AUNTIE’S BEADS · EST. 2000
If you’re new to beading, seed bead sizing can feel backwards: within the same bead family, a larger /0 number generally means a smaller bead. Start with the size and shape specified in your pattern.
Read the size as a category
The /0 notation is called “aught.” It is a size designation, not a dependable beads-per-inch measurement. Shape and manufacturer matter: an 11/0 round seed bead and an 11/0 Delica are different shapes and dimensions.
Four familiar round-bead sizes
| Size | Approximate Miyuki round diameter | Relative comparison |
|---|---|---|
| 6/0 | 4.5 mm | |
| 8/0 | 3.0 mm | |
| 11/0 | 2.0 mm | |
| 15/0 | 1.5 mm |
Illustrative relative diameters, enlarged for comparison; not actual size on screen. These are approximate Miyuki round-bead reference values. Shape, finish, production lot, and measurement method can affect dimensions; check your product and pattern.
Which size should you start with?
Choose a beginner pattern first, then buy its specified beads. Larger 6/0 or 8/0 rounds can be easier to handle. An 11/0 round is a useful starting point for many beadwork designs; tiny 15/0 beads are often used for small details and edging.
If a pattern calls for Delicas, do not assume round seed beads with the same /0 number will give the same result. For shape comparisons and help choosing supplies, visit our Seed Bead Design Guide.
Browse our seed beads and check the listed shape and size before ordering.