Return on Investment (ROI) Calculator

Interested in an investment for your business but not sure if it will be profitable? Try our free online ROI calculator.

The Return on Investment (ROI) is a key performance measure that evaluates the efficiency of an investment or compares the profitability of different investments. It’s expressed as a percentage and calculated by dividing the net profit from an investment by the cost of the investment. In essence, ROI indicates how much money is made compared to the amount invested, providing a direct and easily understandable measure of an investment’s profitability. By considering both the return and the cost of investment, ROI provides a comprehensive view of the financial effectiveness of an investment decision.

ROI is crucial because it helps investors, both individuals and businesses, make decisions about where to allocate their resources for the best return. By comparing the ROI from different investments, one can identify the most lucrative opportunities and make informed decisions about allocating capital. It’s particularly important in business contexts, where companies often have to choose between multiple potential investments or projects. By calculating the projected ROI for each option, decision-makers can identify and pursue the opportunities that will deliver the most value for the business. ROI is a versatile and powerful tool that supports effective investment decisions and promotes financial success.

How To Use Our Return on Investment (ROI) Calculator


Enter the Initial Value

The initial value (Vi) represents the starting point of your investment. This value is the total amount of capital initially invested or the cost of the investment. In the field labeled "Initial Value", enter the amount that was initially put into the investment.


Enter the Final Value

The final value (Vf) is the worth of your investment at the end of the investment period. This value should include not only the current market value of the investment but also any additional returns such as dividends or interest accrued over the investment period. In the field labeled "Final Value (including dividends and interest)", input the total value of the investment at the end of the period.


Calculate the ROI

Once you've input the initial and final values, click the "Calculate" button. The calculator will subtract the initial value from the final value, divide the result by the initial value, and then multiply by 100 to obtain the ROI as a percentage. The output will display your ROI, allowing you to understand the profitability of your investment.

Let's Calculate!

Return on Investment (ROI) Calculator

How Should You Interpret The Results?

The results from the Return on Investment (ROI) Calculator are displayed as a percentage, which represents the profitability or financial gain of an investment relative to its cost. Essentially, a positive ROI means that the earnings from an investment have exceeded the cost of the investment, indicating a profitable situation. For example, an ROI of 20% suggests that the investment has returned 20% more than its original cost. On the other hand, a negative ROI indicates that the costs of the investment have exceeded the returns, implying a loss on the investment.


When interpreting the results, it’s important to remember that ROI is a relative measure, and context is key. A higher ROI percentage implies a more profitable investment relative to its cost, making it appear more attractive. However, other factors such as the risk associated with the investment, the time horizon, and the investor’s personal financial goals and risk tolerance should also be considered when making investment decisions. For example, an investment with a high ROI but high risk might not be as desirable as one with a slightly lower ROI but less risk. Furthermore, when comparing ROI percentages from different investments, it’s essential to ensure that the time period for each investment is the same, to make the comparison fair and meaningful. By considering these aspects, investors can use ROI effectively as a tool for making informed investment decisions.