ROI Calculator
What Is the ROI Calculator?
A return on investment calculator compares the gain or loss from an investment with its original cost. Use it to express performance as a percentage and compare investments on a common basis.
How to Use the ROI Calculator
- Enter the values requested by the calculator.
- Check the units and assumptions for each field.
- Select Calculate to generate the result.
- Change an input and calculate again if you want to compare scenarios.
Calculation Method
ROI = (Gain − Cost) / Cost × 100 when gain represents the final value; fees and cash-flow timing can change a real-world return.
Example
Example: enter the values relevant to your ROI Calculator scenario, calculate the result, and then change one input at a time to see how that specific variable affects the outcome.
Understanding the Result
The result is determined by the inputs required for ROI Calculator, the units used, and the assumptions built into its calculation. Review each field before comparing results.
Tips and Notes
For a useful comparison, keep units consistent and test more than one realistic scenario. When the result affects an important financial, health, legal, or technical decision, verify key assumptions with an appropriate authoritative source.