Sizing Conversions
| Milimetres | Inches |
|---|---|
| 1.5mm | 1/16 in. |
| 3mm | 1/8 in. |
| 6mm | 1/4 in |
| 9mm | 3/8 in |
| 12mm | 1/2 in |
| 15mm | 5/8 in |
| 18.5mm | 3/4 in |
| 22mm | 7/8 in |
| 25mm | 1 in |
| Bead Size | Per Inch | 7" | 16" | 24" | 32" | 36" |
|---|---|---|---|---|---|---|
| 3mm | 8.25 | 57 | 132 | 200 | 265 | 288 |
| 4mm | 6.25 | 43 | 100 | 150 | 200 | 225 |
| 5mm | 5.00 | 35 | 82 | 124 | 160 | 180 |
| 6mm | 4.25 | 28 | 67 | 100 | 132 | 153 |
| 7mm | 3.50 | 24 | 57 | 85 | 114 | 126 |
| 8mm | 3.25 | 22 | 50 | 75 | 100 | 112 |
| 10mm | 2.50 | 18 | 40 | 60 | 80 | 90 |
| 12mm | 2.00 | 15 | 33 | 50 | 66 | 72 |
| 14mm | 1.75 | 13 | 29 | 43 | 56 | 63 |
| 16mm | 1.50 | 11 | 25 | 38 | 50 | 54 |
| 18mm | 1.25 | 10 | 23 | 34 | 45 | 50 |
| 20mm | 1.20 | 8 | 20 | 29 | 38 | 43 |
Please note that the above is an approximation and should be double-checked prior to purchasing :-)