Finance calculators

Retirement Calculator

Updated Sep 11, 2026 By Infinity Calculator
Personal Information
Enter age 18–100
Must be greater than current age
Must be greater than retirement age
Income & Lifestyle
Percentage of current income needed in retirement.
Savings & Contributions
Percentage of annual income contributed to retirement.
Extra monthly savings beyond employer plan.
Employer contribution as % of your salary.
Itemize by Account Type (Optional)
Investment & Economic Assumptions

Retirement Readiness Summary

You're on track to meet your retirement goals!
Nest Egg Needed
$1,250,000
Projected Savings at Retirement
$1,450,000
Surplus / Shortfall
+$200,000
Retirement Income Needed (Year 1)
$56,250
Annual Income from Savings
$36,250
Social Security (Today's $)
$20,000
Total Contributions
$350,000
Investment Growth
$1,100,000

Savings Plan to Reach Your Goal

Target at Retirement
$1,500,000
Required Monthly Savings
$850
Required Annual Savings
$10,200
Required % of Income
13.6%
Total Contributions Needed
$350,000
Growth from Investments
$1,100,000

Safe Withdrawal Estimate

Portfolio Balance
$1,000,000
Safe Annual Withdrawal
$45,000
Safe Monthly Withdrawal
$3,750
Withdrawal Rate
4.5%
Plus Social Security
$20,000/yr
Total Annual Income
$65,000

How Long Will Your Money Last?

Your money should last through retirement!
Portfolio Balance
$1,000,000
Monthly Withdrawal
$5,000
Money Lasts Until Age
92
Years of Withdrawals
27
Total Withdrawn
$1,620,000
Remaining Balance
$0
Portfolio Composition at Retirement
Projected Balance Over Time
Year-by-Year Breakdown

Introduction

Planning for retirement can feel overwhelming, but it doesn't have to be. Our Retirement Calculator helps you figure out how much money you'll need to retire comfortably and whether you're on track to get there. Just enter a few basic details, like your age, income, savings, and how much you put away each month, and the calculator does the calculations. It shows you how your money can grow over time and what your nest egg could look like when you're ready to stop working. This tool gives you a clear picture of where you stand so you can make smarter choices with your money today.

How to Use Our Retirement Calculator

Enter details about your age, income, savings, and investment assumptions to see if you are on track for retirement. The calculator has four modes that each answer a different question about your retirement plan.

Current Age: Enter how old you are right now. This is the starting point for all projections.

Retirement Age: Enter the age when you plan to stop working. This must be older than your current age.

Life Expectancy: Enter the age you expect to live to. A good rule is to plan for age 85 to 95 so you don't run out of money. This must be older than your retirement age.

Current Annual Income: Enter your total yearly income before taxes. This is used to figure out your retirement income needs and contribution amounts.

Annual Income Growth: Enter the percentage you expect your salary to grow each year. The average is about 3% to 4%.

Desired Retirement Income: Choose whether to enter this as a percentage of your current income or as a fixed dollar amount per year. Most people need about 70% to 80% of their pre-retirement income.

Current Total Retirement Savings: Enter the total amount you have saved for retirement right now across all accounts. You can also click "Itemize by Account Type" to break this down by 401(k), Traditional IRA, Roth IRA, Brokerage, and Other accounts.

Regular Contributions: Enter how much you put toward retirement each year, either as a percentage of your income or a fixed dollar amount.

Additional Monthly Contributions: Enter any extra monthly savings you make beyond your main retirement plan, such as contributions to a separate IRA or brokerage account.

Employer Match: Enter the percentage of your salary that your employer contributes to your retirement plan. For example, if your employer matches 50% of your contributions up to 6% of your salary, that equals a 3% match.

Pre-Retirement Return: Enter the average annual return you expect your investments to earn before you retire. A moderate estimate is 7%, which accounts for a mix of stocks and bonds.

Post-Retirement Return: Enter the average annual return you expect after you retire. This is usually lower, around 4% to 6%, because retirees often invest more conservatively.

Inflation Rate: Enter the expected average annual inflation rate. The historical average is about 3%. This adjusts your future income needs upward to reflect rising costs.

Expected Social Security (Annual): Enter the yearly Social Security benefit you expect to receive in today's dollars. The average retired-worker benefit was $2,085.98 per month in July 2026.1 That is about $25,000 a year. Enter $0 if you want to plan without it.

Target Retirement Savings (How Should I Save tab): Enter the total dollar amount you want to have saved by the time you retire. The calculator will tell you how much you need to save each month and year to reach that goal.

