401(k) Calculator

Estimate 401(k) growth, employer match value, contribution limits, Traditional versus Roth outcomes, tax impact, and retirement income from your plan…

Retirement planning

401(k) Calculator

Project 401(k) growth, employer match value, contribution limits, and Traditional versus Roth outcomes using your own assumptions.

Growth plannerEstimate future 401(k) balance from your current balance, salary, contribution rate, employer match, return, and inflation assumptions.
401(k) savings assessmentYour modeled 401(k) balance is on a strong path based on these contribution and return assumptions.

Projected balance at retirement

$2.25MAfter 35 years of contributions and growth

Inflation-adjusted balance

$799,787In today's purchasing-power estimate
Years to retirement35
Annual employee contribution$6,800
Annual employer match$3,400
Total employee contributions$339,962
Total employer match$169,981
Investment growth$1.70M
Monthly income at withdrawal rate$7,502
Limit utilization29.6%

What-if scenarios

If you maxed employee contributions$4.48M
If you increase contribution by 2%+$295,008 at retirement
If you retire 3 years later$2.82M
If return rate is 1% lower-$454,637 vs current projection
Employer match value over projection$169,981

Year-by-year 401(k) growth

AgeSalaryYour contributionEmployer matchGrowthBalance
32$85,000$6,800$3,400$3,150$58,350
33$86,700$6,936$3,468$4,085$72,839
34$88,434$7,075$3,537$5,099$88,549
35$90,203$7,216$3,608$6,198$105,572
36$92,007$7,361$3,680$7,390$124,003
37$93,847$7,508$3,754$8,680$143,945
38$95,724$7,658$3,829$10,076$165,508
39$97,638$7,811$3,906$11,586$188,810
40$99,591$7,967$3,984$13,217$213,977
41$101,583$8,127$4,063$14,978$241,146
42$103,615$8,289$4,145$16,880$270,460
43$105,687$8,455$4,227$18,932$302,074
44$107,801$8,624$4,312$21,145$336,156
45$109,957$8,797$4,398$23,531$372,881
46$112,156$8,972$4,486$26,102$412,442
47$114,399$9,152$4,576$28,871$455,040
48$116,687$9,335$4,667$31,853$500,896
49$119,021$9,522$4,761$35,063$550,241
50$121,401$9,712$4,856$38,517$603,326
51$123,829$9,906$4,953$42,233$660,418
52$126,306$10,104$5,052$46,229$721,804
53$128,832$10,307$5,153$50,526$787,790
54$131,408$10,513$5,256$55,145$858,704
55$134,036$10,723$5,361$60,109$934,898
56$136,717$10,937$5,469$65,443$1.02M
57$139,452$11,156$5,578$71,172$1.10M
58$142,241$11,379$5,690$77,326$1.20M
59$145,085$11,607$5,803$83,933$1.30M
60$147,987$11,839$5,919$91,027$1.41M
61$150,947$12,076$6,038$98,642$1.53M

Formula

How 401(k) growth is estimated

The calculator grows your current balance and yearly contributions until retirement, while adding employer match and salary-growth assumptions.

Annual employee contribution = salary × contribution rate, capped by your editable limit
Future balance = current balance growth + employee contributions + employer match + investment growth

Planning

Why employer match and tax treatment matter

Capturing the employer match can add meaningful retirement value, while Traditional and Roth contributions can produce different after-tax outcomes depending on tax rates now and in retirement.

Employer match = salary × matched contribution percentage × match rate
Annual retirement income estimate = projected balance × withdrawal rate

Use cases

When to use this 401(k) Calculator

Use it to estimate future 401(k) savings, employer match capture, tax-treatment tradeoffs, and retirement income estimates before changing contribution elections.

Project your 401(k) balance by retirement age

Use the result as a planning estimate only, then confirm plan limits, match rules, taxes, and investment assumptions with qualified professionals or your plan administrator.

Estimate annual employee contributions and employer match

Use the result as a planning estimate only, then confirm plan limits, match rules, taxes, and investment assumptions with qualified professionals or your plan administrator.

Check whether you are capturing the full employer match

Use the result as a planning estimate only, then confirm plan limits, match rules, taxes, and investment assumptions with qualified professionals or your plan administrator.

Compare Traditional and Roth 401(k) tax assumptions

Use the result as a planning estimate only, then confirm plan limits, match rules, taxes, and investment assumptions with qualified professionals or your plan administrator.

Estimate retirement income from a 401(k) balance

Use the result as a planning estimate only, then confirm plan limits, match rules, taxes, and investment assumptions with qualified professionals or your plan administrator.

Model contribution changes, lower returns, and later retirement scenarios

Use the result as a planning estimate only, then confirm plan limits, match rules, taxes, and investment assumptions with qualified professionals or your plan administrator.

Calculator details

401(k) Calculator formula, assumptions, and examples

Last updated: July 2026

Formula used

Formula used

Future balance = current balance + employee contributions + employer match, compounded by assumed return.

Assumptions

Assumptions

  • Contribution rate, employer match, salary growth, and returns are estimates.
  • Plan limits, vesting, fees, taxes, and withdrawals can change results.
  • Market returns are not guaranteed.

Example calculation

Example calculation

A 5% employee contribution plus a 3% employer match on a $60,000 salary adds $4,800 per year before investment growth.

When to use this calculator

When to use this calculator

Use it to test contribution rates, employer match value, and long-term retirement balance scenarios.

Disclaimer

Disclaimer

This calculator is for estimation and educational use only. It does not replace professional financial, tax, legal, mortgage, investment, or accounting advice.

Questions

Frequently Asked Questions

What does this 401(k) calculator estimate?

It estimates projected 401(k) growth, employee contributions, employer match, investment growth, inflation-adjusted balance, retirement income, and simplified Traditional versus Roth scenarios based on the values you enter.

Does the calculator use exact plan rules?

No. Employer match formulas, vesting, contribution limits, fees, investment options, and tax rules can vary by plan and year. Treat the result as a planning estimate and verify details with your plan administrator.

How is employer match calculated?

The calculator estimates employer match by applying the selected match rate to the portion of salary you contribute up to the match cap you enter or select.

Can this replace financial or tax advice?

No. It is for educational planning only. 401(k) decisions can depend on plan rules, taxes, income, retirement timeline, investment risk, and personal circumstances. Review decisions with a qualified advisor or tax professional.

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