Retirement Calculator - Estimate Your Retirement Savings and Income

How Does the Retirement Calculator Work?

A retirement calculator estimates how much money you could accumulate before retirement and whether those savings may be sufficient to support your expected expenses afterward. It brings together your existing savings, future contributions, investment growth, and planned retirement age to project your financial position when you stop working.

The calculation begins with your current retirement savings and the amount you intend to contribute regularly. Your chosen investment return determines how those funds are projected to grow over time, while inflation helps estimate what that future balance will be worth in terms of purchasing power.

The calculator also considers the income you expect to need after retirement. Social Security benefits, pension payments, and other income sources can reduce the amount you must withdraw from your personal savings. By comparing projected assets with future spending requirements, the calculator can identify a potential savings gap and estimate the additional contributions needed to address it.

These projections are based on the financial assumptions you provide. They offer a useful starting point for retirement planning, although actual investment performance, expenses, taxes, and retirement income may differ.

How to Use the Retirement Calculator

Start by entering your current age and the age at which you intend to retire. Then add your existing retirement savings, monthly contributions, and estimated retirement spending. Use the advanced settings to adjust expected investment growth, inflation, and other factors that influence your financial outlook.

Current Age and Planned Retirement Age

Your current age and intended retirement age establish how much time remains to build your savings. Someone who begins saving at 30 and plans to retire at 65 has 35 years for contributions and investment growth, while someone starting at 50 has considerably less time to accumulate the same amount.

Choosing a later retirement age can increase the years available for saving while potentially shortening the period during which your retirement funds must cover living expenses. The calculator lets you compare different retirement ages rather than assuming one retirement date will suit everyone.

Current Retirement Savings

Enter the combined balance of the accounts and investments you intend to use during retirement. This may include employer-sponsored 401(k) plans, traditional and Roth IRAs, and taxable investment accounts reserved for long-term financial needs.

Include the current value of these accounts rather than the total contributions you originally made. Avoid counting the same assets twice, particularly when retirement accounts have been transferred or consolidated.

Monthly Retirement Contributions

Your monthly contribution is the amount you expect to add to retirement savings on a recurring basis. Include personal deposits and any employer contributions you reasonably expect to receive, since both can affect your projected retirement balance.

If you contribute a percentage of your salary, you can estimate the monthly dollar amount using your annual income. For example, setting aside 10% of an $80,000 annual salary represents approximately $667 per month before including any employer contributions.

Small changes in monthly savings can produce substantial differences over several decades because each contribution has the potential to generate additional investment earnings.

Estimated Retirement Expenses

Enter the amount you expect to spend each month after retiring, including housing, groceries, transportation, healthcare, insurance, utilities, and discretionary expenses.

Retirement spending doesn't necessarily mirror the budget you maintain while working. Commuting costs may decline, for example, while travel or healthcare expenses could increase. Mortgage payments and other significant financial obligations may also change.

Using your current household spending as a starting point can help establish a reasonable estimate. The calculator's inflation assumptions can then be used to project how those costs may change before retirement.

Social Security and Other Retirement Income

Include any monthly income you expect to receive from Social Security, a pension, or another dependable source after retirement. These payments can help cover recurring expenses and reduce your reliance on investment withdrawals.

For Social Security, use an estimate based on your earnings record and intended claiming age rather than assuming that every retiree receives the same amount. Pension benefits should likewise reflect the payment arrangement you expect to select.

How Much Money Do You Need to Retire?

The amount needed for retirement depends primarily on your annual expenses, expected retirement income, and the number of years your savings must last. There is no universal retirement savings target that works equally well for every household.

One widely used planning guideline suggests that retirees may need approximately 70% to 80% of their pre-retirement income to maintain a comparable lifestyle. Someone earning $100,000 annually might therefore begin planning around $70,000 to $80,000 in annual retirement income.

However, replacing a percentage of your salary is not always the most accurate way to determine your needs. A household with substantial savings, low housing expenses, and no outstanding debt may require less income than a household facing high medical expenses or ongoing financial obligations.

A more practical approach is to estimate your retirement budget, subtract reliable income sources, and calculate how much must come from savings and investments.

For instance, if you expect to spend $60,000 annually and receive $25,000 from Social Security and pension benefits combined, your personal savings would need to provide approximately $35,000 annually, before accounting for any tax differences or changes in spending.

How Much Should You Save Each Month for Retirement?

The amount you should save each month depends on your retirement target, existing investments, expected returns, and remaining working years. An individual beginning with little savings may need to contribute more aggressively than someone who has already accumulated a substantial retirement portfolio.

A commonly cited starting point is to save approximately 15% of annual pretax income, including eligible employer contributions. While this can provide a useful benchmark, the appropriate savings rate depends on when you begin investing, when you expect to retire, and the lifestyle you hope to maintain.

