Bead Conversions

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