What Is the Average ROI of the S&P 500 Over 10 Years?
The Short Answer
The S&P 500 has averaged about 10-12% annual returns over most 10-year periods. After inflation, real returns average about 7-8%.
The Detailed Breakdown
Based on historical S&P 500 total returns (including dividends) from 1926 to present.
| Calculation | Value | Assumptions |
|---|---|---|
| $10K Nominal Growth | $27,100 | 10.5% avg annual return, 10 years |
| $10K Real Growth (Inflation-Adj) | $20,100 | 7.5% real return after 3% inflation |
| Worst 10-Year Return | -1%/yr (2000-2009) | Dot-com crash + Great Recession |
Key Assumptions
- S&P 500 historical average ~10.5% nominal annual return.
- Includes dividends reinvested.
- 3% average inflation rate.
- Past performance doesn't guarantee future results.
Adjust for Your Situation
The S&P 500 averages ~10.5% annually, making it a strong long-term wealth builder.
Use the Free CalculatorWhat Affects This Result
Entry Timing
Investing at market peaks can mean lower 10-year returns.
Dividends
Reinvested dividends account for ~40% of total S&P 500 returns.
Fees
A 1% annual fee compounds to 10%+ loss over 10 years.