📈 ROI Calculator
Calculate return on investment with annualized returns.
What is this tool?
The ROI Calculator is a free online tool that calculates the return on investment (ROI) for any investment. Whether you are evaluating a stock purchase, a real estate deal, a business investment, or a marketing campaign, ROI tells you how much profit you made relative to the amount invested. Return on Investment (ROI) is one of the most common financial metrics used to evaluate the profitability of an investment. It is expressed as a percentage and calculated as: ROI = (Final Value - Initial Investment) / Initial Investment × 100. For example, if you invest $1,000 and it grows to $1,500, your ROI is 50%. However, simple ROI does not account for the time the money was invested, which is why this calculator also computes the annualized return. Annualized ROI (also called Compound Annual Growth Rate, or CAGR) shows the average yearly return, making it possible to compare investments held for different lengths of time. For instance, a 50% return over 5 years is less impressive than a 50% return over 1 year. The annualized return reveals the true performance. This calculator handles both simple and annualized ROI, giving you a complete picture of investment performance. All calculations run locally in your browser.How it works
The calculator uses two main formulas. Simple ROI = (Final Value - Initial Investment) / Initial Investment × 100. This gives the total percentage return over the entire investment period. For annualized ROI (CAGR), the formula accounts for the holding period: Annualized ROI = (Final Value / Initial Investment)^(1 / Years) - 1, then multiplied by 100 for a percentage. This formula assumes the return is compounded annually. For example, $1,000 growing to $1,500 over 3 years gives an annualized ROI of (1500/1000)^(1/3) - 1 = 14.47% per year. The calculator also computes the total profit (Final Value - Initial Investment) and the total return multiplier (Final Value / Initial Investment). If you enter additional contributions or withdrawals during the holding period, the calculator adjusts the effective initial investment accordingly using a simplified internal rate of return approach. The results update instantly as you change any input.How to use
- Enter the initial investment amount.
- Enter the final value of the investment.
- Enter the holding period in years (and months if needed).
- Click Calculate to see simple and annualized ROI.
- Compare with other investments using annualized returns.
Frequently Asked Questions
Frequently Asked Questions
What is a good ROI?
What counts as a good ROI depends on the investment type and risk. Historically, the stock market averages about 7-10% annual returns after inflation. Real estate typically returns 8-12% annually. Safe investments like savings accounts may return 1-3%. Higher potential returns usually come with higher risk.
What is the difference between simple ROI and annualized ROI?
Simple ROI gives the total percentage return over the entire period. Annualized ROI (CAGR) shows the average yearly return. Annualized ROI is better for comparing investments held for different periods, because it normalizes for time.
Does this calculator account for inflation?
The basic calculation does not adjust for inflation. To find your real return (purchasing power adjusted), subtract the inflation rate from the annualized ROI. For example, if your investment returned 8% and inflation was 3%, your real return is about 5%.
Can I use this for real estate investments?
Yes. Enter the purchase price as the initial investment and the current or sale value as the final value. For more accurate real estate ROI, you should also factor in rental income, maintenance costs, property taxes, and transaction costs.
Tips & Advice
Always compare investments using annualized returns (CAGR), not total returns, because time matters enormously. A 100% return over 1 year is far better than a 100% return over 10 years. When evaluating investment performance, also consider risk — higher returns usually mean higher volatility and chance of loss. The stock market's long-term average is about 10% nominal (7% after inflation), so any investment consistently beating that deserves scrutiny. For real estate, remember to include all costs (maintenance, taxes, transaction fees, vacancy) not just purchase and sale prices. Taxes also reduce your effective return: capital gains taxes apply to profits, and the rate depends on how long you held the investment.