2026-09-21 7 min read

Retirement Withdrawal Calculator

The sustainable yearly and monthly withdrawal for your retirement. Live calculator with worked steps and charts.

Calculator

Account Balance
$
Withdrawal Rate(%) Help
%

The classic 4% rule: withdraw 4% in year one, then adjust for inflation.

Expected Annual Return(%) Help
%

Before inflation. A 60/40 stock-bond mix has returned roughly 7% a year long-term.

Life Expectancy(years) Help
years

How long the savings must last. Plan to at least 90 — half of 65-year-olds outlive the average.

Current Age(years)
years

This withdrawals & income calculator runs on standard retirement mathematics: contributions compound monthly, withdrawals are tested against growth, and every figure updates live as you type.

Results

Optimal

Annual Withdrawal

$20,000

Monthly Withdrawal

$1,667

Withdrawal Rate

4.00%

Money Lasts

Indefinitely at this rate

Planning Horizon

60years

Live results update as you type — currently showing annual withdrawal of $20,000. Replace the defaults with your own numbers for an exact plan.

Visualizations

Withdrawal vs Remaining (Year 1)

Withdrawn4%
Stays invested96%

Formula

The rate converts savings into yearly and monthly paycheques; the annuity-duration equation tests how long they last at the assumed growth.

Annual = balance × rate; test duration with the annuity equation

Variables

SymbolNameUnitDescription
BBalance$Starting savings.
wWithdrawal rate%Year-one share.

Explanation

The retirement paycheque your balance funds — and whether it outlasts the plan.

Step-by-Step Calculation

Follow each step to understand how the result is calculated from your inputs.

Step 1

Apply the withdrawal rate to the starting balance.

Annual = balance × rate
Balance:$500,000
Rate:4.00%
Result: $20,000/year
Step 2

Divide into monthly paycheques.

Monthly = annual ÷ 12
Result: $1,666.67/month
Step 3

Test how long the money lasts at the assumed growth rate.

Annuity-duration equation at assumed return
Return:7.00%
Result: Indefinitely
Final Answer
$20,000

Worked Examples

See how the calculator works with different scenarios.

Scenario

The retirement withdrawal calculator run on the values above, showing the full calculation path rather than only the answer.

Inputs

Account Balance:$500,000
Withdrawal Rate:4.00%
Expected Annual Return:7.00%
Life Expectancy:90

Calculation

1. Apply the withdrawal rate to the starting balance. → $20,000/year 2. Divide into monthly paycheques. → $1,666.67/month 3. Test how long the money lasts at the assumed growth rate. → Indefinitely

Result

Annual Withdrawal: $20,000

Interpretation

$20,000/yr ($1,666.67/mo) at 4.00% on $500,000.

Understanding Your Result

Your Result: Annual Withdrawal: $20,000

Typical range: The 4% rule survived every 30-year US retirement since 1926; higher rates work only with flexibility to cut back.

What This Means

The retirement paycheque your balance funds — and whether it outlasts the plan.

Why It Matters

$20,000/yr ($1,666.67/mo) at 4.00% on $500,000.

Professional Interpretation

$20,000/yr ($1,666.67/mo) at 4.00% on $500,000.

How this is calculated

The rate converts savings into yearly and monthly paycheques; the annuity-duration equation tests how long they last at the assumed growth.

What drives the result

Safe spending is governed by sequence as much as averages: the same 5% average return funds very different retirements depending on whether bad years arrive first or last. Lower initial withdrawals plus flexibility after down years add more safety than any product.

Recommendations

  • •Adjust withdrawals for inflation yearly — but skip the raise after down years.
  • •Keep the rate at or under 4% unless you have guaranteed income covering the basics.

Educational Content

Introduction

Spending savings safely is the mirror image of building them: a sustainable withdrawal must survive decades of inflation and market swings. Every figure on this page — monthly income, how long money lasts, the breakeven between claiming options — balances how much you take against how long it must keep growing.

Concept Explanation

Safe spending is governed by sequence as much as averages: the same 5% average return funds very different retirements depending on whether bad years arrive first or last. Lower initial withdrawals plus flexibility after down years add more safety than any product.

