Nail Sizes:
0: 19mm
1: 18mm
2: 17mm
3: 16.5mm
4: 16mm
5: 15mm
6: 14.5mm
7: 14mm
8: 13.5mm
9: 13mm
10: 11.5mm
11: 10mm
The size of the press-on nail measured widthwise in mm. To find the size of your nail, use a soft tape measure to record the widest part of your nail bed from left to right. If you only have a tape measure with cm and inches, use centimeter side and convert to mm by multiplying by 10 or moving decimal point (1) place to the right. E.g. 1.9cm = 19mm