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ROI Calculator (Return on Investment)

Calculate return on investment as a percentage, plus the net gain or loss, from the amount invested and the final value.

Net return
$500.00
ROI
50%

How it works

Return on investment measures the gain relative to what you put in. The net return is the final value minus the initial investment, and ROI is that net return divided by the initial investment, times 100: ROI % = ((final value − initial investment) ÷ initial investment) × 100.

A positive ROI means a gain, a negative ROI means a loss, and 0% means you broke even. The initial investment must be greater than zero — you can't divide a return by a zero cost basis.

FAQ

Does this ROI account for how long the investment was held?

No — plain ROI is a single total-return figure regardless of time. A 50% ROI over one year is very different from 50% over ten years. To compare investments held for different lengths of time, use the CAGR Calculator, which annualizes the growth rate.

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