Inflation-adjusted retirement planning reveals a crucial truth: the number in your account isn't what matters — purchasing power is. This simulator tracks both your nominal portfolio balance (what the statement shows) and your real purchasing power (what that money actually buys in today's dollars), showing the true retirement picture over your entire accumulation and drawdown phases.
Retirement Parameters
In today's dollars — will be inflation-adjusted at retirement
Nominal vs Real Portfolio Value Over Time
| Year | Age | Phase | Nominal Balance | Real Balance |
|---|
How to Use the Inflation-Adjusted Retirement Simulator
Imagine planning for a $60,000/year retirement starting 30 years from now. With 3% annual inflation, you'll actually need $145,000/year in nominal dollars to buy what $60,000 buys today. Most retirement calculators hide this by showing only nominal values. This simulator exposes the full picture: both what your account will say and what that money will actually buy.
Step 1: Set Your Age Parameters
Enter your current age and set the retirement age slider. The gap between them is your accumulation phase — typically the most impactful period for building wealth. Set life expectancy to model how long your retirement portfolio needs to last. The difference between retirement age and life expectancy is your drawdown phase. Planning through age 90-95 provides a safety margin against longevity risk.
Step 2: Enter Savings and Contribution Details
Current savings is your starting portfolio today. Monthly contribution is what you're actively saving each month — this has a powerful compounding effect over long accumulation periods. For annual retirement spending, enter the amount in today's dollars (what you'd need to live on today). The simulator automatically inflation-adjusts this figure to reflect what it will actually cost by the time you retire.
Step 3: Set Return and Inflation Rates
Pre-retirement return reflects your portfolio's expected growth rate while you're still working — most people hold more equities here, so 7-8% is reasonable. Post-retirement return is lower because most retirees shift to more conservative allocations (bonds, annuities, stable value) to reduce sequence-of-returns risk. Set inflation rate based on your spending assumptions: 3% for general expenses, 4% if healthcare is a major budget item.
Step 4: Read the Nominal vs Real Chart
The chart shows two lines: the dashed amber line is your nominal portfolio balance (what the account statement says), and the solid teal line is your real purchasing power (adjusted for cumulative inflation). The gap between them widens over time — this is inflation eroding purchasing power. Notice how the real line peaks at retirement and declines more steeply than nominal; this is the combined effect of withdrawals and inflation on actual buying power.
Step 5: Use the Purchasing Power Callout
The callout box shows you exactly how much your $60,000 (or whatever you set) in today's dollars will cost in nominal terms in year 1 of retirement. This is critical for setting realistic withdrawal targets. The year-by-year table shows both nominal withdrawal amounts and their real equivalents — letting you see your actual standard of living trajectory across all retirement years.
FAQ
Is this inflation-adjusted retirement simulator free?
Yes, completely free with no signup required. All projections run locally in your browser — your data never leaves your device.
What is the difference between nominal and real retirement value?
Nominal value is the dollar number in your account — what the statement says. Real value is what that money actually buys, adjusted for inflation. If you have $1,000,000 at retirement but inflation averaged 3% for 20 years, your real purchasing power is only about $554,000 in today's dollars.
Why does my real purchasing power decline even if my portfolio grows?
If your portfolio grows at 5% but inflation runs at 3%, your real return is only about 2%. Your account balance grows in nominal terms, but each dollar buys less and less. In retirement, if you're withdrawing at a higher rate than your real return, your real purchasing power will steadily decline over time.
What inflation rate should I use for retirement planning?
The Federal Reserve targets 2% inflation. Long-run historical US inflation averages about 3%. Healthcare inflation historically runs 4-6%. If your retirement spending is heavily weighted toward healthcare, a 3.5-4% inflation assumption is more conservative and realistic. Use 3% as a baseline; stress test at 4%.
What is a 'purchasing power callout' and why does it matter?
The purchasing power callout shows you that your planned $60,000/year spending in today's dollars will require much more in nominal dollars by the time you retire and in later retirement years. Understanding this helps you set realistic withdrawal targets that maintain your standard of living throughout retirement.
What's the difference between pre-retirement and post-retirement return rates?
Pre-retirement, most people can tolerate higher equity exposure (7-10% expected return) since time horizons are long. Post-retirement, many shift to a more conservative allocation (bonds, annuities) as they can't recover from sequence-of-returns risk. A typical shift is from 7-8% pre-retirement to 5-6% post-retirement as the portfolio de-risks.
How does this simulator differ from a regular retirement calculator?
Most retirement calculators show only nominal values — the dollar numbers in your account. This simulator shows both nominal and real values simultaneously, with the dual-line chart making it immediately clear how inflation erodes purchasing power over time. The year-by-year table shows both nominal and real withdrawal equivalents.