Retirement Calculator
Plan to retire comfortably. Estimate your savings target, safe withdrawal rate, inflation-adjusted retirement income, and how long your money will last — all in four calculators.
Calculator 1
How much do you need to retire?
Calculate your total retirement corpus based on your income needs, inflation, and expected returns.
Optional
See your retirement target, income gap, and inflation-adjusted corpus.
Calculator 2
How can you save for retirement?
Set a retirement target and find exactly how much you need to save each month to get there.
Discover exactly how much to save monthly.
Calculator 3
How much can you withdraw after retirement?
Find your safe monthly withdrawal based on your retirement corpus, contributions, and inflation.
Estimate your safe monthly retirement income.
Calculator 4
How long can your money last?
Enter your savings and monthly withdrawal to see when your money runs out — and how to make it last longer.
Find how long your money can realistically last.
Reviewed By
Jennifer Walsh, CFP® — Retirement Planning Specialist
Retirement formulas, tax-advantaged account rules, and withdrawal-rate guidance on this page are cross-checked against publications from the IRS, Social Security Administration, Vanguard, Fidelity, and Morningstar. Read our full Editorial Policy.
What is retirement planning?
Retirement planning is the process of determining how much money you'll need in retirement and creating a strategy to accumulate it. It involves estimating your future expenses, accounting for inflation, choosing investment vehicles, and deciding at what age you want to stop working. The earlier you start, the more compounding growth works in your favor.
A solid retirement plan answers four key questions: How much do I need? How do I save enough? How much can I safely withdraw? How long will my money last? This page addresses all four with dedicated calculators.
How much money do you need to retire?
The most common rule of thumb is that you need 25× your annual retirement expenses saved (the "25x rule"), which corresponds to a 4% annual withdrawal rate. However, the right amount depends on your lifestyle, healthcare costs, inflation, and how long you live.
The 4% Rule
Withdraw 4% of your corpus annually. Historically this has lasted 30 years in most market conditions. A $1M corpus → $40K/year.
Inflation Factor
A 6% inflation rate doubles the cost of living every 12 years. Your corpus must grow in real terms to maintain purchasing power.
Life Expectancy
Planning for age 90 instead of 80 requires significantly more savings. Better to over-save than to run out in your 80s.
The 4% rule explained
The 4% rule originated from the Trinity Study (1998), which found that a portfolio of 50–75% stocks could sustain 4% annual withdrawals (adjusted for inflation) for 30 years in 95%+ of historical scenarios. It remains one of the most widely-cited guidelines in retirement planning.
However, with low interest rates and longer life expectancies, many financial advisors suggest 3–3.5% as a more conservative rate, especially for early retirees who may need funds to last 40+ years.
How to start saving early
Start now, not later
$200/month invested from age 25 to 60 at 10% return grows to ~$631K. Starting at 35 gives only ~$226K — less than 1/3 the result for the same monthly dollars.
Maximize tax-advantaged accounts
Use 401(k), IRA, PPF, NPS, ELSS — whichever is available in your country. Tax savings compound just like returns.
Increase savings with income
Commit to saving at least 50% of every raise or bonus. Lifestyle inflation is the biggest retirement planning risk.
Diversify investments
Mix equities for growth and fixed income for stability. As you near retirement, gradually shift toward lower-risk assets.
What is Retirement?
Retirement is the stage of life when a person stops working full-time and relies on savings, investments, pension, or other income sources to sustain their lifestyle. For most people, retirement can last 20–30 years or more — which is exactly why planning it properly is not optional, it's essential.
A well-planned retirement gives you the freedom to do what you love — travel, spend time with family, pursue hobbies — without worrying about money. A poorly planned one can mean financial stress, dependence on others, and a reduced quality of life.
Why Retirement Planning is Important
Most people underestimate how much money they'll need — and how quickly it disappears without a strategy. Without proper planning, you may face:
Financial insecurity
Outliving your savings is one of the biggest financial fears — and one of the most preventable with early planning.
