your browser. Your entered financial figures are not sent to our calculator server.

What is a 401(k) Calculator?

This tool projects the future value of your workplace retirement plan based on your salary, contribution rate, and investment returns. It factors in your employer match to show the true trajectory of your nest egg.

Who Should Use This Tool?

Any employee with access to a workplace retirement plan should use this calculator to optimize their savings. It is particularly useful for those planning their escape from the rat race using our FIRE guide.

Examples

Maximizing the Employer Match

Example Input

Salary: $80,000, Contribution: 6%, Employer Match: 100% up to 6%, Annual Return: 7%, Years: 30.

Sample Output

Final Balance: $960,500. The employer match contributed $480,250 of the total growth.

Maxing Out Contributions

Example Input

Salary: $120,000, Contribution: $23,500/year, Current Balance: $50,000, Annual Return: 8%, Years: 25.

Sample Output

Final Balance: $2,150,000. Total personal contributions were $587,500.

Actionable Use Cases

Use this calculator to determine if you are on track to meet your retirement goals when combined with a retirement calculator. It helps you decide whether to increase your contribution percentage when you get a raise or bonus.

Optimizing Your Strategy

Always contribute at least enough to capture your full employer match—it maximizes your total compensation package. For a complete picture of your wealth building, run your numbers here and then separately in a Roth IRA calculator to diversify your tax advantages.

Common Pitfalls

A massive mistake is ignoring the IRS contribution limits or misunderstanding your company's vesting schedules, which dictate when the matched funds actually belong to you. Also, failing to account for inflation in a compound interest calculator can lead to a false sense of security.

FAQ

What is an employer match?

An employer match is money your company contributes to your 401(k) based on how much you contribute. For example, they might match 100% of your contributions up to 5% of your salary.

Should I choose a Traditional or Roth 401(k)?

A Traditional 401(k) provides a tax break now, while a Roth 401(k) provides tax-free withdrawals in retirement. The choice depends on whether you think your tax rate is higher now or will be higher in retirement.

What is a vesting schedule?

A vesting schedule determines when you fully own your employer's matched contributions. If you leave the company before you are fully vested, you may forfeit some or all of the matched money.

Why Use Our Calculator?

Our 401(k) projector provides instant, private, and customizable results right in your browser. You can tweak your expected annual return and salary growth rate to run highly realistic scenarios for your future.

Workflow Sequence

Recommended Next Step Workflow

Follow this 3-step planning sequence to compare the current calculator with the next useful financial or career check.

Related Calculators

People Also Calculate

Pair this calculator with related tools to compare salary, tax, savings, and career outcomes.

All Tools →
Financial Planning Guide
Pillar Documentation10 min read • 1,796 words

How Much Interest Can I Save by Paying Extra on My Mortgage? The Compounding Math Explained

Discover exactly how much lifetime interest you eliminate by making extra mortgage payments. We break down the amortization front-loading curve, monthly vs lump-sum strategies, and the savings multiplier with real numbers.

Read Pillar Guide →
Complete Toolkit Collections

Upgrade Your Financial & Career Planning Workflow

Explore our dedicated calculators to systematically plan your career, estimate taxes, and manage your financial growth.