ROI Calculator

Find the percent return on an investment, and the annualized return if you know how long you held it.

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Amounts in dollars.
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ROI
Gain or loss
Annualized ROI
Multiple
Work

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How to Calculate ROI

ROI = (amount returned − amount invested) ÷ amount invested × 100
Annualized ROI = (returned ÷ invested)^(1 ÷ years) − 1

Worked Example

Tips

Include all costs (fees, commissions, repairs) in the amount invested and all income (dividends, rent) in the amount returned. Plain ROI ignores time, which is why the annualized figure is better for comparing investments held for different periods.