Seed Bead Size           Size in mm

6/0                                3.3
7/0                                2.9
8/0                                2.5
9/0                                2.2
10/0                              2.0
11/0                              1.8
Delica 11/0                    1.7
12/0                              1.7
13/0                              1.5
14/0                              1.4
15/0                              1.3
16/0                              1.2
18/0                              1.1
20/0                              1.0
22/0                              0.9