LogoPractical Web Tools

Free Forever

All our tools are completely free to use. No account required, No hidden fees and No subscriptions.

Fast & Secure

All processing happens in your browser. Your files never leave your device.

No File Size Limits

Convert files of any size. No restrictions on file sizes or number of conversions.

Batch Processing

Convert multiple files at once to save time and effort.

File Converters

  • PDF Tools
  • Image Converter
  • Video Converter
  • Audio Converter
  • Document Converter
  • eBook Converter
  • Archive Tools
  • File Tools

Calculators

  • Finance Calculators
  • Health Calculators
  • Math Calculators
  • Science Calculators
  • Other Tools

Popular Tools

  • PDF to Word
  • HEIC to JPG
  • Merge PDF
  • Fillable PDF Creator
  • Mortgage Calculator
  • BMI Calculator
  • AI Chat

Company

  • About Us
  • Blog
  • Contact
  • Request a Tool

Legal

  • Privacy Policy
  • Terms of Service
Email Support
Practical Web Tools Logo
Practical Web Tools

Free Tools — Your Files Never Leave Your Device

Practical Web Tools - Convert files & chat with AI — fully offline | Product Hunt

© 2026 Opal Emporium LLC. All rights reserved.

Privacy-first file conversion and AI chat. No accounts, no uploads, no tracking.

  1. Home
  2. Financial Tools
  3. 401(k) Calculator

401(k) Calculator

Calculate your 401(k) retirement savings with employer matching. See how your contributions, employer match, and compound growth build your retirement nest egg.

Formula:FV = PV(1+r)^n + PMT × [(1+r)^n - 1] / r

401(k) Projection

Balance at Retirement

$2,250,531

Monthly Retirement Income

$7,502

Based on 4% rule

Your Total Contributions$453,466
Total Employer Match$136,040
Total Interest Earned$1,636,026
Years to Retirement35 years

Personal Information

Enter your age and salary details

years
years
$

Your Contributions

Set your contribution rate and current balance

% of salary
030
Annual Contribution$7,500
Monthly Contribution$625

Employer Match

Configure employer matching details

% of your contribution
% of salary
Annual Employer Match+$2,250
Maximum Possible Match$2,250
Match Utilization100%

Growth Assumptions

Set expected returns and salary growth

%
%

Historical S&P 500 average: ~10% (7% inflation-adjusted)

Projected Growth

Visualize your 401(k) growth over time

Where Your Money Comes From

Breakdown of your retirement savings

$453,466

Your Contributions

20.1% of total

$136,040

Employer Match

Free money!

$1,636,026

Investment Growth

72.7% of total

Year-by-Year Projection

Detailed annual breakdown

AgeYour Contrib.Employer MatchGrowthBalance
35$8,441+$2,532+$5,950$96,438
40$9,786+$2,936+$13,087$206,409
45$11,344+$3,403+$23,853$371,982
50$13,151+$3,945+$39,828$617,343
55$15,246+$4,574+$63,248$976,704
60$17,674+$5,302+$97,273$1,498,383
65$20,489+$6,147+$146,360$2,250,531

Impact of Contribution Rate

Compare different contribution scenarios

5% contribution

$1,411,309

+$113,366 match

10% contribution

$2,250,531

+$136,040 match

15% contribution

$2,962,508

+$136,040 match

20% contribution

$3,504,474

+$136,040 match

What If I Changed My Contribution?

See how adjusting your contribution rate affects your retirement

0.00%10.00%30.00%

Balance at Retirement

$2,250,531

Retirement Savings Milestones

100.0% complete

$2,250,531

of $1,875,000

$100K

$100,000

First major milestone!

$250K

$250,000

Quarter millionaire!

$500K

$500,000

Halfway to a million!

$1 Million

$1,000,000

Millionaire status!

25x Salary

$1,875,000

Full retirement goal (4% rule)

Goal Achieved!

Congratulations on reaching your target!

$100K

$100,000

$250K

$250,000

$500K

$500,000

$1 Million

$1,000,000

25x Salary

$1,875,000

Your 401(k) Insights

3 insights based on your inputs

Your Early Start Advantage

Starting now instead of 5 years later could mean $752,148 more at retirement thanks to compound growth!