Dependence on others
Without independent savings, you may have to rely on children or government support, limiting your freedom.
Reduced lifestyle quality
Inflation and rising healthcare costs mean your money buys less each year. A plan accounts for this reality.
Stress during old age
Financial worries in your 70s are far harder to address than they are in your 30s. The earlier you plan, the more options you have.
A good retirement plan gives you financial freedom and peace of mind — the two things money truly can buy when planned wisely.
How Much Should You Save? (3 Key Rules)
Rule 1: The 10–15% Savings Rule
Save at least 10–15% of your annual income consistently throughout your working years. If you start in your 20s, 10% is often enough. If you start later, aim for 20–25% to compensate for lost compounding time.
Rule 2: The 70–80% Income Rule
In retirement, you'll typically need 70–80% of your current annual income to maintain your lifestyle. You spend less on commuting and work clothes, but more on healthcare and leisure. Use 80% as a safe estimate.
Rule 3: The 4% Withdrawal Rule
The 4% rule states that if you withdraw 4% of your savings in year one of retirement and adjust for inflation annually, your money should last at least 30 years. This translates to a simple formula for your required corpus:
Example: If you need $60,000/year in retirement → Required Corpus = $1,500,000 ($1.5 million)
Impact of Inflation on Retirement
This is where most people make their biggest mistake. Inflation silently erodes the purchasing power of money — $100 today will not buy the same things 20–30 years from now. The Federal Reserve targets 2% inflation, but historical US inflation has averaged about 3% over the past century (BLS CPI data).
4%
Low inflation
~18 years to halve value
6%
Moderate (India avg)
~12 years to halve value
8%
High inflation
~9 years to halve value
That's why the retirement calculators above use real returns (investment return minus inflation) to give you an accurate picture. Always plan with inflation factored in — your future self will thank you.
Common Sources of Retirement Income
A strong retirement plan never depends on a single income stream. The more sources you have, the more resilient your plan is.
Government Benefits
- Social security / pension
- EPF / NPS (India)
- State retirement schemes
Employer Plans
- Employer provident fund
- Pension plans
- Gratuity / end-of-service benefits
Personal Investments
- Stocks & mutual funds
- Real estate / REITs
- Fixed deposits & bonds
Savings & Passive Income
- Rental income
- Dividends
- Business income or part-time work
Tips to Build a Strong Retirement Plan
Start investing early — compounding is the most powerful force in personal finance.
$500/month for 30 years at 10% = ~$1.13M. For 20 years = ~$382K. Time matters far more than amount.
Increase your savings rate as your income grows.
Commit to directing at least half of every salary increase into retirement savings before lifestyle inflation claims it.
Diversify across asset classes and geographies.
Don't put everything in one stock, one fund, or one country. Spread across equity, debt, real estate, and international exposure.
Don't rely on a single income source in retirement.
Multiple streams — pension, dividends, rental — create resilience. If one dries up, others sustain you.
Review and rebalance your plan every year.
Life changes. Income changes. Markets change. An annual review keeps your plan aligned with your current reality.
Common Mistakes in Retirement Planning
These are the most frequent errors that cost people years of financial security — and all of them are avoidable:
✕ Starting too late
Every decade of delay roughly doubles the monthly savings needed to reach the same goal.
✕ Ignoring inflation
Planning with nominal returns instead of real returns makes your corpus look much larger than it actually will be.
✕ Underestimating expenses
Healthcare, travel, and home maintenance costs often rise in retirement. Build in a 20% buffer.
✕ Relying only on savings, not investments
Money sitting in a savings account loses to inflation. It needs to be invested to grow in real terms.
✕ Not adjusting plans over time
A plan made at 30 needs to be updated at 40 and 50. Income, family, and goals all change.
✕ Withdrawing retirement savings early
Premature withdrawals break the compounding chain and often come with taxes and penalties.
Retirement is not just about stopping work.
It's about maintaining your lifestyle and peace of mind without financial stress. The earlier you plan, the more choices you have. Use the calculators above to take control of your financial future today.
