Calculateus

Retirement Calculator

Estimate your retirement nest egg based on savings rate, growth and years to retirement.

Result

Projected Nest Egg
$1,130,650.34
Sustainable Annual Income
$45,226.01
Total Contributions
$230,000.00
Total Growth
$900,650.34
Nest EggContributions
$2.0M$1.5M$1.0M$500K$0Nest Egg - Age 31: $28KNest Egg - Age 32: $36KNest Egg - Age 33: $45KNest Egg - Age 34: $54KNest Egg - Age 35: $64KNest Egg - Age 36: $75KNest Egg - Age 37: $87KNest Egg - Age 38: $99KNest Egg - Age 39: $112KNest Egg - Age 40: $127KNest Egg - Age 41: $142KNest Egg - Age 42: $159KNest Egg - Age 43: $176KNest Egg - Age 44: $195KNest Egg - Age 45: $215KNest Egg - Age 46: $237KNest Egg - Age 47: $261KNest Egg - Age 48: $286KNest Egg - Age 49: $312KNest Egg - Age 50: $341KNest Egg - Age 51: $372KNest Egg - Age 52: $405KNest Egg - Age 53: $441KNest Egg - Age 54: $479KNest Egg - Age 55: $520KNest Egg - Age 56: $563KNest Egg - Age 57: $610KNest Egg - Age 58: $661KNest Egg - Age 59: $714KNest Egg - Age 60: $772KNest Egg - Age 61: $834KNest Egg - Age 62: $901KNest Egg - Age 63: $972KNest Egg - Age 64: $1.0MNest Egg - Age 65: $1.1MContributions - Age 31: $26KContributions - Age 32: $32KContributions - Age 33: $38KContributions - Age 34: $44KContributions - Age 35: $50KContributions - Age 36: $56KContributions - Age 37: $62KContributions - Age 38: $68KContributions - Age 39: $74KContributions - Age 40: $80KContributions - Age 41: $86KContributions - Age 42: $92KContributions - Age 43: $98KContributions - Age 44: $104KContributions - Age 45: $110KContributions - Age 46: $116KContributions - Age 47: $122KContributions - Age 48: $128KContributions - Age 49: $134KContributions - Age 50: $140KContributions - Age 51: $146KContributions - Age 52: $152KContributions - Age 53: $158KContributions - Age 54: $164KContributions - Age 55: $170KContributions - Age 56: $176KContributions - Age 57: $182KContributions - Age 58: $188KContributions - Age 59: $194KContributions - Age 60: $200KContributions - Age 61: $206KContributions - Age 62: $212KContributions - Age 63: $218KContributions - Age 64: $224KContributions - Age 65: $230KAge 31Age 36Age 41Age 46Age 51Age 56Age 61

About the Retirement Calculator

Retirement planning comes down to one core question: will your savings, growing at a reasonable rate, actually support the income you'll need? Our Retirement Calculator projects your nest egg at retirement age based on your current savings, monthly contributions, and expected investment return, then estimates a sustainable annual income from it.

How It Works

Using your current age and target retirement age, the calculator determines how many years your money has to grow. It then compounds your current savings and monthly contributions at your expected annual return over that time. Finally, it applies your chosen withdrawal rate to the projected balance to estimate a sustainable annual income in retirement.

Nest egg = compound growth of current savings + monthly contributions over time Annual income ≈ Nest egg × withdrawal rate

Formula & Methodology

The projection phase uses the same compound-growth-plus-contributions math as any long-term investment projection. The withdrawal phase applies a 'safe withdrawal rate' - commonly 4%, based on historical research into how much a diversified portfolio can support annually without running out of money over a typical multi-decade retirement - as a simple multiplier against the final balance, rather than modeling actual year-by-year market returns during retirement.

Step-by-Step: Calculating It By Hand

  1. 1Find the number of years between your current age and target retirement age.
  2. 2Compound your current savings and monthly contributions forward using your expected rate of return over that many years.
  3. 3Multiply the resulting nest egg by your chosen withdrawal rate to estimate sustainable annual income.
  4. 4Divide by 12 if you want a monthly income figure instead.

Examples

30 years to grow

Starting at age 30 with $20,000 saved and $500/month at a 7% return, by age 65 the projected balance is well over $700,000.

Starting later

The same monthly contribution starting at age 45 instead of 30 results in a significantly smaller balance at 65 - a clear illustration of why time matters more than almost any other factor.

Advantages

  • Combines your current savings, future contributions, and growth in one projection
  • Translates a lump-sum nest egg into an estimated annual income
  • Lets you test different retirement ages and contribution levels instantly
  • Free to use as many times as you want while you plan

Common Mistakes

  • Assuming a constant rate of return with no market volatility
  • Not adjusting the withdrawal rate for a longer-than-average retirement
  • Ignoring Social Security or pension income when estimating total retirement income
  • Underestimating how inflation reduces future purchasing power

Edge Cases to Watch For

  • The 4% rule was derived from historical US market data over rolling 30-year periods - a longer retirement (say, retiring at 45) generally warrants a lower, more conservative withdrawal rate.
  • This projection assumes a constant annual return, while real portfolios experience volatility, and poor returns early in retirement can be more damaging than the same poor returns later (sequence-of-returns risk).
  • Social Security and any pension income aren't included here and should be added separately to get a complete retirement income picture.
  • Required minimum distributions on traditional retirement accounts can force withdrawals at a specific age regardless of what this calculator's withdrawal rate suggests.

Common Use Cases

  • Checking whether your current savings rate is on track
  • Testing how increasing monthly contributions changes your outcome
  • Comparing different retirement ages
  • Setting a savings goal for a specific target income
Written & fact-checked by the Calculateus TeamLast updated August 5, 2026How we verify our formulas

Frequently asked questions

What withdrawal rate should I use?

4% is the traditional "safe withdrawal rate" rule of thumb from the Trinity Study, designed to make savings last 30 years. Some planners now suggest 3-3.5% for extra safety given longer lifespans and market uncertainty.

Related calculators

Currency ConverterConvert between 30 major world currencies using live exchange rates.Mortgage CalculatorEstimate your monthly mortgage payment including principal, interest, taxes, insurance, PMI and HOA.Mortgage Payoff CalculatorSee how much faster you can pay off your mortgage - and how much interest you'll save - with extra monthly payments.Refinance CalculatorCompare your current mortgage to a new refinanced loan and see your monthly savings and break-even point.

Related articles

Effective vs. Marginal Tax Rate: Why They're So DifferentThese two numbers are often confused, but they answer completely different questions. Here's how to calculate both correctly.What Your Marginal Tax Rate Actually MeansYour marginal tax rate is the rate on your next dollar of income, not your whole income. Here's why that distinction matters so much.How Property Tax Is Calculated on Your HomeProperty tax is based on assessed value, not market value — and the two aren't always the same number. Here's how it actually works.

Conclusion

There's no way to predict markets perfectly, but a reasonable projection is far better than no projection at all. Use this calculator as a starting point, revisit it every year or two as your income and goals change, and pair it with our 401(k) and Social Security calculators for a fuller retirement picture.

References