Formula and calculation method
ROI = (proceeds − investment cost) / investment cost × 100.
Use consistent units for all comparable inputs. The displayed result is rounded; arithmetic is performed with the full available numeric precision. Check your source measurements before relying on the result.
How to use roi calculator
- Set Total investment cost. The example below uses 10000.
- Set Final proceeds. The example below uses 12000.
- Select Calculate to update the result. Reset restores the illustrated inputs. Copy, print or download your own result if you need a record.
Worked example
Example inputs
- Total investment cost
- 10000
- Final proceeds
- 12000
- Net gain
- 2000
- Return on investment (%)
- 20
Factors affecting your result
Use consistent units for all comparable inputs. The displayed result is rounded; arithmetic is performed with the full available numeric precision. Check your source measurements before relying on the result.
Changing total investment cost changes the scenario being evaluated. Adjust one input at a time when comparing results, keep a copy of the assumptions, and compare values using the same unit and period. A precise arithmetic result does not make an uncertain assumption precise.
Frequently asked questions
How does the roi calculator work?
ROI = (proceeds − investment cost) / investment cost × 100.
What inputs does ROI Calculator need?
Enter total investment cost, final proceeds. Choose values that correspond to the same situation and measurement convention.
How should I interpret the roi calculator result?
Use consistent units for all comparable inputs. The displayed result is rounded; arithmetic is performed with the full available numeric precision. Check your source measurements before relying on the result.
Are my roi calculator inputs uploaded?
No. The calculation runs in this browser. Favorites, recent tool names, theme and formatting preferences may be saved locally, but calculation inputs are not sent to a calculation server or stored by this website. Shared links do not include entered values.
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