ROI Calculator
Calculate net gain, ROI and an annualized return from investment cost, ending value and income.
✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
Recent tools are remembered only on this device.
Planning estimate only. ROI is a simplified comparison of modeled gains with invested cost. It does not automatically account for timing, financing, taxes, risk or opportunity cost.
Net gain$20,000.00
ROI40.00%
Annualized return18.32%
Value + income$70,000
Why use this roi calculator?
Use this free roi calculator directly in your browser. There is no account to create and the result appears immediately.
How to use it
Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is ROI Calculator free?
Yes. The core tool is free to use without creating an account.
Do I need an account to use ROI Calculator?
No. You can use the core Toolbox workflow without signing up.
Does ROI Calculator work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.