ROI Calculator

Evaluate investment efficiency:

Step 1: Enter the Amount Invested.

Step 2: Enter the Amount Returned.

Step 3: Optionally enter the Investment Duration to see annualized ROI.

Step 4: Click Calculate.

The formula for Return on Investment (ROI) quantifies the percentage gained or lost on an investment:

ROI = [(Gain from Investment - Cost of Investment) / Cost of Investment] × 100

For example, if you invest $50,000 into a project and your total profit reaches $70,000, your calculation would be: ($70,000 - $50,000) / $50,000 = 0.40 or 40%

To overcome the lack of a time factor in this basic equation, the Annualized ROI is calculated using the length of the investment:

Annualized ROI = [(Returned Amount / Initial Investment)^(1 / Years)] - 1

This provides an equivalent yearly growth rate that makes comparing different opportunities of varying lengths much more accurate.

Return on Investment (ROI) is a widely used financial metric to evaluate the anticipated profitability of an investment. It measures the net return generated from an investment relative to its initial cost, making it an essential baseline before pursuing serious financial commitments. ROI can be applied broadly—from stocks and real estate to business ventures.

However, a core limitation of basic ROI is its lack of an inherent timeframe. For instance, an impressive 500% ROI on an asset becomes much less appealing if it takes 50 years to realize, compared to a 50% ROI generated over a few months. This variability, alongside the fact that investors often define "costs" or "gains" differently (such as whether they include taxes or insurance), highlights the importance of using ROI with care.

To adequately account for time and provide a more meaningful point of comparison, it's recommended to use the Annualized ROI, which scales the return into a standardized yearly rate.