Clear answers to common questions about return on investment (ROI), annualized returns, and how to interpret investment performance.
What constitutes a "good" ROI depends on the type of investment, your risk tolerance, and market conditions. In the stock market, an annualized return of 7–10% has been the long-term historical average (nominal, before inflation). For real estate, investors often target 8–12% annualized. For bonds or savings accounts, 2–5% may be considered good. Always compare against a relevant benchmark and factor in inflation and taxes.
Simple ROI tells you the total percentage return over the entire holding period. Annualized ROI (also called CAGR — Compound Annual Growth Rate) normalizes that return into an average annual rate, making it easy to compare investments held for different lengths of time. For example, a 50% total ROI over 5 years equals roughly an 8.45% annualized ROI, while the same 50% total ROI over 1 year is obviously far better — 50% annualized. The annualized ROI reveals the true, time-adjusted performance.
When you make regular contributions (monthly, quarterly, or annually), your return can't be calculated with the simple ROI formula alone — because you're steadily adding more capital over time. Instead, you project the future value using the compound interest formula that accounts for periodic contributions: FV = P(1+r)^n + PMT((1+r)^n − 1)/r, where P is initial investment, r is the periodic rate, n is the number of periods, and PMT is the recurring contribution. Then compare the final projected value against the total amount you contributed to find your overall ROI.
Yes. A negative ROI means you lost money — the final value of your investment is less than what you put in. For example, investing $1,000 and ending with $800 gives an ROI of −20%. Negative ROI is common with volatile assets, poorly timed trades, or investments in declining industries.
Standard ROI (nominal ROI) does not account for inflation. To measure your true increase in purchasing power, subtract the inflation rate from your ROI to get the "real" ROI. For example, if your nominal annualized ROI is 8% and inflation runs at 3%, your real annualized ROI is approximately 5%.
Profit is an absolute dollar amount (Final Value − Initial Investment), while ROI is a percentage that relates that profit back to the amount you originally invested. ROI is generally more useful for comparing different investment opportunities because it normalizes for size — a $500 profit on a $1,000 investment (50% ROI) is far more efficient than a $500 profit on a $10,000 investment (5% ROI).
The projection calculator assumes returns compound at a constant annual rate, with contributions made at the start of each period. In reality, returns fluctuate year to year and contributions may be timed differently. The tool also does not account for taxes, fees, or inflation — it provides a simplified estimate to help with goal-setting and planning, not a guaranteed outcome.