Brown and Sharpe Gauge Chart & Wire Conversion Chart

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Brown and Shapre Gauge is simply a standard measure of thickness. Below are charts to use as measurement reference guides. These charts provides the necessary information to convert between inches, millimeters, feet/troy ounces, and gauges. To learn more about gauge and hardness please click here.

NOTE: The feet/Toz conversion below is approximate.

Brown and Sharpe Gauge Chart
Gauge Inches Millimeters
0 0.325 8.26
2 0.257 6.54
4 0.204 5.19
6 0.162 4.12
8 0.128 3.26
10 0.102 2.59
12 0.081 2.05
14 0.064 1.63
16 0.051 1.29
18 0.040 1.02
19 0.036 0.912
20 0.032 0.812
21 0.028 0.723
22 0.025 0.644
23 0.023 0.573
24 0.020 0.511
25 0.018 0.455
26 0.016 0.405
27 0.014 0.360
28 0.013 0.321
29 0.011 0.286
30 0.010 0.255
32 0.0080 0.2019
34 0.0063 0.1600
 
Wire Conversion
Gauge ft/Toz
14 4.65
16 7.5
18 12
20 19
22 31
24 48
26 77
28 125
30 200



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