How Much Should I Save for Retirement by Age

A common benchmark: by age 30, aim to have 1× your annual salary saved. By 40, 3×. By 50, 6×. By 65, 10×. These are Fidelity Investments' widely used retirement savings milestones, built on the assumption that you retire at 67 and need roughly 80% of your pre-retirement income each year.

The benchmarks matter because compound growth is ruthless about timing. Saving $500/month starting at 30 produces roughly twice the retirement balance of saving $500/month starting at 40 — same contributions, dramatically different outcome. According to the Federal Reserve's Survey of Consumer Finances, the median retirement savings for Americans aged 55–64 is approximately $185,000 — far short of what most will need. Knowing your target by age tells you how far ahead or behind you are right now.

Use the free Retirement Calculator at RoughTools to calculate your personal retirement target instantly — or follow the step-by-step method below.

The Retirement Savings Target Formula

The foundation of retirement math is the 4% rule — a guideline from researcher William Bengen, published in the Journal of Financial Planning in 1994. It states that a retiree can withdraw 4% of their portfolio in year one, adjust annually for inflation, and the money will last at least 30 years across most historical market conditions.

That means your target retirement nest egg equals 25 times your expected annual expenses in retirement:

Target nest egg = Annual retirement expenses × 25

To find how much you still need to save each year to reach that target:

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

Where:

FV — future value of your retirement portfolio (your target nest egg)
PV — present value (what you have saved today)
r — expected annual investment return (decimal form)
n — years until retirement
PMT — annual contribution needed (what you are solving for)

Worked example: 38-year-old with $87,400 saved

Profile: Age 38, salary $72,500, current savings $87,400, plans to retire at 65 (27 years away), expects to need 80% of current income = $58,000/year in retirement, assumes 7% average annual growth.

Step 1 — Calculate target nest egg using the 4% rule:

Target = $58,000 × 25 = $1,450,000

Step 2 — Calculate future value of current savings at 7% for 27 years:

$87,400 × (1.07)^27 = $87,400 × 6.214 = $543,103

Step 3 — Calculate remaining gap:

Gap = $1,450,000 - $543,103 = $906,897

Step 4 — Solve for required annual contribution (PMT):

$906,897 = PMT × [(1.07)^27 - 1] / 0.07
$906,897 = PMT × [6.214 - 1] / 0.07
$906,897 = PMT × 74.49
PMT = $906,897 ÷ 74.49 = $12,174/year = $1,015/month

The result: this person needs to contribute approximately $1,015/month from age 38 onward to retire comfortably at 65. If they are already contributing $1,200/month through their 401(k), they are ahead of schedule. If they are contributing $400/month, they have a meaningful gap to close — and still have time to close it.

How to Calculate Your Retirement Savings Goal Step by Step

Gather your four key numbers. You need: your current retirement savings balance across all accounts (401k, IRA, brokerage), your current annual income, your expected retirement age, and your expected annual expenses in retirement. Most planners use 70–80% of pre-retirement income as the expense estimate, though healthcare costs often push this higher in practice.
Set your retirement income target. Multiply your current income by 0.75–0.80 to estimate annual retirement expenses. On a $72,500 salary, 80% = $58,000/year. If you expect to have a paid-off home, lower healthcare costs, or significant Social Security income, adjust this number down. Social Security benefits average roughly $1,900/month ($22,800/year) for a typical worker — subtract your expected benefit to find how much your portfolio actually needs to cover.
Calculate your target nest egg. Multiply your annual retirement expenses by 25 (the inverse of the 4% withdrawal rate). This is the total portfolio you need on the day you retire. For $58,000/year: $58,000 × 25 = $1,450,000. If you expect $22,800/year from Social Security, your portfolio only needs to cover $35,200/year, dropping the target to $35,200 × 25 = $880,000.
Calculate what your current savings will grow to. Use FV = PV × (1 + r)^n. A common assumption is 7% average annual return for a diversified stock/bond portfolio — this is the historical average real return of the S&P 500 minus 1–2% for fees and a bond allocation. With $87,400 today growing at 7% for 27 years: $87,400 × 6.214 = $543,103.
Calculate the savings gap and required monthly contribution. Subtract the future value of current savings from your target nest egg. Divide the gap by the future value annuity factor [(1+r)^n - 1] / r to find the required annual contribution, then divide by 12 for monthly. Use the retirement calculator to run this calculation precisely — the exponent math is error-prone by hand.
Verify the result against the Fidelity salary benchmarks. As a sanity check, compare your current savings to the Fidelity age milestones (1× at 30, 3× at 40, 6× at 50). If your savings equal your salary at age 38 ($72,500 saved vs. $87,400 actual), you are modestly ahead. If the calculated monthly contribution seems impossibly high, the gap-closing timeline may need to extend — but running the numbers tells you exactly what trade-offs you face.

