A retirement savings calculator answers the question that actually keeps people up at night: am I saving enough? It takes what you have today and what you add each month, grows it to your retirement age, then checks whether the result can fund the lifestyle you want once Social Security is counted.
The verdict above is deliberately calm — On track, Almost there, or a gap to close — and whenever there’s a shortfall, you get the precise extra monthly saving (or the year or two of working longer) that fixes it. Everything is shown in today’s money so the numbers feel real.
How much should you be saving?
There’s no single number, because it depends on when you want to stop, how much you’ll spend, and how much Social Security or a pension covers. A common starting point is to aim for a nest egg around 25× the annual spending your own savings need to cover — but the calculator works it out from your actual inputs rather than a rule of thumb.
The most powerful lever early on is time. A dollar saved in your thirties has decades to compound; the same dollar saved in your fifties barely gets going. That’s why starting — even small — beats waiting for the “right” amount.
Reading your on-track verdict
The funded-ratio arc shows how close your projected savings come to the income you’re targeting. Above 100% and you’ve got margin; in the 85–99% band you’re almost there; below that, there’s a gap — but it’s framed as a solvable plan, never a pass/fail.
Two fixes always appear with any gap: the extra you’d save each month to reach on-track, and the alternative of retiring a little later, which both grows the balance and shortens the years it has to last. Pick whichever fits your life.
What to do if you’re behind
Falling short at first is normal, especially mid-career. The highest-impact moves are usually raising your contribution (even a small, automatic annual increase compounds), capturing every dollar of employer match, and keeping fees low so more of the growth is yours.
If saving more isn’t possible right now, working a couple of extra years is surprisingly powerful — it’s the rare lever that helps from both ends at once. Use the what-if chips above to see each option’s effect on your own numbers.
Frequently asked questions
How much do I need to save for retirement?
Enough that your savings, plus Social Security or a pension, can cover your annual spending sustainably — often a nest egg around 25× the portion your own savings must fund. The calculator works out your specific number from your spending, age, and expected returns.
Am I on track for retirement?
Enter your age, current savings, monthly contribution, and target spending above. You’ll get a clear verdict — on track, almost there, or a gap to close — plus the exact extra saving or later retirement age that would put you on track.
How much should I have saved by my age?
A common guideline is roughly 1× your salary saved by 30, 3× by 40, 6× by 50, and 8–10× by 67 — but these are rough benchmarks. Your real target depends on your spending and other income, which this calculator accounts for.
Does this include Social Security?
Yes. Social Security (or a pension) directly offsets what your savings have to cover, which dramatically lowers the nest egg you need. Enter your estimated monthly benefit in “other monthly income” — the U.S. average is around $1,900.
Worked examples
Each scenario below is computed by the same retirement engine that powers the interactive calculator above — no hand-typed numbers.
On-track saver in their 30s
$50,000 saved at 35, adding $700/month, targeting $60,000/year in retirement at 65 with $1,900/month Social Security.
Projected nest egg
$1,259,805
Required (today's $)
$745,463
Funded ratio
70%
Monthly income
$3,630/mo
With 30 years of compounding, $700/month becomes a significant retirement nest egg — the funded ratio reveals exactly how close this scenario is to target.
Catch-up saver at 50
$120,000 saved at 50, contributing $1,500/month, planning to retire at 67 with $70,000/year desired spending.
Projected nest egg
$978,278
Required (today's $)
$818,219
Funded ratio
72%
Monthly income
$4,173/mo
Catch-up contributions (IRS allows an extra $7,500/year after 50 in a 401k) can meaningfully shift the funded ratio when you start late.
More retirement questions
How do I know if I'm saving enough for retirement?
The funded ratio above is the clearest signal — a ratio at or above 1.0 means your current trajectory gets you there. Below 1.0, the gap shows you exactly how much extra monthly saving (or how many extra working years) closes it. A common shorthand is saving 15% of gross income including employer match, but the actual right number depends entirely on when you want to retire and what you want to spend.
Should I prioritize paying off debt or saving for retirement?
Always capture the full employer 401k match first — it's an immediate guaranteed return. After that, if your debt carries interest above 6–7%, paying it down provides a guaranteed return that is hard to beat in the market. Below that threshold, most planners recommend a split: continue contributing to retirement while aggressively paying debt.
What this calculator does — and does not — compute
Retirement projections involve inputs that come from government agencies, employers, and tax rules this tool cannot access. Here is exactly what you are providing versus what this calculator handles on its own.
- 1.Social Security is not calculated here. You enter your own monthly estimate in the “Other monthly income” field. This tool does not access your earnings record or apply Social Security benefit formulas. To get your actual personalized estimate, create a free account at ssa.gov/myaccount.
- 2.Required Minimum Distributions (RMDs) are not modeled. The drawdown projection shows balance depletion under your stated withdrawal rate, but it does not enforce IRS RMD schedules (which begin at age 73 for most accounts) or calculate RMD amounts from IRS life-expectancy tables. If RMDs apply to you, actual withdrawals may differ from the projection shown.
- 3.Pension income is an input you provide, not a computed output. If you have a defined-benefit pension, enter your expected monthly payment in “Other monthly income.” This tool does not compute pension formulas (FERS, CalPERS, military, state, or private plan formulas) and does not connect to any employer or government pension system.
- 4.Withdrawal tax treatment is simplified and illustrative. The projection shows gross withdrawals from your portfolio. It does not calculate federal or state income taxes on traditional 401k or IRA distributions, does not model Roth tax treatment, and does not account for RMD-driven bracket changes. Actual after-tax income will differ. For tax planning specific to your situation, consult a qualified tax professional.
- 5.Any depletion result is a projection, not a guarantee. “How long your money lasts” and similar outputs are calculated under your stated return rate, inflation rate, and spending assumptions. Actual outcomes depend on market performance, sequence of returns, unexpected expenses, and life events that cannot be modeled in advance. A projection is a planning tool, not a promise.
This calculator is for educational and planning purposes only. It does not constitute financial, tax, or investment advice.