Lc

SHEET METAL GAUGES

 

Thickness in inches and Millimeters

No.
Standard wire gauge
Birmingham gauge
in.
mm
in.
mm
15/0
-
-
1.000
25.4
14/0
-
-
0.9583
24.34
13/0
-
-
0.9167
23.28
12/0
-
-
0.8750
22.22
11/0
-
-
0.8333
21.17
10/0
-
-
0.7917
20.11
9/0
-
-
0.750
19.05
8/0
-
-
0.7083
17.99
7/0
0.500
12.700
0.6666
16.93
6/0
0.464
11.786
0.625
15.88
5/0
0.432
10.973
0.5883
14.94
4/0
0.400
10.160
0.5416
13.76
3/0
0.372
9.449
0.500
12.70
2/0
0.348
8.839
0.4452
11.31
0
0.324
8.230
0.3964
10.07
1
0.300
7.620
0.3532
8.971
2
0.276
7.010
0.3147
7.993
3
0.252
6.401
0.2804
7.122
4
0.232
5.893
0.250
6.350
5
0.212
5.385
0.2225
5.652
6
0.192
4.877
0.1981
5.032
7
0.716
4.470
0.1764
4.481
8
0.160
4.064
0.1570
3.988
9
0.144
3.658
0.1398
3.551
10
0.128
3.251
0.1250
3.175
11
0.116
2.946
0.1113
2.827
12
0.104
2.642
0.0991
2.517
13
0.092
2.337
0.0882
2.250
14
0.080
2.032
0.0785
1.994
15
0.072
1.829
0.0699
1.775
16
0.064
1.626
0.0625
1.588
17
0.056
1.422
0.0556
1.412
18
0.048
1.219
0.0495
1.257
19
0.040
1.016
0.0440
1.118
20
0.036
0.914
0.0392
0.9957
21
0.032
0.813
0.0349
0.08865
22
0.028
0.711
0.03125
0.7938
23
0.024
0.610
0.02782
0.7066
24
0.022
0.559
0.02476
0.6289
25
0.020
0.508
0.02204
0.5599
26
0.018
0.457
0.01961
0.4981
27
0.0164
0.4166
0.01745
0.4432
28
0.0148
0.3579
0.015625
0.3969
29
0.0136
0.3454
0.0139
0.3531
30
0.0124
0.3150
0.0123
0.3124
31
0.0116
0.2946
0.0110
0.2794
32
0.0108
0.2743
0.0098
0.2489
33
0.0100
02540
0.0087
0.2210
34
0.0092
0.2337
0.0070
0.1956
35
0.0084
0.2134
0.0069
0.1753
36
0.0076
0.1930
0.0061
0.1549
37
0.0068
0.1727
0.0054
0.1372
38
0.0060
0.1524
0.0048
0.1219
39
0.0052
0.1321
0.0043
0.1092
40
0.0048
0.1219
0.00386
0.09804
41
0.0044
0.1118
0.00343
0.08712
42
0.0040
0.1016
0.00306
0.07772
43
0.0036
0.0914
0.00272
0.06909
44
0.0032
0.0813
0.00242
0.06147
45
0.0028
0.0711
0.00215
0.05461
46
0.0024
0.0610
0.00192
0.04877
47
0.0020
0.0508
0.00170
0.04318
48
0.0016
0.0406
0.00152
0.03861
49
0.0012
0.0305
0.00135
0.03429
50
0.0010
0.0254
0.00120
0.03048
51
-
0.00107
0.02718
52
-
0.00095
0.02413
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