Sheet Metal Gauge Chart

Published: 12 May 2026

Copper Gauge Chart

Gauge
Number		InchesMM
7.1804.572
8.1654.191
9.1483.759
10.1343.404
11.1203.048
12.1092.769
14.0832.108
16.0651.651
18.0491.245
20.035.889
22.028.711
24.022.559
26.018.457
28.014.356
30.012.305

Aluminum Gauge Chart

Gauge
Number		InchesMM
7.14433.665
8.12853.264
9.11442.906
10.10192.588
11.090742.305
12.080812.053
14.064081.628
16.050821.291
18.040301.024
20.03196.812
22.02535.644
24.02010.511
26.01594.405
28.01264.321
30.01003.255

Stainless Steel Gauge Chart

Gauge
Number		InchesMM
8.171874.365
9.156253.968
10.140623.571
11.1253.175
12.109372.778
14.078121.984
16.06251.587
18.0501.270
20.0375.9525
22.03125.7937
24.025.635
26.01875.476
28.01562.396
30.0125.3175

Mild Steel Gauge Chart

Gauge
Number		InchesMM
7.17934.554
8.16444.175
9.14953.797
10.13453.416
11.11963.038
12.10462.656
14.07471.897
16.05981.518
18.04781.214
20.0359.911
22.0299.759
24.0239.607
26.0179.454
28.0149.378

Galvanized Steel Gauge Chart

Gauge
Number		InchesMM
8.16814.269
9.15323.891
10.13823.510
11.12333.1318
12.10842.753
14.07851.9939
16.06351.6129
18.05161.310
20.03961.005
22.0336.853
24.0276.701
26.0217.551
28.0187.474
30.0157.398
Asif Ali Avatar
Asif Ali

Hi, I’m Asif Ali. I have a bachelor’s degree in Mechanical Engineering. Through Mechanical Guide Hub, I aim to simplify complex mechanical concepts and present them in a clear and engaging way. This platform is built to make learning mechanical topics easy, enjoyable, and accessible for everyone.

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