Retirement Calculator: How Much Do You Need to Retire?
Quick Answer
- *Most planners use the 4% rule: save 25x your annual expenses. Spending $60,000/year means you need roughly $1.5 million.
- *Fidelity's 2025 benchmarks: 1x salary by 30, 3x by 40, 6x by 50, 8x by 60, 10x by 67.
- *Social Security reduces how much you need to self-fund — the average benefit in 2025 was $1,976/month (SSA).
- *Retiring early requires a larger nest egg — a 40-year horizon typically calls for a 3–3.5% withdrawal rate instead of 4%.
How Much Do You Need to Retire?
The most common answer in financial planning: 25 times your annual expenses. That number comes directly from the 4% rule, which we'll break down below. It is a starting point, not a guarantee — but it gives you a concrete target to work toward.
If you and your partner spend $80,000 per year and expect to receive $30,000 combined from Social Security, your self-funded gap is $50,000. At 25x that gap, you need $1.25 million in personal savings.
The exact number depends on five variables: when you retire, how long you live, what you spend, your investment returns, and inflation. Change any one of them and your target shifts significantly.
The 4% Rule Explained
In 1994, financial planner William Bengen published research analyzing historical market data going back to 1926. His finding: a retiree who withdrew 4% of their portfolio in year one, then adjusted that amount for inflation each year, had a very high probability of not running out of money over a 30-year retirement — even through the worst historical market periods.
The rule assumes a balanced portfolio of roughly 50–60% stocks and 40–50% bonds. It also assumes the retiree does not panic-sell during downturns.
Flipping the math gives you your retirement number: divide your annual spending by 0.04 (or multiply by 25).
| Annual Spending in Retirement | Required Nest Egg (4% Rule) |
|---|---|
| $30,000 | $750,000 |
| $50,000 | $1,250,000 |
| $70,000 | $1,750,000 |
| $100,000 | $2,500,000 |
| $150,000 | $3,750,000 |
Important caveat: Bengen's research assumed a 30-year retirement. If you retire at 55 and live to 95, you need a 40-year horizon, which pushes the safe withdrawal rate closer to 3–3.5%. A Vanguard 2024 study found that for 40-year retirements, a 3.3% withdrawal rate had a 90% success rate across 10,000 simulations.
Retirement Savings Benchmarks by Age (Fidelity 2025)
Fidelity Investments publishes widely-cited retirement savings benchmarks based on your annual salary. These assume you retire at 67 and maintain roughly your pre-retirement lifestyle.
| Age | Savings Target (Multiple of Salary) | Example: $75,000 Salary |
|---|---|---|
| 30 | 1x salary | $75,000 |
| 35 | 2x salary | $150,000 |
| 40 | 3x salary | $225,000 |
| 45 | 4x salary | $300,000 |
| 50 | 6x salary | $450,000 |
| 55 | 7x salary | $525,000 |
| 60 | 8x salary | $600,000 |
| 67 | 10x salary | $750,000 |
These benchmarks are guidelines, not gospel. They assume you save 15% of your income annually (including any employer match), invest primarily in diversified stock funds, and draw Social Security at full retirement age. If you started late or have a pension, your target shifts accordingly.
Top 5 Factors That Determine How Much You Need to Retire
1. Retirement Age
Retiring at 55 vs. 67 is not just 12 more years of savings — it is also 12 fewer years of Social Security contributions, 12 more years of portfolio withdrawals, and no Medicare until 65. The Trinity Study found that retiring at 55 with a 40-year horizon requires roughly 30% more savings than retiring at 65 with a 30-year horizon, assuming the same lifestyle.
2. Annual Spending
This is the biggest lever. Cutting annual spending from $80,000 to $60,000 reduces your required nest egg by $500,000 under the 4% rule. Many retirees find their spending drops naturally in their 70s and 80s (travel and entertainment slow down), but healthcare costs rise. The Fidelity Retiree Health Care Cost Estimate 2025 projects that a 65-year-old couple will spend an average of $315,000 on healthcare throughout retirement.
3. Social Security Income
The Social Security Administration reported the average monthly benefit in 2025 was $1,976 for retired workers. At the maximum benefit for someone retiring at 70 in 2025: $4,873/month. Every dollar of Social Security income reduces your required self-funded savings by $25 (under the 4% rule math). Delaying Social Security from 62 to 70 increases your monthly benefit by roughly 77%.
4. Investment Returns and Asset Allocation
A portfolio earning 7% annually (historical real return of a balanced portfolio) behaves very differently than one earning 4%. According to J.P. Morgan Asset Management's 2025 Guide to Retirement, the long-run real return assumption for a 60/40 portfolio is approximately 5.4% annually. Sequence-of-returns risk — the order in which returns occur — matters most in the first 5–10 years of retirement.
5. Inflation
At 3% average inflation, your $60,000 annual budget in 2026 costs $80,700 in 2036. The 4% rule accounts for this by increasing withdrawals annually. But high-inflation environments (like 2022) stress portfolios more than the historical average suggests. Most retirement plans use a 2.5–3% inflation assumption. Our inflation calculatorcan show you exactly how much your future spending will cost in today's dollars.
Retirement Age Comparison: How Much Do You Need?
