See how big your 401(k) could grow. This free 401k calculator projects your balance at retirement including your employer match, and shows how much comes from contributions versus growth.
Your 401(k)
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Projected 401(k) at retirement
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Enter your details to project your balance
Your contributions
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Employer match
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Investment growth
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Years
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Estimate only, in nominal dollars. Employer match is treated as dollar-for-dollar up to the percent you contribute.
Use this free 401(k) calculator to project your retirement account balance, including your employer match. Enter your age, salary, contribution rate and expected return to see how much your 401(k) could grow.
What this 401(k) calculator shows you
A 401(k) calculator projects your workplace retirement balance at retirement. Enter your salary, the percentage you contribute, your employer match and an expected return, and it shows your projected balance, your total contributions, the employer match and investment growth.
The employer match is the key feature — it’s effectively free money, and this calculator shows how much it adds over a career.
How the employer match works
A common match is “100% up to 6%” — your employer adds a dollar for every dollar you contribute, up to 6% of your salary. To get the full match, you generally need to contribute at least up to the match limit. This calculator treats the match as dollar-for-dollar up to the percent you contribute, so not contributing enough leaves money on the table.
How to use the 401(k) calculator
Enter your current and retirement age. The gap is your time to grow.
Add your current balance and salary. Your starting point and income.
Set your contribution and employer match percentages. As a percent of salary.
Enter an expected annual return. Often modelled at 6–7%.
Read your projection. Your balance and its breakdown update instantly.
401(k) example
At age 30 retiring at 65, with a $20,000 balance, a $60,000 salary, contributing 6% with a 3% match at 7% return:
Detail
Amount
Your contributions
$126,000
Employer match
$63,000
Investment growth
$831,598
Projected balance
$1,040,598
The employer match alone adds about $63,000 in contributions — and far more once it compounds.
Tips to maximize your 401(k)
Always contribute enough to get the full match. It’s an instant return on your money.
Increase your rate with each raise so saving grows painlessly.
Mind the annual contribution limit set by the IRS each year.
Start early. Decades of compounding do most of the heavy lifting.
401(k) terms glossary
Term
What it means
401(k)
An employer-sponsored, tax-advantaged retirement account.
Employer match
Money your employer adds based on your contributions.
Vesting
How long you must stay to fully own the employer match.
Contribution limit
The IRS cap on how much you can contribute each year.
Compound growth
Returns earning returns over time.
401(k) Calculator FAQ
How is a 401(k) balance projected?
Your current balance and your monthly contributions (yours plus your employer match) are compounded at your expected return until retirement. The calculator adds it all up to project your balance and shows how much comes from growth.
How does an employer match work?
An employer match means your company adds money based on what you contribute — for example, "100% up to 6%" matches each dollar up to 6% of your salary. You usually must contribute at least up to the match limit to get the full amount.
How much should I contribute to my 401(k)?
At minimum, contribute enough to capture the full employer match — it's free money. Many advisors suggest aiming for 10–15% of your salary including the match, increasing over time.
What is 401(k) vesting?
Vesting is how long you must stay with an employer to fully own the matched contributions. Your own contributions are always 100% yours; the match may vest gradually over several years.
Does this account for contribution limits?
No. The IRS sets an annual 401(k) contribution limit that changes each year. This calculator projects based on your inputs, so keep your contributions within the current limit.
Is the 401(k) calculator free to use?
Yes, this 401(k) calculator is completely free, needs no sign-up, and gives instant results directly in your browser.