Rhinestone Conversion Chart
Understanding SS size and PP size references--easily convert stone sizes to millimeter and inch size ranges for designing.
Rhinestones are measured in a "range" of sizes rather than a precise measurement, using the following:
PP (Pearl Plate) is a method of sizing originally used for pearls by placing them on a surface or plate with holes. The pearls were sized by which holes they fell through. PP is usually used for smaller stones. Pearl plate has a variance of 1/10 of a millimeter.
SS (Stone Size) is the most current method of rhinestone sizing, although PP is still used. Some stones will have both a PP and SS size on the package label.
Please note: Smaller point back rhinestones are measured in PP (Pearl Plate) and flat back and larger point back rhinestones are measured in SS (Stone Size).
*Image sizes are not actual size.
| PP | SS | Size (mm) | Size (inches) | Image* |
| PP1 | SS000 | 0.80-0.90 | 0.032-0.035 |
 |
| PP2 | SS00 | 0.90-1.00 | 0.035-0.039 |
 |
| PP3 | SS0 | 1.00-1.10 | 0.039-0.043 |
 |
| PP4 | SS1 | 1.10-1.20 | 0.043-0.047 |
 |
| PP5 | SS2 | 1.20-1.30 | 0.047-0.051 |
 |
| PP6 | SS2 | 1.30-1.35 | 0.051-0.053 |
 |
| PP7 | SS3 | 1.35-1.40 | 0.053-0.055 |
 |
| PP8 | SS3 | 1.40-1.50 | 0.055-0.059 |
 |
| PP9 | SS4 | 1.50-1.60 | 0.059-0.063 |
 |
| PP10 | SS4 | 1.60-1.70 | 0.063-0.067 |
 |
| PP11 | SS5 | 1.70-1.80 | 0.067-0.071 |
 |
| PP12 | SS5 | 1.80-1.90 | 0.071-0.075 |
 |
| PP13 | SS6 | 1.90-2.00 | 0.075-0.079 |
 |
| PP14 | SS6 | 2.00-2.10 | 0.079-0.083 |
 |
| PP15 | SS7 | 2.10-2.20 | 0.083-0.087 |
 |
| PP16 | SS7 | 2.20-2.30 | 0.087-0.091 |
 |
| PP17 | SS8 | 2.30-2.40 | 0.091-0.095 |
 |
| PP18 | SS8 | 2.40-2.50 | 0.095-0.098 |
 |
| PP19 | SS9 | 2.50-2.60 | 0.098-0.10 |
 |
| PP20 | SS9 | 2.60-2.70 | 0.10-0.106 |
 |
| PP21 | SS10 | 2.70-2.80 | 0.106-0.11 |
 |
| PP22 | SS10 | 2.80-2.90 | 0.11 |
 |
| PP23 | SS11 | 2.90-3.00 | 0.11-0.12 |
|
| PP24 | SS12 | 3.00-3.20 | 0.12-0.13 |
 |
| PP25 | SS13 | 3.20-3.30 | 0.13 |
 |
| PP26 | SS13 | 3.30-3.40 | 0.133 |
 |
| PP27 | SS14 | 3.40-3.50 | 0.133-0.14 |
 |
| PP28 | SS14 | 3.50-3.60 | 0.14 |
 |
| PP29 | SS15 | 3.60-3.70 | 0.14-0.15 |
 |
| PP30 | SS15 | 3.70-3.80 | 0.15 |
 |
| PP31 | SS16 | 3.80-4.00 | 0.15-0.16 |
 |
| PP32 | SS17 | 4.00-4.10 | 0.16 |
 |
| PP33 | SS17 | 4.10-4.20 | 0.16-0.17 |
 |
| SS19 | 4.40-4.60 | 0.17-0.18 |
 |
|
| SS20 | 4.60-4.80 | 0.18-0.19 |
 |
|
| SS21 | 4.80-4.90 | 0.19 |
 |
|
| SS22 | 4.90-5.10 | 0.19-0.20 |
 |
|
| SS23 | 5.10-5.27 | 0.20-0.21 |
 |
|
| SS24 | 5.27-5.44 | 0.21 |
 |
|
| SS25 | 5.44-5.61 | 0.21-0.22 |
 |
|
| SS26 | 5.61-5.78 | 0.22-0.23 |
 |
|
| SS27 | 5.78-5.96 | 0.23 |
 |
|
| SS28 | 5.96-6.14 | 0.23-0.24 |
 |
|
| SS29 | 6.14-6.32 | 0.24-0.25 |
 |
|
| SS30 | 6.32-6.50 | 0.25-0.26 |
 |
|
| SS31 | 6.50-6.68 | 0.26 |
 |
|
| SS32 | 6.680-6.872 | 0.26-0.27 |
 |
|
| SS33 | 6.872-7.069 | 0.27-0.28 |
 |
|
| SS34 | 7.069-7.272 | 0.28-0.29 |
 |
|
| SS35 | 7.272-7.482 | 0.29-0.30 |
 |
|
| SS36 | 7.482-7.700 | 0.30 |
 |
|
| SS37 | 7.700-7.927 | 0.30-0.31 |
 |
|
| SS38 | 7.927-8.164 | 0.31-0.32 |
 |
|
| SS39 | 8.164-8.412 | 0.32-0.33 |
 |
|
| SS40 | 8.412-8.672 | 0.33-0.34 |
 |
|
| SS41 | 8.672-8.945 | 0.34-0.35 |
 |
|
| SS42 | 8.945-9.232 | 0.35-0.36 |
 |
|
| SS43 | 9.232-9.534 | 0.36-0.38 |
 |
|
| SS44 | 9.534-9.852 | 0.38-0.39 |
 |
|
| SS45 | 9.852-10.187 | 0.39-0.40 |
 |
|
| SS46 | 10.187-10.540 | 0.40-0.41 |
 |
|
| SS47 | 10.540-10.912 | 0.41-0.43 |
 |
|
| SS48 | 10.912-11.304 | 0.43-0.45 |
 |
|
| SS49 | 11.304-11.717 | 0.45-0.46 |
 |
|
| SS50 | 11.717-11.970 | 0.46-0.47 |
 |
|
| SS55 | 12.97-13.22 | 0.51-0.52 |
 |
|
| SS60 | 14.22-14.47 | 0.56-0.57 |
 |
|
| SS65 | 15.47-15.72 | 0.57-0.62 |
 |
|
| SS70 | 16.72-16.97 | 0.66-0.67 |
 |
|
| SS75 | 17.97-18.22 | 0.71-0.72 |
 |
How did you like this resource? Your feedback helps us provide resources that matter to you most.
Copyright Permissions
All works of authorship (articles, videos, tutorials and other creative works) are from the Fire Mountain Gems and Beads® Collection, and permission to copy is granted for non-commercial educational purposes only. All other reproduction requires written permission. For more information, please email copyrightpermission@firemtn.com.