Pro tip: Run the calculation twice — once with 7% return (historical average) and once with 5% (conservative estimate). The difference in required monthly contributions between these two scenarios tells you how much investment return risk you are carrying in your retirement plan.

Retirement Savings Benchmarks by Age: 30, 40, and 50

The amount you should have saved for retirement depends on your age and income. Fidelity Investments publishes the most widely cited salary-multiple benchmarks:

| Age | Savings target | On $55,000 salary | On $85,000 salary | |---|---|---|---| | 30 | 1× salary | $55,000 | $85,000 | | 35 | 2× salary | $110,000 | $170,000 | | 40 | 3× salary | $165,000 | $255,000 | | 45 | 4× salary | $220,000 | $340,000 | | 50 | 6× salary | $330,000 | $510,000 | | 55 | 7× salary | $385,000 | $595,000 | | 60 | 8× salary | $440,000 | $680,000 | | 67 | 10× salary | $550,000 | $850,000 |

These benchmarks assume you save 15% of income annually from age 25, retire at 67, and draw Social Security. They are a starting point, not a precise prescription.

Two things the benchmarks do not account for: your actual spending rate and your Social Security benefit. A 50-year-old earning $85,000 but spending $45,000/year needs a much smaller nest egg than one spending $80,000/year. And a worker with 35 years of Social Security contributions may receive $2,500+/month — reducing the portfolio they need by $750,000 or more. Run your personalized numbers with the retirement savings calculator rather than relying solely on the salary multiple.

How Does the 4% Rule Work for Retirement Planning?

The 4% rule states that withdrawing 4% of your portfolio in year one of retirement, then adjusting that amount annually for inflation, gives your money a high probability of lasting 30 years. It was derived from William Bengen's analysis of every 30-year period in US market history from 1926–1992.

On a $1,000,000 portfolio, 4% = $40,000 in year one. If inflation is 3% that year, you withdraw $41,200 in year two. The portfolio continues growing on the remaining balance.

The rule is a guideline, not a guarantee. Some important nuances:

The original research used a 50/50 stock/bond portfolio. A more aggressive allocation historically supported higher withdrawal rates; a more conservative one supported lower rates.
30-year retirement assumes you retire at 65. Retiring at 55 means a 40-year retirement — some researchers suggest a 3.3–3.5% withdrawal rate for longer horizons.
The 4% rule does not adjust for large unexpected expenses like healthcare or long-term care, which average $172,000 per person over a lifetime according to Fidelity.

A practical alternative: use 3.5% as your withdrawal rate if you retire early or want extra safety margin. That pushes your target multiplier from 25× to 28.6× annual expenses — a more conservative but resilient target.

What If I Am Behind on Retirement Savings at 40 or 50?

Being behind on retirement savings at 40 or 50 is common and still recoverable — but it requires honest math and deliberate action, not vague reassurance.

At 40 with $55,000 saved against a $165,000 target (3× a $55,000 salary): you have a $110,000 gap with 25 years until age 65. At 7% growth, $55,000 grows to $298,000 by retirement. If your target nest egg is $1,100,000 ($44,000/year × 25), you need your contributions to generate the remaining $802,000. That requires approximately $1,020/month from age 40 — challenging but achievable, especially with an employer 401(k) match contributing part of that.

At 50 with $120,000 saved against a $330,000 target (6× a $55,000 salary): the math is tighter but the IRS helps. The catch-up contribution provision allows workers 50 and older to contribute an additional $7,500/year to a 401(k) on top of the standard $23,000 limit — a total of $30,500/year tax-deferred. Maxing out these contributions for 15 years with 7% growth produces approximately $764,000 from contributions alone. Add the growth on existing savings and retirement becomes realistic.

Use the compound interest calculator to model your specific gap — seeing the exact numbers removes the anxiety of vague "I'm behind" thinking and replaces it with a specific monthly contribution target.

