Simple ROI calculator
Estimate net gain and simple return on investment from investment and total proceeds.
Tool guide
How to use Simple ROI calculator
Estimate net gain and simple return on investment from investment and total proceeds.
- Enter the values and choose the operation or units. Read the supported limits beside the inputs; try the labelled sample to see an example.
- Plain decimal numbers only (dot decimal, no grouping or currency symbol). Calculations stay on your device. Simple ROI excludes annualization, compounding, tax and fees; it is not a forecast.
- Choose Calculate simple ROI. Review the result, then download the text result. Editing inputs invalidates old results.
- Calculations are local and unmetered. Inputs and results are not uploaded or saved to your account; leaving the page clears them. Downloaded files remain on your device.
Common questions
What are the limits of Simple ROI calculator?
Positive investment and nonnegative proceeds, each up to 10^12. Plain decimal numbers only (dot decimal, no grouping or currency symbol). Calculations stay on your device. Simple ROI excludes annualization, compounding, tax and fees; it is not a forecast.