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Technical Information

Whether you're looking for Seed Bead Size Comparisons, Wire Gauges or Standard Jewellery Dimensions, you'll find them here. We will be adding new Technical Info to this page regularly!

Seed Bead Size Chart:

Bead Size

Diameter

Beads
per cm

Beads
per Inch

Hole Size

Max Wire
Gauge

15

1.3mm

10

25

0.50mm

24ga

11

1.8mm

8

20

0.64mm

22ga

9

2.2mm

6

15

1.00mm

18ga

8

2.5mm

5

13

1.2mm

18ga

6

3.3mm

4

10

1.7mm

14ga

Please note sizes may differ slightly due to brand and batch variations.  

Wire Gauge Comparison Chart:

Gauge

Diameter

 Diameter

Gauge

Diameter

Diameter

14

1.63mm

0.064"

24

0.51mm

0.020"

16

1.29mm

0.051"

26

0.41mm

0.016"

18

1.02mm

0.040"

28

0.32mm

0.013"

20

0.81mm

0.032"

30

0.26mm

0.010"

22

0.64mm

0.025"

32

0.20mm

0.008"

Please note sizes may differ slightly due to brand and batch variations.

 

Millimeters to Inches:

Millimeter

Inch

Inch

Millimeter

1mm

1/32

1/32

0.8

2mm

1/16

1/16

1.6

3mm

1/8

5/32

3.9

4mm

5/32

7/32

5.6

6mm

1/4

1/4

6.4

8mm

5/16

13/32

10.3

10mm

3/8

17/32

13.5

12mm

15/32

5/8

15.9

14mm

9/16

23/32

18.3

16mm

5/8

13/16

20.6

18mm

23/32

7/8

22.2

20mm

13/16

1

25.4

Please note conversions are rounded slightly and actual measurements may vary.