401k Calculator — Retirement Savings Growth & Employer Match

Project your 401k balance at retirement — with employer match and investment growth

Your 401k Details

Current Age

Retirement Age

Current Annual Salary

Your Contribution Rate

2024 limit: $23,000/year (under 50) | $30,500 (50+)

Employer Match

e.g. "100% match" = employer doubles your contribution

Match Up To (% of salary)

e.g. "match up to 5% of salary"

Current 401k Balance

Expected Annual Return

Annual Salary Increase

Federal Tax Bracket (now)

Retirement Balance Breakdown

Your Total Contributions

Employer Match Total

Investment Growth

Total at Retirement

Annual Income (4% rule)

Annual Tax Deduction

Total "Free Money" (Match)

Year-by-Year Projection

Age	Annual Contrib (You)	Employer Match	Investment Growth	Balance

How to Maximize Your 401k

        Rule #1: Always get the full employer match. It's an instant 50-100% return on your contribution. If your employer matches 100% up to 5%, and you earn $75,000 — that's $3,750/year in free money. Never leave it on the table.
      

2024 Contribution Limits

Under age 50: $23,000/year
Age 50 and older: $30,500/year (catch-up contribution)
Total including employer match: $69,000/year

Traditional vs. Roth 401k

Traditional 401k: Contributions are pre-tax (reduces your taxable income now). You pay taxes when you withdraw in retirement.

Roth 401k: Contributions are after-tax (no immediate deduction). Withdrawals in retirement are completely tax-free — including all the growth.

Early withdrawal penalty: Withdrawing before age 59½ triggers a 10% penalty plus ordinary income tax. Leave the money alone until retirement.

The Rule of 72 — How Long to Double Your Money

Divide 72 by your expected return rate to find years to double. At 7% return: 72 ÷ 7 = ~10 years. A 30-year-old with $25,000 today could have $200,000 by retirement from that amount alone (25K doubles every 10 years: $50K → $100K → $200K).

Investment Allocation by Age

A common rule: subtract your age from 110 to get your stock allocation. At 30: 80% stocks, 20% bonds. At 60: 50/50. As you approach retirement, reduce risk by shifting to bonds and stable assets.