Chart: Jump Ring Sizes and Gauges - Art Jewelry Magazine. Tatted Jewelry Patterns at Tat's All. Unsure of your sizes for bracelets and necklaces?
Here is a table that will help you. I hope you don't find you need one for earrings! LOL These numbers have been gathered over the years; I wrote them in my Beader's Companion because I kept losing them. I hope you find them useful. Seed Bead Sizes and Hole Sizes.