Return on Investment Calculator
Result
Return on Investment Calculator Return on Investment (ROI) calculates percentage profit from an investment. Formula: ROI = (Final Value − Initial Cost) ÷ Initial Cost × 100. Enter monetary values in your local currency. Enter interest rates as plain numbe — free online calculator.
Formula
- Calculate return on investment (ROI) from an initial cost and final value. ROI measures percentage gain or loss relative to the initial investment.
- Use monetary amounts, rates and time periods exactly as labeled; the result reflects the assumptions entered on this page.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Return on Investment
If an investment costs 1,000 and its final value is 1,250, ROI = (1,250 − 1,000) ÷ 1,000 × 100 = 25%.
Sample result: Calculating…
Frequently asked questions
What does the Return on Investment calculate?
ROI is not the same as internal rate of return (IRR). ROI compares gain with initial cost and does not account for the timing of multiple cash flows.
Which values should I enter?
Enter the values requested by the calculator using the labels and units shown on the page.
What formula does this calculator use?
The calculator uses the following relationship: ROI = (Final value − Initial cost) ÷ Initial cost × 100.
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.