Applications

▸Converting a lump sum into a monthly paycheque with the 4% rule or a custom rate
▸Testing whether savings, Social Security and pensions cover the spending plan
▸Timing Social Security and pension claims for maximum lifetime income

Benefits

  • •Expresses sustainability as a concrete monthly number, not a vague warning
  • •Shows the trade-off between spending today and solvency at 90
  • •Compares guaranteed income against portfolio withdrawals side by side

Limitations

  • •Assumes smooth returns unless a shock scenario is modelled explicitly
  • •Uses fixed spending; real retirees flex travel, gifts and big purchases
  • •Ignores taxes, healthcare inflation and long-term-care shocks

Best Practices

  • •Cover essentials with guaranteed income (Social Security, pension, annuity) first
  • •Skip the inflation raise after any year the portfolio falls
  • •Keep 1–2 years of spending in cash so downturns never force stock sales

Common Misconceptions

Myth: 4% means withdrawing 4% of the balance every year.
Truth: The rule takes 4% in year one, then adjusts that dollar amount for inflation — the percentage floats with the market.
Myth: Delaying Social Security is always wrong if I need money now.
Truth: If savings can bridge the gap, each delayed year buys 8% more inflation-protected income for life.

Practical Tips

  • •Skip inflation raises after down years.
  • •Keep the rate ≤4% unless guaranteed income covers essentials.

Common Mistakes

Raising spending with every market peak.
Ratcheting locks in high withdrawals that later crashes cannot support.
Withdrawing a fixed percent of a falling balance.
Income then collapses exactly when stability matters most.

Assumptions

This calculator makes the following assumptions to provide estimates:

Year-one rate: The rate applies to the starting balance, then dollars inflation-adjust.
Smooth growth: Duration uses one fixed return.

Limitations

Be aware of these limitations when using this calculator:

Limitation: Assumes smooth returns unless a shock scenario is modelled explicitly
Limitation: Uses fixed spending; real retirees flex travel, gifts and big purchases
Limitation: Ignores taxes, healthcare inflation and long-term-care shocks

Frequently Asked Questions

Answers to common questions about this calculator.

How much can I withdraw yearly in retirement?
Balance times a safe rate — $500K at 4% funds $20K/year, inflation-adjusted.
Is 4% still safe?
For 30-year horizons with balanced portfolios, history says yes — with flexibility after down years.
Who uses the retirement withdrawal calculator?
It is used by savers planning their retirement, by advisers modelling retirement scenarios before clients commit, and by near-retirees stress-testing income, taxes and timing. It sits in the Withdrawals & Income group of the Retirement section of Atlascalcs.
How accurate is the retirement withdrawal calculator?
Every figure follows directly from the inputs using standard retirement mathematics, so it is accurate to the quality of the values you enter. Markets compound unevenly and tax rules change, so treat smooth projections as planning guides and re-run yearly with actual balances.
How accurate is the Retirement Withdrawal Calculator?
Every figure follows directly from your inputs using standard retirement mathematics, so accuracy depends on the quality of the return, inflation and spending assumptions you enter. Markets, taxes and life events will differ from any smooth projection.
Should I use nominal or real returns in the Retirement Withdrawal Calculator?
Enter nominal (before-inflation) returns — the page converts to real purchasing power internally wherever the retirement math needs it, and shows today’s-dollar equivalents alongside nominal figures.

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Related Guides

Deepen your understanding with these educational resources.

Glossary

Technical terms used in mortgage calculations explained in plain language.

Safe withdrawal rate
The starting withdrawal percentage (classically 4%) that historically sustained 30 years of inflation-adjusted spending.
Sequence-of-returns risk
The danger that poor returns early in retirement permanently impair the portfolio, even if long-run averages are fine.

Authoritative References

Trusted sources and standards referenced by this calculator.

Applicable Standards

Monthly compounding for accumulation; annual steps for drawdown schedulesReal (inflation-adjusted) returns used wherever purchasing power mattersRMD factors from the IRS Uniform Lifetime Table (2022+)Social Security factors from SSA early-reduction and delayed-credit formulasMoney rounded for display only; all calculations run at full precision

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Page Information

Last Updated:

2026-09-21

Version:

2.0.0

License:

Free to use for educational and professional purposes.