Free ROI Calculator
Calculate investment gain and return on investment percentage.
ROI Calculator
Enter a value to begin.
How to use this roi calculator
- Enter the starting cost and ending value.
- Check the inputs and preview, then use the primary action.
- Download, copy or use the result shown by the tool.
How the result is calculated
ROI divides gain by the initial investment and expresses the result as a percentage.
All calculation and transformation work happens in this browser tab. No entered value is sent to an Noler Tools application server.
Important limitations
Results are provided for convenience and should be checked independently before an important decision. A format or checksum result never authenticates an identity, document, account, licence, vehicle or registration.
Frequently asked questions
Is this roi calculator free?
Yes. It is free to use and does not require an account.
Does Noler Tools save my input?
No. The input and result remain in temporary browser memory and are not uploaded or saved by this site.