Commonly Used Wire Gauge

Commonly Used Wire Gauge

 

Wire Gauge Size

SWG(mm)

BWG(mm)

Metric(mm)

8

4.06

4.19

4.00

9

3.66

3.76

/

10

3.25

3.40

3.50

11

2.95

3.05

3.00

12

2.64

2.77

2.80

13

2.34

2.41

2.50

14

2.03

2.11

/

15

1.83

1.83

1.80

16

1.63

1.65

1.65

17

1.42

1.47

1.40

18

1.22

1.25

1.20

19

1.02

1.07

1.00

20

0.91

0.89

0.90

21

0.81

0.813

0.80

22

0.71

0.711

0.70

        

        The left is wire gauge, the right is three kinds of standard, SWG(Standard Wire Gauge), BWG(Birmingham Wire Gauge) and Metric wire gauge, all refer to the Dia. of wire.