I am interested in making some chainmaille jewelry. One bracelet only gives the number of jumprings needed in troy ounces. Since I'm just learning, I want to make it in silver plated rings, and not sterling silver. I intend to make my own rings and was wondering if there is a conversion chart to figure out the number of rings I need to make (not how many ounces). I assume it also depends on the gauge and diameter of the rings. I need to make 18 gauge, 6.5mm rings. I can't seem to find any resources for figuring this out. Any help is greatly appreciated! Thank you!