Common Mistakes to Avoid When Calculating Retirement Savings

Using gross income instead of expenses as the retirement income base. You do not spend your gross income — you spend after taxes and savings. If you earn $80,000 gross but save $12,000 and pay $18,000 in taxes, your actual lifestyle costs $50,000/year. Your retirement target should replace that $50,000, not $80,000. This mistake inflates targets by 30–50%.
Ignoring Social Security in your calculation. Many people calculate a nest egg as if Social Security does not exist. The average Social Security benefit for retired workers was approximately $1,907/month ($22,884/year) in 2024 according to the Social Security Administration. Including this benefit can reduce your required nest egg by $500,000 or more, depending on your earnings history.
Assuming 10% annual returns. The S&P 500 has averaged roughly 10% nominal return historically — but after 2–3% inflation and 0.5–1% in fund fees, the real usable return is closer to 6–7%. Using 10% dramatically underestimates the savings required.
Not accounting for healthcare costs before Medicare. Retiring at 62 means 3 years without Medicare coverage. Individual health insurance for a 62-year-old averages $700–$1,200/month. This $25,000–$43,000 cost over 3 years does not appear in most retirement calculators and blindsides early retirees.
Treating the Fidelity benchmarks as a ceiling rather than a floor. The salary multiples assume average spending, average Social Security, and average investment returns. They are the minimum you should have, not the target. Workers with higher spending, no pension, or plans to retire early need significantly more. Use the benchmarks to spot a problem, then run personalized numbers to size it precisely.

Frequently Asked Questions

How much should I have saved for retirement by age 30? A standard benchmark is 1× your annual salary by age 30. On a $58,000 salary, that is $58,000 saved. Reaching this milestone typically requires starting contributions at 22–23 and saving 10–15% of income. If you are 30 with less than 1× saved, the gap is still small enough that consistent contributions from this point forward keep you on track — the power of compounding is still fully on your side.

What if I start saving for retirement late — at 45 or 50? Starting at 45 with nothing saved is harder than starting at 25, but a 20-year runway still supports meaningful wealth accumulation. At 7% growth, $1,500/month from age 45 to 65 produces approximately $819,000. Combined with Social Security averaging $22,000–$30,000/year for a career worker, a modest retirement is achievable. The IRS catch-up contribution limit for those 50+ ($30,500/year in a 401k for 2024) is specifically designed to help late starters.

What is the difference between a traditional 401(k) and a Roth IRA for retirement savings? Traditional 401(k) contributions are pre-tax — you save on taxes now but pay ordinary income tax on withdrawals in retirement. Roth IRA contributions are after-tax — no tax break now, but withdrawals in retirement are completely tax-free. If you expect to be in a higher tax bracket in retirement than you are today, Roth beats traditional. If you expect a lower bracket in retirement, traditional typically wins. Many planners recommend holding both to manage tax risk.

How much do I need to retire comfortably on $60,000 a year? Using the 4% rule, $60,000/year in retirement expenses requires a $1,500,000 portfolio. If Social Security covers $24,000/year of that, your portfolio only needs to fund $36,000/year — requiring $900,000. The actual number depends on your Social Security benefit, expected healthcare costs, whether your home is paid off, and how long you expect to live. Use the retirement planner with your specific Social Security estimate from ssa.gov for the most accurate target.

When should I start using a retirement calculator vs just following a benchmark? Use the salary multiple benchmarks (1×, 3×, 6× salary) as a quick diagnostic at any age. Switch to a full retirement calculator when: you are within 15 years of your target retirement date, your income or expenses differ significantly from average, you are self-employed without an employer match, or you want to model a specific retirement age other than 65–67. The benchmarks tell you if you have a problem; the calculator tells you exactly how big it is and what to do about it.

These projections are estimates for planning purposes. Actual retirement savings needs depend on investment returns, inflation, healthcare costs, Social Security benefits, and individual spending. Consult a licensed financial advisor for personalized retirement planning.

Use the Free Retirement Calculator

The Free Retirement Calculator at RoughTools models your complete retirement picture — current savings, annual contributions, expected return, Social Security income, and target retirement age — and tells you exactly whether you are on track and how much to save for retirement by age. It shows your projected nest egg, estimated monthly income in retirement, and the specific monthly contribution needed to close any gap. No account needed, no data stored, completely free.

Free Retirement Calculator →

You might also need:

Compound Interest Calculator — model how your current savings grow over time
Savings Calculator — calculate how regular contributions build your nest egg
Investment Calculator — project portfolio growth at different return rates
Inflation Calculator — see what today's $1,450,000 target will be worth in future dollars