Extra savings:$752,148

Consider Increasing Contributions

Financial experts recommend saving 15% of income for retirement. Small increases now can make a big difference later.

Maximizing Employer Match!

You're getting the full employer match of $2,250 per year. That's free money!

401(k) Health Score

Based on your financial inputs

92out of 100Excellent

Score Breakdown

Contribution Rate
10% / 15%67
Employer Match Capture
100% / 100%100
Years of Growth
35 years / 30 years100
Progress to Goal
120.028% / 100%100

Improvement Areas

Contribution Rate

Try to increase from 10 to 15

Strong: Progress to Goal

You're doing great with 120.028%!

Explore Related Tools

Continue your retirement planning

Roth IRA Calculator

Calculate tax-free retirement growth

Complement your 401(k)

Retirement Calculator

Full retirement income planning

Complete retirement picture

Compound Interest

See the power of compound growth

Understand growth mechanics

Social Security

Estimate your benefits

Additional retirement income

Pension Calculator

Calculate pension benefits

RMD Calculator

Required minimum distributions

View all finance calculators

Quick Answer

A 401k calculator projects how your retirement account will grow based on contributions, employer match, and investment returns. At practicalwebtools.com, enter your salary, contribution rate, employer match, and expected return to see your 401k at retirement. The 2025 contribution limit is 23,500 (31,000 if 50+).

Key Facts

  • 2025 401k contribution limit: 23,500 (31,000 if 50+)
  • Average employer match: 4.7% of salary
  • Not taking full employer match = leaving free money on the table
  • Traditional 401k: Pre-tax contributions, taxed at withdrawal
  • Roth 401k: After-tax contributions, tax-free withdrawals
  • Early withdrawal penalty: 10% plus income tax (before 59.5)
  • Required Minimum Distributions start at age 73

Frequently Asked Questions

A 401(k) is an employer-sponsored retirement savings plan that allows employees to contribute pre-tax or Roth (after-tax) dollars from their paycheck. Many employers offer matching contributions up to a certain percentage, essentially providing free money toward your retirement.

An employer-sponsored retirement plan with tax advantages and potential employer matching contributions.

For 2024, the employee contribution limit is $23,000. If you're 50 or older, you can make an additional catch-up contribution of $7,500, bringing your total to $30,500. The combined limit for employee and employer contributions is $69,000 (or $76,500 with catch-up).

$23,000 for 2024, plus $7,500 catch-up if 50+. Combined employer/employee limit is $69,000.

Employer matching is when your employer contributes money to your 401(k) based on your contributions. A common match is 50% of your contribution up to 6% of salary. So if you earn $100,000 and contribute 6% ($6,000), your employer adds $3,000. This is essentially free money.

Free employer contributions based on your contributions. Common: 50% match up to 6% of salary.

Traditional 401(k) contributions are pre-tax, reducing your current taxable income but taxed on withdrawal. Roth 401(k) contributions are after-tax, providing tax-free withdrawals in retirement. Choose Roth if you expect higher taxes in retirement, Traditional if you expect lower taxes.

Traditional: pre-tax now, taxed later. Roth: after-tax now, tax-free later. Depends on future tax rate.

You can start penalty-free withdrawals at age 59½. Early withdrawals typically incur a 10% penalty plus income taxes, though exceptions exist for hardship, disability, or substantially equal periodic payments (Rule 72t). Required minimum distributions (RMDs) begin at age 73.

Penalty-free at 59½. Early withdrawals face 10% penalty + taxes. RMDs start at 73.

Financial experts recommend contributing at least enough to get your full employer match (otherwise you're leaving free money). Beyond that, aim for 10-15% of income. The ideal amount depends on your age, retirement goals, and other savings.

At minimum, enough to get full employer match. Ideally 10-15% of income.

401(k) Projection

Balance at Retirement

$2,250,531

Monthly Retirement Income

$7,502

Based on 4% rule

Your Total Contributions$453,466
Total Employer Match$136,040
Total Interest Earned$1,636,026
Years to Retirement35 years