Retiring earlier requires more savings for three reasons: longer retirement horizon, more years without Social Security, and more years of portfolio withdrawals before Medicare eligibility.
| Retirement Age | Estimated Retirement Length | Safe Withdrawal Rate | Nest Egg Needed ($60K/yr spending) |
|---|---|---|---|
| 55 | 35–40 years | 3.0–3.3% | $1.8M–$2.0M |
| 60 | 30–35 years | 3.3–3.7% | $1.6M–$1.8M |
| 65 | 25–30 years | 3.7–4.0% | $1.5M–$1.6M |
| 67 | 20–25 years | 4.0–4.5% | $1.3M–$1.5M |
| 70 | 15–20 years | 4.5–5.0% | $1.2M–$1.3M |
These figures assume $60,000 per year in spending and no Social Security offset. Add your expected Social Security benefit, subtract it from $60,000, then apply the multiplier.
How to Calculate Your Retirement Number
Here is a straightforward three-step process:
Step 1: Estimate annual retirement spending.Take your current annual expenses and adjust. Most people spend 70–80% of their pre-retirement income in retirement (no commuting costs, no saving for retirement itself, potentially no mortgage). Be honest about healthcare.
Step 2: Subtract guaranteed income.Add up Social Security (use the SSA's my Social Security estimator), any pension income, and rental income. Subtract this from your annual spending estimate. The remainder is what your portfolio must fund.
Step 3: Apply the multiplier.Multiply your annual spending gap by 25 for a 30-year retirement (4% rule), or by 30–33 for a 35–40-year early retirement.
Skip the math and plug your numbers directly into our Retirement Calculator for an instant estimate.
Maximizing Your Retirement Savings: Key Accounts
Tax-advantaged accounts are the engine of retirement savings. Here's where to prioritize, roughly in order:
- 401(k) up to employer match: Free money. Always capture the full match first. See our 401(k) contribution limits guide for 2026 limits and catch-up rules.
- HSA (if eligible): Triple tax advantage — deductible contributions, tax-free growth, tax-free withdrawals for medical expenses. After 65, withdrawals for any purpose are taxed like a Traditional IRA.
- Roth IRA or Traditional IRA: Depending on your income and tax bracket, one may be better than the other. Our Roth conversion guide explains the tradeoffs.
- Remaining 401(k) capacity: Max out after the above. The 2026 contribution limit is $23,500 ($31,000 if you're 50+).
- Taxable brokerage: No contribution limits, no restrictions, fully flexible. Good for assets you may need before 59½.
The power of these accounts comes from compound growth. See our compound interest guidefor a detailed breakdown of how long-term compounding works — and why starting at 25 vs. 35 can mean $300,000+ in additional wealth at retirement.
Common Retirement Planning Mistakes
Underestimating Healthcare Costs
Healthcare is typically one of the biggest expenses in retirement. The Fidelity 2025 estimate of $315,000 for a couple is for out-of-pocket costs after Medicare — not total premiums. Long-term care (nursing homes, assisted living) can add another $100,000–$300,000 over a lifetime.
Claiming Social Security Too Early
Claiming at 62 locks in a permanent reduction of up to 30% versus your full retirement age benefit. Delaying to 70 increases your benefit by 8% per year past full retirement age. For most people who are healthy and have other income sources, waiting pays off.
Ignoring Inflation in Projections
Using nominal returns (before inflation) makes your future balance look better than it is. Always think in real (inflation-adjusted) terms when projecting retirement income and expenses.
Withdrawing From Retirement Accounts Early
A 10% early withdrawal penalty plus ordinary income taxes on a $50,000 withdrawal can cost $17,000–$25,000 in taxes depending on your bracket. More importantly, that $50,000 left in the account at age 35 could be worth $190,000–$270,000 by age 65 at 5–7% growth.
Find your retirement number
Try our free Retirement Calculator →Also useful: Compound Interest Calculator • 401(k) Calculator
Frequently Asked Questions
How much do I need to retire?
Most financial planners recommend saving 25 times your annual expenses — the basis of the 4% rule. If you spend $60,000 per year in retirement, you need roughly $1.5 million. Social Security income reduces the amount you need to self-fund, potentially by $200,000–$400,000 or more.
What is the 4% rule for retirement?
The 4% rule, based on William Bengen's 1994 research, states that retirees can withdraw 4% of their portfolio in year one, then adjust for inflation each year, with a high probability the portfolio lasts 30 years. A $1 million portfolio supports $40,000 per year. It assumes a balanced stock and bond allocation.
How much should I have saved for retirement by age 40?
Fidelity's 2025 guidelines recommend having 3 times your annual salary saved by age 40. If you earn $80,000, you should have around $240,000 in retirement accounts by 40. The benchmark assumes you start saving at 25 and invest consistently through retirement age 67.
Does Social Security count toward my retirement number?
Yes. Social Security reduces how much you need to save on your own. The average Social Security benefit in 2025 was $1,976 per month ($23,712 per year), according to the SSA. Capitalizing that at 4%, it represents roughly $593,000 in retirement assets — significantly lowering your required nest egg.
How does inflation affect retirement savings?
Inflation erodes purchasing power over time. At 3% inflation, $60,000 of today's spending power requires about $97,000 in 15 years. Most retirement projections use a 2–3% inflation assumption. The 4% rule already adjusts withdrawals for inflation annually, which is why it accounts for a 30-year horizon.
Can I retire early with less than $1 million?
It depends on your expenses. If your annual spending is $30,000–$35,000 per year, a $750,000–$875,000 portfolio can support early retirement under the 4% rule. Early retirees often need larger portfolios because their retirement spans 40+ years, which reduces the safe withdrawal rate to closer to 3–3.5%.