Wire and Sheet Metal Gauge Equivalents

 

Wire and Sheet Metal Gauge Equivalents

Number
 

Imperial Standard 
(swg)

Birmingham Wire
(bwg)

ins

mm

ins

mm

0

.324

8.23

.340

8.63

1

.300

7.620

.300

7.62

2

.276

7.010

.284

7.21

3

.252

6.400

.259

6.58

4

.232

5.893

.238

6.05

5

.212

5.385

.220

5.59

6

.192

4.877

.203

5.16

7

.176

4.470

.180

4.57

8

.160

4.064

1.65

4.19

9

.144

3.657

.148

3.76

10

.128

3.251

.134

3.40

11

.116

2.946

.120

3.04

12

.104

2.641

.109

2.77

13

.092

2.337

.095

2.41

14

.080

2.032

.083

2.11

15

.072

1.828

.072

1.83

16

.064

1.626

.065

1.65

17

.056

1.422

.058

1.47

18

.048

1.219

.049

1.24

19

.040

1.02

.042

1.07

20

.036

.914

.035

.888

21

.032

.813

.032

.813

22

.028

.711

.028

.711

23

.024

.610

.025

.635

24

.0220

.559

.022

.559

25

.020

.508

.020

.508

 

 

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