What do the “/0” numbers beside the seed beads mean?
Seed beads are sized in aughts, which are different than millimeters. No one seems to know exactly what an “aught” is but remember that the bead sizes are in inverse proportion to the size of the beads. A size 15 is very small, and size 6 is big. aught size – mm diameter 6/0 – 3.3 8/0 – 2.5 11/0 – 1.8 15/0 – 1.3 11/0 delica – 1.
