Can ROI be negative?
Yes. A final value below the initial investment produces a negative gain and ROI.
ROI Calculator
Calculate investment gain or loss and return on investment percentage.
Calculations happen locally. We do not send your values to our server.
Example
An initial investment of 1,000 that reaches a final value of 1,200 has a gain of 200 and an ROI of 20%.
Calculation method
Gain or loss equals final value minus initial value. ROI divides that gain or loss by the positive initial investment and multiplies by 100.
Important notes
ROI alone does not account for elapsed time, cash flows, taxes, fees, risk, inflation, or opportunity cost.
Frequently asked questions
Does this annualize the return?
No. It calculates total simple ROI without considering the length of the investment period.
Can the initial investment be zero?
No. ROI would require division by zero, so the initial amount must be positive.