Retirement Nest Egg Calculator
Find the savings target your retirement needs.
Results update as you type.
How it works
The nest egg target shown here is the total amount you would need saved to fund your retirement, based on the annual expenses you expect and the rate at which you plan to withdraw from your savings each year. It matters because retirement planning hinges on a single big question — how much is enough — and framing it around a sustainable withdrawal rate turns an abstract worry into a concrete number to aim for. This retirement nest egg calculator divides your desired annual spending by your withdrawal rate to find the portfolio size that can support that spending. The logic is the mirror image of the well-known 4% rule: if you plan to withdraw 4% of your savings in the first year, you need twenty-five times your annual expenses, because dividing by 0.04 is the same as multiplying by twenty-five. A lower withdrawal rate demands a larger nest egg but is safer against outliving your money, while a higher rate needs less saved but carries more risk. Savers use this target to set a retirement goal, to see how their spending assumptions drive the number, and to test how conservative or aggressive a withdrawal rate changes what they must accumulate. Treat the result as a planning guidepost: it does not account for Social Security, pensions, taxes, market sequence risk or changing expenses, so refine it with a fuller retirement plan as your date approaches.
Nest egg = annual expenses ÷ (withdrawal rate ÷ 100) · Monthly income = annual expenses ÷ 12
Annual expenses is the yearly spending you want your savings to cover, and the withdrawal rate is the percentage of your nest egg you plan to draw each year. Dividing the withdrawal rate by 100 turns it into a decimal, and dividing your annual expenses by that decimal gives the total savings whose withdrawal rate produces exactly your spending. A 4% rate, for instance, means dividing by 0.04, or multiplying expenses by twenty-five. The monthly income figure simply divides annual expenses by twelve to show the spending the target is built to support.
Source:U.S. SEC — Investor.gov
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter annual retirement expenses and safe withdrawal rate.
- 2
Adjust the options
Fine-tune any options to match your situation.
- 3
Read your result
Nest egg target updates instantly as you type — no button to press.
Frequently asked questions
What is the 4% rule?
The 4% rule is a retirement guideline suggesting you can withdraw 4% of your savings in your first year of retirement, then adjust that amount for inflation each year, with a strong chance the money lasts about thirty years. It implies a nest egg of twenty-five times your annual expenses. It comes from historical market studies and is a useful starting point, though it is a rule of thumb rather than a guarantee.
How does the withdrawal rate change my target?
The withdrawal rate is the denominator, so a lower rate means a larger nest egg and a higher rate a smaller one. Withdrawing 3% requires about thirty-three times your annual expenses, while 5% requires only twenty times. A lower rate is more conservative and better protects against outliving your savings or a rough market early in retirement, but demands that you save more. The right rate balances safety against how much you can realistically accumulate.
Does this account for Social Security or a pension?
No. The target reflects funding your full annual expenses from savings alone. If you expect Social Security, a pension or other income in retirement, you can subtract that annual income from your expenses first, then enter only the shortfall your savings must cover. That reduces the nest egg you need. This tool deliberately keeps the calculation simple, so layer in guaranteed income sources separately to refine your true savings goal.
Is the nest egg target adjusted for inflation and taxes?
The target is in today's dollars and does not model taxes. In practice, inflation raises your spending needs over time, and the classic 4% rule assumes you increase withdrawals with inflation each year, which the underlying studies build in. Taxes on withdrawals from pre-tax accounts also reduce what you can spend. Treat the figure as a real-terms planning estimate, and account for your expected tax situation when judging how much spendable income it truly provides.
How accurate is this as a retirement plan?
It is a helpful first estimate, not a complete plan. It assumes steady spending, a fixed withdrawal rate and ignores market sequence risk — the danger of poor returns early in retirement — as well as changing expenses, healthcare costs and longevity. Real retirement planning also weighs asset allocation, guaranteed income and flexibility to adjust spending. Use this target to set a goal and gauge progress, then build a fuller plan, ideally with a professional, as retirement nears.