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Retirement & 401(k) Calculator

Are you saving enough? Project your 401(k) and savings to retirement, see your funded percentage, and find out whether your money actually lasts.

You & Your Savings

Current age

Retire at

Current retirement savings

401(k), IRA, pension cash value, savings

Contributions

You contribute /mo

Annual salary

Employer match %

e.g. 50 Match up to % of pay

e.g. 6

Add age-50+ catch-up contribution (+$7,500/yr)

Retirement Goals

Monthly income needed

today's dollars Years in retirement

Expected return %

before inflation Inflation %

Include Social Security

Social Security /mo

today's dollars

Projected at retirement

Almost There

$1,448,652

You need about $1,454,480

99% funded

You're saving

11.0% of income

Below the 15% rule of thumb

In today's dollars

$657,356

what your balance buys at 2.5% inflation

The numbers

Monthly income from savings (4%)$4,829

Monthly income you need$4,848

Monthly gap-$19

Your savings last through age 92 (25-year plan).

Where the money comes from

Your contributions$192,000

Employer match$72,000

Investment growth$1,134,652

What would close the gap

Contribute $100 more / month109% funded ✓

Contribute $200 more / month119% funded ✓

Retire 2 years later110% funded ✓

Earn 1% higher return128% funded ✓

Estimate only. Uses the 4% withdrawal rule and steady annual returns; real results vary with markets and taxes. Not financial advice.

How the Retirement Math Works

Your future balance. The calculator compounds your current savings plus every monthly contribution — including your employer match and any catch-up — at your expected return until your retirement age. That's the pot you'll live off.

What you need. Using the 4% rule, you need about 25× your annual spending from savings. Your income goal is inflated to your retirement year, Social Security is subtracted, and the remainder sets your target nest egg. Your funded percentage is simply what you'll have divided by what you need.

Will it last? The 4% rule assumes a ~30-year horizon. This tool goes further and draws your money down year by year — with growth and inflation — to tell you the age your savings actually run out, so a plan that looks "funded" but dies early gets flagged.

Key Terms at a Glance

4% rule	Withdraw 4% of your nest egg in year one, then adjust for inflation — a common safe-withdrawal guideline.
Employer match	Free money your company adds to your 401(k), usually up to a percentage of pay.
Funded %	Your projected balance ÷ the balance you need. 100% = on track.
Real dollars	Your future balance expressed in today's purchasing power, after inflation.

Frequently Asked Questions

How much money do I need to retire?

A widely used shortcut is the 4% rule: you need roughly 25 times your expected annual spending from savings. If you plan to spend $60,000 a year and Social Security covers $24,000 of it, you'd need about 4% withdrawals of $36,000 — a nest egg near $900,000. This calculator does that math for you and inflates it to your retirement year.

How is my projected balance calculated?

It compounds your current savings plus your monthly contributions (and your employer match) at your expected annual return, month by month, until your retirement age. That future value is what you'll have to live on.

What does "funded percentage" mean?

It's your projected balance divided by the balance you need. 100% means you're on track to meet your income goal; 80% means you're close but should adjust something; below that, the "what would close the gap" panel shows the levers that get you there.

Is the 4% rule still safe?

It's a rule of thumb from historical stock-and-bond returns, meant to make money last about 30 years. Some planners now use 3.5% to be safer, others 4.5% in strong markets. The calculator also runs a year-by-year depletion check so you can see whether your specific plan actually lasts.

How much should I contribute to my 401(k)?

At minimum, contribute enough to capture your full employer match — that's free money and the calculator flags it if you're leaving any on the table. Beyond that, Fidelity's common benchmark is saving about 15% of your income (yours plus employer) each year.

What is a catch-up contribution?

Once you turn 50, the IRS lets you put extra money into a 401(k) and IRA above the normal limit — $7,500 more for 401(k)s in 2025, with a larger "super catch-up" for ages 60–63. Toggle it on to see how much the extra saving moves your finish line.

Available on Google Play

Save scenarios and see the growth chart

The Retirement & 401k Calculator app adds an interactive year-by-year growth chart, side-by-side scenario comparison, and PDF export — all on your device, no account needed.

Download on Google Play