由于
Ga.
進制和英寸不同，因此不存在轉換公式，單位對照如下
|
Gauge (Ga.)
|
標準鋼材厚度 （英寸）
|
鍍鋅鋼材厚度（英寸）
|
鋁材厚度 （英寸）
|
標準鋼材厚度 （mm）
|
鍍鋅鋼材厚度 （mm）
|
鋁材厚度 （mm）
|
|
3
|
0.2391
|
|
0.2294
|
6.07314
|
|
5.82676
|
|
4
|
0.2242
|
|
0.2043
|
5.69468
|
|
5.18922
|
|
5
|
0.2092
|
|
0.1819
|
5.31368
|
|
4.62026
|
|
6
|
0.1943
|
|
0.162
|
4.93522
|
|
4.1148
|
|
7
|
0.1793
|
|
0.1443
|
4.55422
|
|
3.66522
|
|
8
|
0.1644
|
|
0.1285
|
4.17576
|
|
3.2639
|
|
9
|
0.1495
|
0.1532
|
0.1144
|
3.7973
|
3.89128
|
2.90576
|
|
10
|
0.1345
|
0.1382
|
0.1019
|
3.4163
|
3.51028
|
2.58826
|
|
11
|
0.1196
|
0.1233
|
0.0907
|
3.03784
|
3.13182
|
2.30378
|
|
12
|
0.1046
|
0.1084
|
0.0808
|
2.65684
|
2.75336
|
2.05232
|
|
13
|
0.0897
|
0.0934
|
0.072
|
2.27838
|
2.37236
|
1.8288
|
|
14
|
0.0747
|
0.0785
|
0.0641
|
1.89738
|
1.9939
|
1.62814
|
|
15
|
0.0673
|
0.071
|
0.0571
|
1.70942
|
1.8034
|
1.45034
|
|
16
|
0.0598
|
0.0635
|
0.0508
|
1.51892
|
1.6129
|
1.29032
|
|
17
|
0.0538
|
0.0575
|
0.0453
|
1.36652
|
1.4605
|
1.15062
|
|
18
|
0.0478
|
0.0516
|
0.0403
|
1.21412
|
1.31064
|
1.02362
|
|
19
|
0.0418
|
0.0456
|
0.0359
|
1.06172
|
1.15824
|
0.91186
|
|
20
|
0.0359
|
0.0396
|
0.032
|
0.91186
|
1.00584
|
0.8128
|
|
21
|
0.0329
|
0.0366
|
0.0285
|
0.83566
|
0.92964
|
0.7239
|
|
22
|
0.0299
|
0.0336
|
0.0253
|
0.75946
|
0.85344
|
0.64262
|
|
23
|
0.0269
|
0.0306
|
0.0226
|
0.68326
|
0.77724
|
0.57404
|
|
24
|
0.0239
|
0.0276
|
0.0201
|
0.60706
|
0.7004
|
0.51054
|
|
25
|
0.0209
|
0.0247
|
0.0179
|
0.53086
|
0.62738
|
0.45466
|
|
26
|
0.0179
|
0.0217
|
0.0159
|
0.45466
|
0.55118
|
0.40386
|
|
27
|
0.0164
|
0.0202
|
0.0142
|
0.41656
|
0.51308
|
0.36068
|
|
28
|
0.0149
|
0.0187
|
0.0126
|
0.37846
|
0.47498
|
0.32004
|
|
29
|
0.035
|
0.0172
|
0.0113
|
0.3429
|
0.43688
|
0.28702
|
|
30
|
0.012
|
0.0157
|
0.01
|
0.3048
|
0.39878
|
0.254
|
|
31
|
0.0105
|
0.0142
|
0.0089
|
0.2667
|
0.36068
|
0.22606
|
|
32
|
0.0097
|
0.0134
|
0.008
|
0.24638
|
0.34036
|
0.2032
|
|
33
|
0.009
|
|
0.0071
|
0.2286
|
|
0.18034
|
|
34
|
0.0082
|
|
0.0063
|
0.20828
|
|
0.16002
|
|
35
|
0.0075
|
|
0.0056
|
0.1905
|
|
0.14224
|
|
36
|
0.0067
|
|
|
0.17018
|
|
|