Current Portfolio Balance (How Much Can I Withdraw and How Long Will It Last tabs): Enter the total value of your retirement portfolio at or near retirement. This is used to calculate safe withdrawal amounts or how many years your money will last.

Desired Monthly Withdrawal (How Long Will It Last tab): Enter the monthly amount you want to take out of your retirement savings in today's dollars. The calculator will show you what age your money will run out.

What Is Retirement Planning?

Retirement planning is the process of figuring out how much money you need to save so you can stop working someday and still pay your bills. It means looking at your income today, deciding when you want to retire, and making a plan to grow your savings over time. The earlier you start, the more time your money has to grow through compound interest, which is when your investment earnings start earning their own returns.

How Much Money Do You Need to Retire?

A common rule of thumb is that you will need about 70% to 80% of your current income each year in retirement. So if you earn $75,000 a year now, you might need between $52,500 and $60,000 per year once you retire. However, this number changes for everyone. Your actual needs depend on where you live, whether you still have a mortgage, your health care costs, and the lifestyle you want.

To figure out the total savings you need (often called your retirement nest egg), you multiply your yearly spending needs by the number of years you expect to be retired. You also have to account for inflation, which is the gradual rise in prices over time. Something that costs $50,000 today could cost over $100,000 in 25 years at a 3% inflation rate.

Key Factors That Affect Your Retirement Savings

  • Your current age and retirement age: The gap between these two numbers is your saving window. A 30-year-old retiring at 65 has 35 years to save, while a 45-year-old has only 20.
  • Rate of return: This is how fast your investments grow each year. Stocks have historically returned about 7% per year after inflation, while bonds return less. Before retirement, many people invest more aggressively. After retirement, they shift to safer investments with lower returns, typically around 4% to 6%. A quick way to estimate how fast your money doubles is the Rule of 72 Calculator.
  • Inflation: The long-term U.S. average is roughly 3% per year. Inflation quietly eats away at your purchasing power, which means you need more money in the future to buy the same things you buy today.
  • Social Security: Social Security retirement benefits can start as early as age 62, and full retirement age is 67 for anyone born in 1960 or later.2 The average retired-worker benefit was $2,085.98 per month in July 2026.1 That is about $25,000 a year. This reduces the amount you need to pull from your own savings, but it usually is not enough to live on by itself.
  • Employer match: Many employers will match a portion of your 401(k) contributions. For example, they might contribute 50 cents for every dollar you put in, up to 6% of your salary. This is essentially free money and one of the fastest ways to grow your retirement savings.
  • Life expectancy: U.S. life expectancy at birth was 78.4 years in 2023.4 Many people live into their 90s, and planning for a longer life, say age 90 or 95, helps make sure you don't run out of money.

The 4% Rule for Withdrawals

One of the most well-known guidelines in retirement planning is the 4% rule. It says you can withdraw 4% of your total savings in your first year of retirement, then adjust that amount for inflation each year after that. Under historical market conditions, this approach has a strong chance of making your money last at least 30 years.3 For example, if you have $1,000,000 saved, you could withdraw about $40,000 in your first year.

The 4% rule is a useful starting point, but it is not perfect for everyone. If the stock market performs poorly early in your retirement, or if you live longer than expected, you may need to withdraw less. If your portfolio earns strong returns, you might be able to take out more.

Types of Retirement Accounts

There are several common accounts used to save for retirement, and each one has different tax rules:

  • 401(k): Offered by employers. You contribute pre-tax dollars, which lowers your taxable income now. You pay taxes when you withdraw money in retirement.
  • Traditional IRA: Similar to a 401(k) in that contributions may be tax-deductible. You pay taxes on withdrawals.
  • Roth IRA: You contribute money you have already paid taxes on, but qualified withdrawals in retirement are tax-free.5 This is especially helpful if you expect to be in a higher tax bracket later.
  • Brokerage accounts: These are regular investment accounts with no special tax benefits, but they also have no contribution limits or withdrawal restrictions.

Why Starting Early Matters

Time is the most powerful tool in retirement planning. If you save $500 a month starting at age 25 with a 7% return, you would have about $1,200,000 by age 65. If you wait until age 35 to start saving the same amount, you would only have about $567,000. That 10-year head start more than doubles your money, not because you saved twice as much, but because compound growth had more time to work. The concept behind this is sometimes called Coast FIRE: reaching a savings amount early enough that investment growth alone carries you to your retirement goal.


