How to use a metal ring size tool
If you are on this page you want to find your ring size at the comfort of home. Of all the home methods a metal ring size tool is the easiest way to find your correct ring size. If in doubt it is best to visit a jeweler. Sometimes nonprofessional metal ring size tools can be a few mm off from the ring size, so also be aware of that.
1. Slide the rings on your finger. Find one that you feel like fits the best.
2. The ring should fit comfortably so that you could wear it and forget it is there but also not slide off easily.
3. When sliding the ring off it you should feel slight tension on the knuckle (first joint) but still be able to get it off by wiggling it off with your finger straight. Some fingers are thinner than others and some swell more. The biggest point is that it will not slide off and fit comfortably for wear.
Congratulations you found your ring size!
Keep in mind sometimes ring sizes change a bit with temperature and seasons. Also sizes on different hands can differ so make sure you are checking the right hand and finger you want to find the size for.