Brown and Sharpe Gauge Chart & Wire Conversion Chart

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