🏦 Retirement Withdrawal Calculator
Calculate how long your retirement savings will last under different withdrawal strategies. Compare the 4% Rule, Fixed Percentage, and Fixed Amount withdrawals with inflation adjustments and full amortization schedules.
What Is a Retirement Withdrawal Calculator?
A retirement withdrawal calculator helps you determine how long your retirement savings will last based on different withdrawal strategies. It simulates the impact of withdrawals on your portfolio over time, considering investment returns and inflation.
This calculator supports three common withdrawal strategies:
- 4% Rule: Withdraw 4% of your initial portfolio in year 1, then adjust for inflation each year. Based on the Trinity Study.
- Fixed Percentage: Withdraw a fixed percentage of your remaining portfolio balance each year.
- Fixed Amount: Withdraw a fixed dollar amount each year (optionally adjusted for inflation).
How Does the Retirement Withdrawal Calculator Work?
The calculator simulates your retirement portfolio year by year:
Where:
- Balancet = Portfolio balance at the end of year t
- r = Expected annual return (net of fees)
- Withdrawalt = Amount withdrawn in year t (depends on strategy)
The calculator runs until either the portfolio is depleted or the specified retirement period ends. It also compares all three strategies side-by-side so you can see which one best fits your needs.
Why Use This Retirement Withdrawal Calculator?
- Three Strategies: Compare the 4% rule, fixed percentage, and fixed amount withdrawals.
- Inflation Adjustment: See how inflation impacts your purchasing power over time.
- Full Schedule: View the complete withdrawal schedule year by year.
- Strategy Comparison: Instantly see which strategy lasts the longest.
- Free & Private: No registration, no data storage , all calculations run in your browser.
❓ Retirement Withdrawal Calculator FAQ
What is the 4% rule?
The 4% rule is a guideline suggesting that you can withdraw 4% of your retirement savings in the first year, then adjust that dollar amount for inflation each year, and have a high probability of not running out of money for at least 30 years. It's based on the Trinity Study's analysis of historical market returns.
What is the difference between fixed percentage and fixed amount withdrawals?
A fixed percentage withdrawal takes a percentage of your remaining portfolio balance each year , so your withdrawals fluctuate with your portfolio value. A fixed amount withdrawal takes the same dollar amount each year (or adjusted for inflation) , so your withdrawals are more predictable but may deplete your portfolio faster during market downturns.
What return rate should I use?
Historically, the S&P 500 has returned about 10% annually before inflation, or about 7% after inflation. A conservative estimate of 6-7% is commonly used for long-term planning. The calculator allows you to adjust this based on your risk tolerance and asset allocation.
Why does inflation matter in retirement?
Inflation reduces the purchasing power of your money over time. A dollar today will buy less in 20 years. This calculator adjusts your withdrawals and shows both nominal and inflation-adjusted values so you can see the real purchasing power of your retirement income.
What is sequence of returns risk?
Sequence of returns risk is the risk that poor investment returns occur early in retirement when you're withdrawing money. This can significantly shorten the lifespan of your portfolio because you're selling assets at low prices. The 4% rule was designed to account for this risk in most historical scenarios.
How accurate is this calculator?
This calculator provides accurate estimates based on standard financial formulas. However, actual investment returns, inflation, and market conditions vary. Use this as a planning tool and consult a financial advisor for personalized retirement advice.
Can I use this calculator for early retirement (FIRE)?
Yes! This calculator is useful for FIRE (Financial Independence, Retire Early) planning. Since early retirees often have longer retirement horizons, you may want to use a more conservative withdrawal rate (e.g., 3-3.5%) to ensure your savings last.
Is this calculator free to use?
Yes, this calculator is completely free to use. No registration or personal data storage is required. All calculations are performed in your browser.
What is the difference between nominal and real values?
Nominal values are in future dollars without adjusting for inflation. Real values are adjusted for inflation to show purchasing power in today's dollars. This calculator shows both so you can understand the true value of your retirement income.
What is the best withdrawal strategy?
There's no single "best" strategy , it depends on your goals, risk tolerance, and retirement timeline. The 4% rule is a popular starting point, but many retirees use a combination of strategies. This calculator helps you compare the trade-offs between consistency and longevity.