Gauge Chart

Gauge English
inches
Steel
Metric
Glass
Metric
18 0.041 1 mm 1mm
14 0.064″ 1.6 mm 1.5 mm
12 0.081″ 2.1 mm 2.0 mm
10 0.102″ 2.4 mm 2.5 mm
8 0.128″ 3.2 mm 3 mm
6 0.164″ 4.1 mm 4 mm
4 0.204″ 5.2 mm 5 mm
2 0.250″ 6.5 mm 6
mm
1 7 mm 7 mm
0 0.312″ 8.0 mm 8 mm
00 0.375″ 9.5 mm 9 mm
000 10 mm
7/16 0.438″ 11.1 mm 11 mm
1/2 0.500″ 12.7 mm 13 mm
9/16″ 0..5625 14 mm 14 mm
  15mm
5/8″ 0.625 15.9 mm 16 mm
11/16 0.6875 17.3 17mm
    18mm
3/4″ 0.750″ 19 mm 19 mm
13/16″ 0.8125 20.5mm 20mm
7/8″ 0.875 22 mm 22 mm
15/16″ 0.9375 24 mm
1″ 1.00 25.4 mm 25.4-26 mm
1 1/8″ 1.125 29 mm 28 mm
1 3/16″ 0.1875 30 mm 30 mm
1 1/4″ 1.25 32 mm 32 mm
1 3/8″ 1.375 34mm
1 7/16″ 1.4375 36mm
1 1/2″ 1.50 38 mm 38 mm
1 9/16″ 1.5625 40mm
1 5/8″ 1.625 42mm
1 3/4″ 1.75 44 mm 44 mm
1 7/8″ 1.875 46mm
2″ 2.00 51 mm 51 mm