Net Profit (₹) Enter total gain minus total cost (use negative value for a loss)

Investment Cost (₹) Enter the total amount you invested (must be greater than zero)

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This calculator is for educational purposes only. It is not intended to provide financial advice. Consult a financial advisor for personalized guidance.

What Is Return on Investment

Return on Investment, or ROI, is a way to measure how much money you made or lost compared to what you put in. It is shown as a percentage. A positive ROI means you earned more than you spent. A negative ROI means you lost money. People use ROI to compare different investments and decide which one may be better. It is one of the most common tools to check if an investment was worth it.

How Return on Investment Is Calculated

Formula

The formula works by first finding the return ratio. This is done by dividing your net profit by the amount you invested. For example, if you earned ₹5,000 on a ₹20,000 investment, the ratio is 0.25. Then you multiply by 100 to turn it into a percentage, which gives 25%. If the net profit is negative, the ROI will also be negative, showing a loss. Both inputs must be in the same currency for the result to be correct.

Why Return on Investment Matters

Knowing your ROI helps you see if your money is working for you. It gives you a simple number to compare different choices. This may help you decide where to put your money next time.

Why Understanding ROI Is Important for Investment Decisions

When you skip checking ROI, you may not know if an investment actually helped you or hurt you. A high return in rupees might look good, but if you spent a very large amount to get it, the actual profit could be small. ROI shows the true picture. Without it, you may keep putting money into choices that are not giving good returns compared to other options.

For Comparing Investment Options

ROI is useful when you want to compare two or more investments. For example, one option may give you ₹10,000 profit on a ₹50,000 investment, and another may give ₹8,000 profit on a ₹25,000 investment. The first looks bigger in rupees, but the second has a higher ROI. This may help you see which option uses your money more wisely.

For Advanced Users

The basic ROI formula does not account for the time value of money. If one investment takes 1 year and another takes 5 years to give the same ROI, the shorter one is generally better. Advanced users may consider using annualized return or internal rate of return (IRR) to factor in time. These methods may give a more complete picture for long-term investments.

Return on Investment vs Annualized Return

ROI tells you the total return but not how long it took. Annualized return breaks the return down into a yearly rate. For example, a 50% ROI over 5 years is about 8.4% per year. People often confuse these two numbers. Using ROI alone may make a slow investment look as good as a fast one. Annualized return is generally better when comparing investments held for different lengths of time.