Confused About Needle Sizes?
Needle Thickness
Machine needle thickness increases as size increases.
Example: Size 18 is thick.
But with hand sewing needles, thickness decreases as size increases.
Example: Size 12 are sliver-thin.
American sizes are on top row; European sizes on bottom row.
| Size | 8 | 9 | 10 | 11 | 12 | 14 | 16 | 18 |
| mm | 60 | 65 | 70 | 75 | 80 | 90 | 100 | 110 |
Deciphering Twin Needles
2.0/80: 2.0 is mm between needles, 80 is needle size.