Model compound growth using Dave Ramsey's 12% average market return benchmark. Compare conservative and aggressive scenarios, review annual balances, and track contribution-to-growth ratios for retirement planning.
Add a starting balance such as a 401(k) rollover or current mutual fund value.
Dave Ramsey recommends investing 15% of household income for retirement.
Choose a long-term horizon (e.g., 20–35 years) to capture compound growth.
Override the 12% default. Enter a rate between 1% and 29% to model different mutual fund expectations. Select the "Custom rate" tab to use this value.
Learn more about Dave Ramsey's investment strategy and retirement planning from these authoritative sources:
Disclaimer: Past market performance does not guarantee future results. The 12% return figure is Dave Ramsey's estimate and may differ from other financial advisors' recommendations. Always consult a qualified financial advisor.
Dave Ramsey's claim that the stock market averages 12% returns is one of the most debated figures in personal finance. The number isn't fabricated — it's based on the S&P 500's long-term nominal average. But using it for retirement planning introduces several layers of optimism that can lead to serious shortfalls.
S&P 500 historical data (1928–2023, per NYU Stern / Damodaran):
Ramsey uses the arithmetic average, which overstates actual growth because it ignores the compounding effect of volatility (the "variance drain").
$600/month invested for 25 years at different return assumptions:
The difference between 12% and 7% is $712,000 — more than the entire investment at the realistic rate. Planning with 12% risks a retirement shortfall of 40-60%.
What Ramsey gets right: His core message — invest consistently, avoid debt, and let compound interest work for decades — is sound advice regardless of the exact return assumption. Most financial planners recommend using 7–8% (real) or 9–10% (nominal) for conservative planning, while keeping Ramsey's 12% as a best-case scenario.
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