Conversion Tables
Inches to Millimeters:
Inches |
Millimeters |
1/16 in. |
1.5mm |
1/8 in. |
3mm |
1/4 in |
6mm |
3/8 in |
9mm |
1/2 in |
12mm |
5/8 in |
15mm |
3/4 in |
18.5mm |
7/8 in |
22mm |
1 in |
25mm |
Inches and Millimeters Comparison:

Please note that this is a close approximation. Screen resolution and monitor size will affect how you view the chart.
Wire Gauge to Inches and Millimeters Conversion Chart:
Gauge |
Inches |
Millimeters |
10 |
0.102 |
2.59 |
11 |
0.091 |
2.31 |
12 |
0.081 |
2.06 |
13 |
0.072 |
1.83 |
14 |
0.064 |
1.63 |
15 |
0.057 |
1.45 |
16 |
0.052 |
1.32 |
17 |
0.045 |
1.14 |
18 |
0.04 |
1.02 |
19 |
0.036 |
0.91 |
20 |
0.032 |
0.81 |
21 |
0.028 |
0.71 |
22 |
0.025 |
0.64 |
23 |
0.023 |
0.58 |
24 |
0.02 |
0.51 |
25 |
0.0179 |
0.455 |
26 |
0.0159 |
0.404 |
27 |
0.0142 |
0.361 |
28 |
0.0126 |
0.32 |
29 |
0.0113 |
0.287 |
30 |
0.01 |
0.25 |
31 |
0.0089 |
0.226 |
32 |
0.008 |
0.2 |
33 |
0.0071 |
0.18 |
34 |
0.0063 |
0.16 |
35 |
0.0056 |
0.142 |
36 |
0.005 |
0.13 |
37 |
0.0045 |
0.114 |
38 |
0.004 |
0.1 |