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Bead Size Chart

Inches to Millimeters
InchesMillimeters
1/16 in.1.5mm
1/8 in.3mm
1/4 in6mm
3/8 in9mm
1/2 in12mm
5/8 in15mm
3/4 in18.5mm
7/8 in22mm
1 in25mm

JewelryResource
JewelryResource
Remember that this is a close approximation. Screen resolution and monitor size will affect how you view the chart.

How many beads per inch

Beads Per Inch
Bead SizePer Inch7"16"24"32"36"
3mm8.2557132200265288
4mm6.2543100150200225
5mm5.003582124160180
6mm4.252867100132153
7mm3.50245785114126
8mm3.25225075100112
10mm2.501840608090
12mm2.001533506672
14mm1.751329435663
16mm1.501125385054
18mm1.251023344550
20mm1.20820293843

Remember to allow for the length of your clasp. If you use spacer beads or mix sizes, this chart may not be accurate.

Seed Bead Sizing

Seed beads are sized in aughts, which are different than millimeters. The most popular school of thought of the sizing of seed beads states that the size (6/0) refers to the number of seed beads per inch (6 beads per inch). Another sizing theory is that the size is based on the rod used to make the beads. The larger the number, the smaller the bead (20 is small, 3 is large).

Seed Bead Sizes
Aught Sizemm diameterbeads per inch
6/03.310
8/02.513
9/02.215
10/02.016
11/01.820
13/01.527
14/01.424
15/01.325
delica1.820


Birthstone Chart

Birth Month Modern Traditional Mystical
JanuaryGarnetGarnetEmerald
FebruaryAmethystAmethystBloostone
MarchAquamarine, BloodstoneBloodstoneJade
AprilDiamondDiamondOpal
MayEmeraldEmeraldSapphire
JunePearl, MoonstoneAlexandriteMoonstone
JulyRubyRubyRuby
AugustPeridotSardonyxDiamond
SeptemberSapphireSapphireAgate
OctoberOpal, TourmalineTourmalineJasper
NovemberYellow Topaz, CitrineCitrinePearl
DecemberTurquoise, Blue Zircon, TanzaniteZircon, Lapis LazuliOnyx


Thread, Cord and Wire.

Silk Bead Cord - is used for beads with smaller holes such as freshwater pearls and beads under 5mm. You can add a designer look by using our Tri-Cord knotter, and placing knots on either side of the pearl. Wide spectrum of colors.

Nylon Bead Cord - is used as an all purpose bead cord. You can use Beeswax to coat the cord to keep it from fraying and tangling when it is repeatedly threaded through metal beads with sharp edges. Wide spectrum of colors.

Using light colors against a dark bead will lighten that bead color... Dark color cord will darken a light bead. Example: White cord with Garnet bead will add to the luminosity of the bead.

Tiger Tail - is a commonly used stringing material, and does not require a needle.

Beadalon - is our favorite stringing material. Unlike Tiger Tail which can sometimes kink, Beadalon wire remains soft and pliable, even when using the smaller beads. Beadalon is a multi-strand braided stainless steel wire with a nylon coating.

C-Thru Translucent Cord - is perfect for stringing Austrian Crystals, or any light colored bead when you don't want the cord to be visible.

Stretch Magic - is a flexible clear elastic cord. It is often used for slip-on crystal bracelets, and is a beader's favorite as it only requires a knot to finish.

Memory Wire - is a pre-coiled stainless steel wire that retains it shape. Very popular for wine charm markers and bracelets.

Rattail - is a round, satin-like cord, often used to show off one large pendant or centerpiece as it's beautiful colors beg to be seen.

Leather Cord - is always a popular stringing material as there is no finishing required. Simply add a pendant or centerpiece, tie a bow and go.