Sizes Chart

 Piercing Gauge Size Conversion Chart

 

Gauge
Inches (decimal)
Inches (fractional)
Millimeters
20
.032
approx. 1/32"
.812
18
.040
> 1/32"
1.024
16
.051
< 1/16"
1.291
14
.064
approx. 1/16"
1.628
12
.081
> 1/16"
2.053
10
.102
< 1/8"
2.588
8
.128
approx. 1/8"
3.264
6
.162
> 1/8"
4.115
4
.204
< 1/4"
5.189
2
.258
approx 1/4"
6.544
0
.325
5/16"
8.251
00
.365
approx. 3/8"
9.266
000
.410
7/16"
11.110
0000
.500
1/2"
12.710
9/16"
.563
9/16"
14.287
5/8"
.630
5/8"
15.875
3/4"
.750
3/4"
19.050
7/8"
.875
7/8"
22.225
1"
1.000
1"
25.400