Free ROI Calculator
Calculate return on investment (ROI) instantly to evaluate the profitability of any investment, project, or business decision. Our free ROI calculator takes your initial cost, final value (or revenue), and time period to compute ROI percentage, annualized ROI, and net profit. ROI is one of the most widely used metrics in business and investing because it expresses profit as a percentage of cost — making it easy to compare investments of different sizes and durations. Whether you're analyzing a marketing campaign, evaluating real estate, reviewing stock performance, or justifying a business investment to stakeholders, ROI gives you a standardized measure of efficiency. An ROI of 20% means you earned $0.20 for every $1 invested — but always consider the time period: 20% over 10 years is very different from 20% in one year.
How to Use
- Enter your initial investment amount.
- Enter the final (or current) value of your investment.
- Set the time period in years.
- Optionally add any additional annual contributions.
- View your total ROI, annualized ROI, and profit/loss instantly.
- Compare your performance against market benchmarks.
FAQ
- How is ROI calculated?
- ROI is calculated as: ROI (%) = [(Final Value - Initial Cost) / Initial Cost] × 100. For example, if you invest $10,000 and it grows to $13,000, your ROI is [(13,000 - 10,000) / 10,000] × 100 = 30%. This tells you that you earned $0.30 for every $1 invested. The annualized ROI adjusts for the time period using the compound annual growth rate (CAGR) formula, making it possible to compare investments held for different durations.
- What is a good ROI?
- "Good" ROI depends entirely on the context, risk level, and time period. The US stock market has historically returned about 7–10% annually. Real estate often returns 8–12% including appreciation and rental income. Marketing campaigns often target 300–500% ROI (or a 3:1 to 5:1 return on ad spend). A startup investment might target 10–20x ROI over 5–10 years to compensate for high risk. Any positive ROI is technically profitable; the question is whether it's competitive compared to other uses of that capital.
- What does annualized ROI mean?
- Annualized ROI (also called CAGR — Compound Annual Growth Rate) normalizes the return to a per-year basis, making it easy to compare investments held for different periods. A 50% ROI over 10 years sounds better than a 30% ROI over 3 years, but the annualized rates tell a different story: 50% over 10 years = 4.1% annually, while 30% over 3 years = 9.1% annually. Annualized ROI is the correct metric for time-value comparisons.
- What are the limitations of ROI?
- ROI doesn't account for risk — a 15% ROI from a savings account and a 15% ROI from a startup investment are very different propositions. It also doesn't capture the time value of money beyond the annualization adjustment, opportunity costs, or qualitative factors like strategic value. For business investments, ROI also typically ignores the cost of capital. For comprehensive financial analysis, ROI should be used alongside other metrics like NPV (Net Present Value), IRR (Internal Rate of Return), and payback period.