How to Use This ROI Calculator
This ROI calculator computes return on investment, total gain or loss, annualized ROI, and investment multiple for any amount and time period. Enter the amount you originally invested and the total amount you received back (including the return of principal). Choose whether to enter a time period in years or select specific start and end dates. If the ROI is negative, the calculator clearly flags the loss. Use the Share button to save your scenario. For projecting future investment value, try our future value calculator.
How ROI Is Calculated
The ROI formula is:
ROI (%) = (Amount Returned − Amount Invested) / Amount Invested × 100
Example: You invest $10,000 and receive back $15,000. Gain = $5,000. ROI = $5,000 / $10,000 × 100 = 50%. The investment multiple is $15,000 / $10,000 = 1.50× — meaning you got back $1.50 for every $1 invested.
Annualized ROI formula
To compare investments held for different durations, annualize using:
Annualized ROI = (1 + ROI/100)^(1/years) − 1
A 50% ROI over 5 years annualizes to (1.50)^(1/5) − 1 = 8.45%/year. Over 10 years: (1.50)^(0.1) − 1 = 4.14%/year. Same total return, very different annualized performance.
Why Annualized ROI Matters
Total ROI alone can be misleading. A 200% ROI sounds impressive — but if it took 30 years, the annualized return is only 3.5%/year, which underperforms inflation. Annualizing ROI lets you compare:
- Investments held for different lengths of time
- A real estate deal vs. stock market returns
- A business investment vs. a CD or savings account
When evaluating any investment, always check both the total ROI (to understand the absolute gain) and the annualized ROI (to understand the per-year rate of wealth creation).
What Is a Good Return on Investment?
Context is everything. Here are common benchmarks for 2026:
- High-yield savings / CDs: 4–5% annualized — low risk, liquid
- US Treasury bonds (10-year): ~4.3% — essentially risk-free
- S&P 500 index (historical avg): ~10% nominal, ~7% inflation-adjusted
- Real estate (residential): 8–12% total returns historically (appreciation + rental income, before leverage)
- Small business: 15–30%+ target, but risk is substantially higher
A "good" ROI is one that adequately compensates for the risk taken. A 12% return on a guaranteed investment is excellent; a 12% return on a volatile startup is modest. Always compare against the risk-free rate (government bonds) and the opportunity cost of your next-best alternative.
ROI vs. Rate of Return vs. CAGR
These three terms are closely related but mean different things:
- ROI — total return as a percentage of cost; not time-adjusted. Useful for comparing profit relative to investment.
- Rate of Return (ROR) — typically annualized ROI. Many sources use "rate of return" and "annualized ROI" interchangeably.
- CAGR (Compound Annual Growth Rate) — the annualized rate assuming compounding, identical to Annualized ROI when calculated from start and end values. CAGR = (End Value / Start Value)^(1/years) − 1.
All three converge when you have a single investment, a start value, and an end value. Differences appear when there are intermediate cash flows (dividends, capital calls) — in which case the IRR (Internal Rate of Return) becomes the appropriate measure.
ROI in Real Estate, Stocks, and Business
ROI calculations vary by asset class — here is what to include in each:
- Stocks / ETFs: Amount invested = purchase price + commissions. Amount returned = sale proceeds + dividends received. Don't forget to account for taxes on gains and dividends.
- Real estate: Amount invested = down payment + closing costs + capital improvements. Amount returned = sale proceeds − selling costs + net rental income over the holding period. The cap rate calculator handles the rental income angle.
- Business investment: Amount invested = total capital contributed. Amount returned = distributions + sale proceeds. Be sure to include opportunity cost — the capital could have earned returns elsewhere.
- Marketing campaigns: Amount invested = total campaign spend. Amount returned = revenue attributed to the campaign. ROI benchmarks vary: email marketing typically achieves 3,600%+ ROI; paid search averages 200%; TV/display lower.
Limitations of ROI as a Metric
ROI is a powerful but incomplete measure. Key limitations to keep in mind:
- Ignores time value of money: A dollar today is worth more than a dollar 10 years from now. ROI treats them as equal — NPV (Net Present Value) is a more complete measure for long-horizon investments.
- Ignores risk: A 15% ROI on a junk bond is not comparable to 15% on an S&P 500 index fund. Risk-adjusted measures like the Sharpe ratio provide more context.
- Easy to manipulate: What you include (or exclude) in "Amount Invested" and "Amount Returned" can dramatically change the ROI figure. Always define terms clearly before comparing ROIs across projects.
- Ignores intermediate cash flows: If you received dividends, made additional contributions, or withdrew capital mid-investment, a simple ROI calculation will be inaccurate. Use IRR for such scenarios.
Financial Disclaimer
This calculator is for educational and planning purposes only and is not financial advice. Past investment returns do not guarantee future results. All investments carry risk, including the possible loss of principal. Consult a qualified financial advisor before making investment decisions.