ROI Calculator — free online tool
You put money into something — an ad campaign, a course, a bit of stock — and later you wonder: was it actually worth it? Doing the math in your head is easy to get wrong, especially when you want to compare two things. We added a free tool that does it for you — ROI Calculator — right in your browser.
What it does
You type in what you spent and what you got back, and it shows your return on investment as a clear percentage. It also gives you the net profit (the plain money you made) and an annualized ROI, so you can fairly compare a quick win with something that took a whole year.
Nothing leaves your device
Everything runs in your browser. Your numbers stay on your screen — nothing is uploaded, nothing is saved on a server, nothing is shared. Close the tab and it's gone.
How to use it
- Open ROI Calculator.
- Enter how much you invested and how much you got back (and the time period, if you want the yearly figure).
- Read your ROI, net profit and annualized ROI, and use the numbers to decide.
It's free with no limit. There are more small tools on the Apps page.