Can I Retire Early? Understanding FIRE
The FIRE movement (Financial Independence, Retire Early) is built on a simple equation: save enough that 3–4% annual withdrawals from your portfolio cover your expenses indefinitely. The math is unforgiving — retire at 40, you need ~33× annual expenses; retire at 60, ~25× is enough.
| FIRE Variant | Annual Spending | Corpus (25x) | Corpus (33x, early) |
|---|---|---|---|
| Lean FIRE | $25,000 | $625,000 | $825,000 |
| Regular FIRE | $50,000 | $1,250,000 | $1,650,000 |
| Fat FIRE | $100,000 | $2,500,000 | $3,300,000 |
| Chubby FIRE | $150,000 | $3,750,000 | $4,950,000 |
✅ FIRE math basics
- • 25x annual expenses → 4% withdrawal rule
- • 33x annual expenses → 3% withdrawal (for 40+ year horizons)
- • Coast FIRE: save enough by age 35, then compounding alone gets you to 65
- • Barista FIRE: enough to cover expenses with part-time income
❌ FIRE risks to understand
- • Sequence-of-returns risk in the first 5 years is brutal
- • 401(k)/IRA access locked until 59½ (penalty before)
- • ACA health insurance pre-Medicare ($600–$1,200/mo for a family)
- • Inflation over 40 years dramatically erodes purchasing power
For the math of accumulating a FIRE corpus, use our Compound Interest Calculator to model monthly investment growth at S&P 500 historical returns.
How Much Retirement Income Will You Need?
Most US retirees need 70–85% of pre-retirement income to maintain their lifestyle. Fidelity recommends targeting 75%. The exact ratio depends on what changes after you stop working: lower commuting and work-clothing costs, but higher healthcare, travel, and leisure spending.
70% Rule
Conservative-spending retirees with a paid-off mortgage and low travel ambitions. Common for late retirees (age 67+).
75% Rule
Fidelity's recommended target. Balanced — assumes a modest reduction in commuting and work clothes but maintained lifestyle.
85% Rule
Active retirees planning extensive travel, hobbies, helping adult children, or living in a high-cost-of-living area.
| Pre-Retirement Income | 70% Need | 75% Need | 85% Need |
|---|---|---|---|
| $60,000 | $42,000 | $45,000 | $51,000 |
| $100,000 | $70,000 | $75,000 | $85,000 |
| $150,000 | $105,000 | $112,500 | $127,500 |
| $200,000 | $140,000 | $150,000 | $170,000 |
All amounts in today's dollars. Multiply by ~1.8 to reach the equivalent dollar amount needed in 20 years (assuming 3% inflation), or use Calculator 1 above for inflation-adjusted projections.
Retirement Savings Benchmarks by Age
Fidelity's widely-cited benchmarks suggest how much of your annual salary you should have saved by each age milestone. These targets assume retirement at 67 with a 75% income replacement goal.
| Age | Recommended Savings | $50K salary | $100K salary |
|---|---|---|---|
| 25 | 0.5× salary | $25,000 | $50,000 |
| 30 | 1× salary | $50,000 | $100,000 |
| 35 | 2× salary | $100,000 | $200,000 |
| 40 | 3× salary | $150,000 | $300,000 |
| 45 | 4× salary | $200,000 | $400,000 |
| 50 | 6× salary | $300,000 | $600,000 |
| 55 | 7× salary | $350,000 | $700,000 |
| 60 | 8× salary | $400,000 | $800,000 |
| 67 | 10× salary | $500,000 | $1,000,000 |
Source: Fidelity Investments retirement savings benchmarks. Behind on these targets? Increase your contribution rate, take full advantage of any 401(k) employer match, and use our SIP Calculator to model catch-up contributions year-by-year.
Best Investment Options for Retirement
Maximize tax-advantaged accounts first, then move to taxable brokerage. The ideal order of operations for most US workers:
401(k) up to employer match
Free money. A 50% match on the first 6% of salary = a guaranteed 50% return. 2024 contribution limit: $23,000 ($30,500 if 50+).
