Gauge in decimals of an inch

Use the chart provided below to convert standard gauge numbers in decimals of an inch for sheet steel, strip and tubing, aluminum and stainless steel.

Gauge #

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