Formulas used

Inflation-Adjusted Retirement Income (Year 1)
I_{ret} = I_{today} \times (1 + i)^{n}
Annual Need from Savings
W = I_{ret} - SS \times (1 + i)^{n}
Nest Egg Needed (Present Value of Annuity)
PV = W \times \frac{1 - (1 + r_{real})^{-T}}{r_{real}}, \quad r_{real} = r_{post} - i
Projected Savings at Retirement (Year-by-Year Accumulation)
B_y = B_{y-1} \times (1 + r_{pre}) + C_y + M_y + A_y
Required Annual Savings to Reach Target
PMT = \frac{(Target - S_0 \times (1+r)^{n}) \times r}{(1+r)^{n} - 1}
Safe Annual Withdrawal (Amortization of Portfolio)
WD = P \times \frac{r_{real}}{1 - (1 + r_{real})^{-T}}, \quad r_{real} = r_{post} - i
Future Value of Growing Annuity
FV = PMT \times \frac{(1+r)^{n} - (1+g)^{n}}{r - g}

Frequently asked questions

What retirement age should I use?

Most people plan to retire between ages 62 and 67. Age 65 is a common choice. If you want to retire early, enter a younger age, but keep in mind you'll need more savings since your money has to last longer. If you plan to work past 65, you'll have more time to save and a shorter retirement to fund.

What life expectancy should I enter?

It's smart to plan for a longer life than average. U.S. life expectancy at birth was 78.4 years in 2023.4 Many people live into their 90s. Entering 85 to 95 gives you a safety cushion so you're less likely to outlive your savings. If your family has a history of long lives, consider using 95 or higher.

What is a good rate of return to use before retirement?

A common estimate is 7%, which reflects the historical average stock market return adjusted for inflation. If you invest more conservatively with a mix of bonds, 5% to 6% may be more realistic. If you invest aggressively in mostly stocks, 8% to 10% is possible but less certain.

Why is the post-retirement return lower than the pre-retirement return?

After you retire, most people shift their investments to safer options like bonds and dividend stocks. These are less risky but earn lower returns. A typical post-retirement return is 4% to 6%. Using a lower number also protects you in case the market doesn't perform well during your retirement years.

Should I include Social Security in my plan?

Yes, for most people Social Security will be a real source of income in retirement. The average retired-worker benefit was $2,085.98 per month in July 2026.1 That is about $25,000 a year. Including it gives you a more accurate picture. However, if you're worried about future cuts to the program, you can enter $0 to see what your plan looks like without it.

What if I don't have an employer match?

Just set the employer match field to 0%. The calculator will only count your own contributions. If you do have a match, make sure to enter it because it's free money that can significantly boost your retirement savings over time.

What inflation rate should I use?

The long-term U.S. average is about 3% per year. This is a good default for most people. If you want to be more conservative, you can use 3.5% or 4%. Inflation matters because it increases the cost of everything you buy, so your retirement income needs to grow over time to keep up.

What is a retirement nest egg?

A retirement nest egg is the total amount of money you have saved and invested by the time you retire. It includes everything in your 401(k), IRAs, brokerage accounts, and any other savings earmarked for retirement. This is the pool of money you'll draw from to pay your bills once you stop working.

What does surplus or shortfall mean in the results?

A surplus means your projected savings at retirement are more than what you need. That's good. You have extra cushion. A shortfall means your projected savings fall short of what you need. If you see a shortfall, consider saving more each month, working a few extra years, or reducing your expected retirement spending.

What is the difference between pre-tax and post-tax retirement accounts?

Pre-tax accounts like a 401(k) or Traditional IRA let you save money before paying income tax. You pay taxes later when you withdraw. Post-tax accounts like a Roth IRA use money you've already paid taxes on, but qualified withdrawals in retirement are tax-free.5 This calculator focuses on total balances and doesn't model taxes directly, so keep tax impacts in mind separately.

How much of my income should I save for retirement?

A common guideline is to save 10% to 15% of your income each year, including any employer match. If you start saving in your 20s, 10% may be enough. If you start later, you may need 15% to 20% or more to catch up. The "How Should I Save" tab can show you the exact percentage needed to hit your goal.


Sources

  1. Monthly Statistical Snapshot, July 2026. Social Security Administration, Office of Retirement and Disability Policy. 2026;Table 2. Accessed September 11, 2026.
  2. Starting Your Retirement Benefits Early. Social Security Administration. Accessed September 11, 2026.
  3. Bengen WP. Determining Withdrawal Rates Using Historical Data. Journal of Financial Planning. 1994;October 1994, reprinted March 2004. Accessed September 11, 2026.
  4. Murphy SL, Kochanek KD, Xu JQ, Arias E. Mortality in the United States, 2023. NCHS Data Brief No. 521. National Center for Health Statistics. 2024;Key findings. Accessed September 11, 2026.
  5. Roth IRAs. Internal Revenue Service. Accessed September 11, 2026.