| BEAD SIZE |
16 INCHES |
18 INCHES |
24 INCHES |
| 2mm |
200 |
225 |
300 |
| 3mm |
132 |
144 |
200 |
| 4mm |
100 |
112 |
153 |
| 5mm |
82 |
90 |
124 |
| 6mm |
68 |
76 |
100 |
| 8mm |
50 |
56 |
76 |
| 10mm |
40 |
45 |
61 |
It's pretty easy to calculate the number of beads needed for a length of finished strand, as follows:
- One inch = 25.4mm
- Multiply 25.4 by the number of inches of beads (excluding clasp) in the finished strand. For example, the strand will be 16". 16" x 25.4mm = 406.4 mm
- Divide the total number of millimeters in the final length (in this case, 406.4mm), by the diameter of the beads to be used (let's use 4mm), and the result will be number of beads. For example; 406.4mm(16") divided by 4mm= 101.6 beads.
Below is a quick guide to the number of beads of a given size needed for common strand lengths. The numbers have been rounded up for the 16" through 32" lengths, so that instead of 101.64 mm beads for the finished 16" strand, the figure is shown as 102 beads.
|
BEADS PER INCH |
| Bead Size |
1" |
4" |
16" |
20" |
24" |
28" |
| 3mm |
8.46 |
33.80 |
135 |
169 |
203 |
237 |
| 4mm |
6.35 |
25.40 |
102 |
127 |
152 |
178 |
| 5mm |
5.08 |
20.32 |
81 |
102 |
122 |
142 |
| 6mm |
4.23 |
16.90 |
68 |
85 |
102 |
119 |
| 7mm |
3.62 |
14.40 |
58 |
73 |
87 |
102 |
| 8mm |
3.17 |
12.68 |
51 |
64 |
76 |
89 |
| 10mm |
2.54 |
10.16 |
41 |
51 |
61 |
71 |
| 12mm |
2.11 |
8.44 |
34 |
42 |
51 |
59 |
| 14mm |
1.81 |
7.24 |
29 |
36 |
44 |
51 |
| 16mm |
1.58 |
6.32 |
25 |
32 |
38 |
44 |
| 18mm |
1.41 |
5.64 |
23 |
28 |
34 |
40 |
|
