Bead Conversion Table

If you’re like me, I’m not always sure what is the best bead to use on a hook. When I started tying flies, I used to guess which bead to use. Then I purchased fly tying books that included pattern sheets with the bead size in them. Sizes were 1/8″, 5/64″, 5/32″ etc. Next I had to get used to 1.5 mm, 2.0 mm, 3.0 mm. I still have a few packages that are Non-metric so I use this Bead Conversion Table as a quick reference guide.

I hope it helps you!

 

 Bead Conversion Table

Metric Diameter

Inch Diameter

Hook Size

1.5 mm

1/16”

18 – 22

2.0 mm

5/64”

16 – 20

2.3 mm or 2.4 mm

3/32”

14 – 18

2.6 mm or 2.8

7/64”

12 – 16

3.0 mm or 3.2

1/8”

10 – 14

4.0 mm

5/32”

8 – 12

4.5 mm

3/16”

6 – 10

5.0 mm

1/4″

4 – 8

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