Roth IRA up to $7,000/year
Tax-free growth and tax-free withdrawals in retirement. Ideal if you expect to be in a higher tax bracket later. 2024 limits: $7,000 ($8,000 if 50+).
Max 401(k) beyond the match
Tax-deferred growth. Reduces your taxable income today. Pre-tax 401(k) is best if you expect a lower tax bracket in retirement.
HSA if eligible
Triple tax-advantaged: deductible contribution, tax-free growth, tax-free medical withdrawals. 2024 limits: $4,150 individual / $8,300 family.
Taxable brokerage
No contribution limits. Use low-cost index funds (Vanguard VTI, VOO, VXUS or Fidelity ZERO funds) for diversification. Long-term capital gains tax: 0%, 15%, or 20% based on income.
Outside the US? Canada: RRSP + TFSA. UK: ISA + workplace pension. Australia: superannuation. India: PPF, EPF, NPS, ELSS. The principle is universal — tax-advantaged accounts first, low-cost index funds second.
Understanding Your Retirement Readiness Score
A retirement readiness score is the ratio of your projected corpus to your required corpus. After running Calculator 1 above, compute it as: Score = (Projected Corpus ÷ Corpus Needed) × 100. Most US households score 50–80%; under 50% requires significant lifestyle or savings-rate change.
90–100%+
On Track
You're set. Consider Roth conversions and tax-efficient withdrawal sequencing.
70–89%
Close
Small adjustments: increase savings 2–5%, delay retirement 1–2 years.
50–69%
Gap exists
Material gap. Increase savings 10–15%, delay retirement 3–5 years, or reduce target spending.
< 50%
Major gap
Major restructuring needed: aggressive savings, delayed retirement, downsized lifestyle, or all three.
Frequently Asked Questions
Authors & Financial Review
Written By
SamCalculator Editorial Team
Personal finance writers and analysts producing evidence-based retirement, investing, and tax-account content sourced from the IRS, SSA, Federal Reserve, Fidelity, Vanguard, and Morningstar. Read more on our About page.
Reviewed By
Jennifer Walsh, CFP®
Certified Financial Planner® with 15+ years of retirement planning, Social Security optimization, and tax-advantaged account advisory experience. Reviews retirement formulas, withdrawal rules, and tax-account explanations on this page.
Last reviewed: May 12, 2026 · Last updated: May 12, 2026
Trusted Sources & References
- IRS — Retirement Plans: 401(k), IRA, Roth, SEP, SIMPLE
- Social Security Administration — Retirement Benefits
- Vanguard — Retirement Planning Resources
- Fidelity — How much do I need to retire? (savings benchmarks by age)
- Morningstar — Retirement Research & Safe Withdrawal Studies
- Federal Reserve — 2022 Survey of Consumer Finances (US retirement savings data)
- CFPB — Planning for Retirement
- Bengen, William P. (1994). "Determining Withdrawal Rates Using Historical Data" — origin of the 4% rule.
- Cooley, Hubbard, & Walz (1998). "Retirement Savings: Choosing a Withdrawal Rate That Is Sustainable" (Trinity Study).
Want to model your monthly contributions in detail? The SIP Calculator shows year-by-year growth for any monthly investment amount, including 401(k) employer match and annual contribution increases. For lump-sum growth projections, try the Compound Interest Calculator. To estimate any debt that should be cleared before retirement, see the Loan Calculator.
Financial Disclaimer: This retirement calculator is provided for educational and informational purposes only and is not financial, tax, legal, or investment advice. Projections are based on hypothetical, constant rates of return and inflation and do not account for fees, taxes (unless you input one), sequence-of-returns risk, Social Security changes, healthcare cost spikes, or actual market volatility. Past performance does not guarantee future results. Before making retirement, withdrawal, or investment decisions, consult a fiduciary financial advisor, Certified Financial Planner® (CFP), or CPA licensed in your jurisdiction. SamCalculator does not provide investment advice, manage assets, sell financial products, or receive commissions from any financial institution.
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