GMROI Calculator — free online
If you run a shop or sell products, you've probably wondered whether the money tied up in your stock is actually earning its keep. There's a number for that, called GMROI, but the math is fiddly to do by hand. We added a free tool that does it for you — GMROI Calculator — right in your browser.
What it does
You type in your gross profit and your average inventory cost, and it gives you your gross margin return on inventory. That's it. It tells you how much profit each dollar of stock brings back, so you can see whether a product line is pulling its weight.
Nothing leaves your device
The whole thing runs in your browser. Your numbers stay on your screen — nothing is uploaded, nothing is saved on a server, nothing is shared. When you close the tab, it's gone.
How to use it
- Open GMROI Calculator.
- Enter your gross profit and your average inventory cost.
- Read your GMROI result and use it to compare your products.
It's free with no limit. There are more small tools on the Apps page.