Bead Library: Beading Resources

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Bead Conversions | Beading Resources

Bead Conversions

By Harlequin Beads & Jewelry

Approximate Number of Beads per Gram

Bead Type Beads per Gram
Miyuki Delicas Size 11
Toho Antiques Size 11
200
Miyuki Delicas Size 8 30
Czech and Japanese Size 11 seed beads 120
Czech and Japanese Size 14 or 15 seed beads 250
Czech and Japanese Size 6 (called Pony Beads) 18
Please note: Different colors and finishes vary widely in weight, these counts are approximate and will vary

Approximate Number of Beads per Tube

Bead Type Grams per tube Tube Size Bead Count
Matsuno Size 11 20.0 gm tube 2 x 7/8 in 3500
Delicas Size 11 10.0 gram tube 1-5/8 x 7/8 in 2000
Delicas Size 11 10.0 gram tube 2 x 3/4 in 2000
Delicas Size 11 5.0 gram tube 1-5/8 x 1/2 in 1000
Delicas Size 8 5.0 gram tube 1-5/8 x 1/2 in 150
Toho Size 6 10.0 gram tube 1-5/8 x 7/8 in 170
Toho Size 6 5.0 gram tube 1-5/8 x 1/2 in 85

Suggested Needle Size for Seed Beads

Needle Size Bead Size
Size 10 Matsuno and Delica Beads Size 11, Czech Seed Beads Size 11
Size 12 Matsuno and Delica Beads Size 11, Czech Seed Beads Size 11
Size 13 Toho Size 15, Czech Seed Beads Size 13 and larger
Size 15 Seed Beads Size 14 and smaller
As you can see, the larger the size the smaller the needle. Sharps Needles are the same sizes but are shorter in length, useful for intricate weaving.

Converting Bead Sizes From Millimeters to Inches

Bead Sizes in millimeters = Bead Sizes in inches
2 millimeters = 0.079 inches
3 millimeters = 0.118 inches
4 millimeters = 0.157 inches
6 millimeters = 0.236 inches
8 millimeters = 0.315 inches
10 millimeters = 0.394 inches

Beads per Inch conversion list

Bead Sizes in millimeters = Number of Beads per inch
2 millimeter = 12.5 beads
3 millimeter = 8.25 beads
4 millimeter = 6.25 beads
5 millimeter = 5.12 beads
6 millimeter = 4.25 beads
7 millimeter = 3.56 beads
8 millimeter = 3.12 beads
9 millimeter = 2.81 beads
10 millimeter = 2.50 beads

All article text and photos Harlequin Beads & Jewelry unless otherwise noted.
Text and photos may not be used without permession from Harlequin Beads & Jewelry.

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In Harlequin's bead library you will find information on the history of beads, how beads are made and how beads have been used throughout the world.

Many articles include a bibliography to provide you with additional resources. Many of the beading books referenced are available at your local library.

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If there's a beading topic that you'd like to know more about, or you have ideas for our beading library - we'd love to hear from you. Email us your topic or idea and we'll pass your suggestions along to our writers.

If you've written a beading article yourself that you feel would be a valuable addition to our bead library, we welcome your email, as well.

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Harlequin Beads and Jewelry specializes in Swarovski crystal, pendants and pearls, Czech glass and seed, Japanese seed and gemstone beads, plus a full selection of stringing supplies and jewelry findings.