Gage in Decimals Chart

Gage #

Sheet Steel 

Strip & Tubing

Aluminum

Stainless Steel

6/0
5/0
4/0
3/0
2/0

----
----
----
----
----

----
.500
.454
.425
.380

.5800
.5165
.4600
.4096
.3648

.4687
.4375
.4062
.3750
.3437

0
1
2
3
4
5

----
----
----
.2391
.2242
.2092

.340
.300
.284
.259
.238
.220

.3249
.2893
.2576
.2294
.2043
.1819

.3125
.2812
.2656
.2500
.2344
.2187

6
7
8
9
10
11

.1943
.1793
.1644
.1495
.1345
.1196

.203
.180
.165
.148
.134
.120

.1620
.1443
.1285
.1144
.1019
.0907

.2031
.1875
.1719
.1562
.1406
.1250

12
13
14
15
16
17

.1046
.0897
.0747
.0673
.0598
.0538

.109
.095
.083
.072
.065
.058

.0808
.0720
.0641
.0571
.0508
.0453

.1094
.0937
.0781
.0703
.0625
.0562

18
19
20
21
22
23

.0478
.0418
.0359
.0329
.0299
.0269

.049
.042
.035
.032
.028
.025

.0403
.0359
.0320
.0285
.0253
.0226

.0500
.0437
.0375
.0344
.0312
.0281

24
25
26
27
28
29

.0239
.0209
.0179
.0164
.0149
.0135

.022
.020
.018
.016
.014
.013

.0201
.0179
.0159
.0142
.0126
.0113

.0250
.0219
.0187
.0172
.0156
.0141

30
31
32
33
34
35
36
37
38

.0120
.0105
.0097
.0090
.0082
.0075
.0067
.0064
.0060

.012
.010
.009
.008
.007
.005
.004
----
----

.0100
.0089
.0080
.0071
.0063
.0056
.0050
.0045
.0040

.0125
.0109
.0102
.0094
.0086
.0078
.0070
.0066
.0062

All values are estimates and are provided for reference only.