ROI Calculator
Last updated: June 1, 2026Return on investment and annualized ROI.
ROI Calculator is a free online calculator to return on investment and annualized ROI. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.
How to use ROI Calculator
Work out your return on investment in seconds. Enter what you invested and what it's worth to see ROI percentage, net profit and annualized return over any holding period. Free and private. It runs entirely in your browser, so it's fast, private and free — no software to install.
- 1Enter your numbers.
- 2See the result update instantly.
- 3Adjust the inputs to compare scenarios.
Free to use
No watermarks and no forced sign-up. Free credits to get started.
Private by design
Runs in your browser — your files never leave your device.
Fast & simple
A clean interface, instant results, and it works on any device.
ROI Calculator — frequently asked questions
Is ROI Calculator free?
Yes. ROI Calculator is free to use — no watermarks and no forced sign-up. New visitors get free credits to start, and you can upgrade any time for more.
Is ROI Calculator safe and private?
ROI Calculator runs entirely in your browser. Your files never leave your device and nothing is uploaded to a server.
Do I need to create an account to use ROI Calculator?
No account is required. Open the tool and start right away.
Does ROI Calculator work on mobile?
Yes — it works in any modern browser on phones, tablets and desktops.
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