For example, someone aged 35 with $50,000 already invested who contributes $500 monthly for 30 years could accumulate approximately $803,386 by age 65, assuming a constant 6% annual return compounded monthly and contributions made at the end of each month. This is a hypothetical balance before taxes and fees, not a prediction of actual market performance.

Increasing contributions, extending the savings period, or changing the assumed investment return can materially alter the result. Comparing several scenarios provides a more useful perspective than relying on a single projection.

How Does Inflation Affect Your Retirement Savings?

Inflation reduces the purchasing power of money over time, meaning a retirement balance that appears substantial today may not support the same lifestyle several decades from now.

For example, with an average annual inflation rate of 3%, an expense that costs $4,000 per month today would cost approximately $9,709 per month after 30 years. Although the actual inflation rate will vary, the example illustrates why long-term retirement planning should account for rising prices.

The distinction between future dollars and today's dollars is particularly important when reviewing retirement calculator results. A projected portfolio worth $1 million in 30 years will not necessarily have the purchasing power of $1 million today.

To make retirement estimates more meaningful, the calculator should account for inflation when comparing future savings with expected expenses. Reviewing results in today's purchasing power can also help users understand what their projected balances may realistically support.

How Do Investment Returns Affect Retirement Planning?

Investment returns influence how quickly retirement savings grow and how much personal funding may be needed to reach a financial target. Higher assumed returns generally produce larger projected balances, while lower returns may require additional contributions or more years of saving.

However, investment growth is rarely consistent from one year to the next. Stock markets can experience significant gains and losses, and even diversified portfolios remain exposed to financial risk.

A retirement calculation using a fixed annual rate of return simplifies this uncertainty. It is useful for comparing scenarios but cannot predict future market conditions or guarantee a particular outcome.

Using more conservative assumptions alongside an optimistic projection can reveal how sensitive your retirement plan may be to changes in investment performance. Fees, taxes, and asset allocation should also be considered when choosing an appropriate return assumption.

What Is the 4% Rule for Retirement?

The 4% rule is a retirement withdrawal guideline suggesting that an individual may begin by withdrawing approximately 4% of their investment portfolio during the first year of retirement, then adjust that initial dollar amount for inflation in subsequent years.

Under this approach, a portfolio worth $1 million at retirement would support an initial annual withdrawal of $40,000, or approximately $3,333 per month, before taxes. The withdrawal amount would then be adjusted in later years to reflect inflation rather than recalculated as 4% of the remaining balance every year.

The rule is often used as a starting point for planning a retirement lasting around 30 years. However, it does not guarantee that savings will last for a particular period.

Market downturns early in retirement, unusually high inflation, longer life expectancy, and investment expenses can all affect the sustainability of withdrawals. People planning to retire substantially before the traditional retirement age may need to consider a longer withdrawal period and potentially more conservative assumptions.

How Does Social Security Affect Your Retirement Plan?

Social Security provides an important source of retirement income for eligible American workers and can reduce the amount they need to finance through personal savings.

The monthly benefit depends on factors including your lifetime earnings and the age at which you begin receiving payments. Benefits can generally begin as early as age 62, but claiming before your full retirement age results in a reduced monthly payment.

For people born in 1960 or later, full retirement age is 67. Delaying benefits beyond full retirement age can increase the monthly amount, with delayed retirement credits available through age 70.

The age at which you stop working and the age at which you claim Social Security do not have to be the same. Someone who retires at 63 but delays benefits until 67 must account for the years when personal savings may be needed to cover a larger share of living expenses.

For an estimate based on your own earnings history, consult your Social Security Statement through the Social Security Administration.

How Can a 401(k) or IRA Help You Reach Your Retirement Goal?

A 401(k) or individual retirement account (IRA) can help build retirement savings through long-term investing and federal tax advantages. These accounts are particularly relevant when determining how much of your annual income can be directed toward retirement.

For 2026, the IRS permits eligible employees to contribute up to $24,500 in elective deferrals to most 401(k) plans, excluding applicable catch-up contributions. The annual contribution limit for traditional and Roth IRAs combined is $7,500, with an additional $1,100 catch-up allowance for eligible individuals aged 50 and older.

Certain 401(k) participants aged 50 and older can also make catch-up contributions, with higher limits applying to eligible individuals aged 60 through 63.

Traditional and Roth accounts have different tax treatments, which may affect the amount of spendable income available after retirement. Contribution limits, income restrictions, employer plan provisions, and withdrawal rules should be considered when deciding where to invest.

A retirement calculator can combine the projected balances of these accounts into a broader savings estimate, although it should not be treated as a substitute for individualized tax planning.

Start Planning Your Retirement With Greater Clarity

Retirement planning becomes more practical when future savings, living expenses, and expected income are evaluated together. Rather than relying on a general savings target, a retirement calculator allows you to explore how your financial circumstances may develop over time.

Review your projected retirement balance, adjust your monthly contributions, and test different retirement ages to see how each decision affects your estimate. Revisit the calculation as your income, savings, and long-term goals change.