Type THW Wire O.D.

Type THHN Wire O.D.

Type Teflon® Wire O.D.

Type PVC Wire O.D.

Size AWG.*

(mm)

Circumference

(mm)

Circumference

(mm)

Circumference

(mm)

Circumference

22

-

-

-

-

1.52

4.77

1.57

4.93

20

-

-

-

-

1.73

5.43

1.75

5.50

18

2.74

2.64

2.26

7.10

2.01

6.31

2.00

6.28

16

3.00

9.42

2.54

7.98

2.26

7.10

2.34

7.35

14

4.11

12.91

2.67

8.38

-

-

3.50

10.99

12

4.55

14.29

3.10

9.73

-

-

4.01

12.59

10

5.05

15.86

3.89

12.21

-

-

4.65

14.60

8

7.01

22.01

5.54

17.40

-

-

6.35

19.94

6

8.20

25.75

6.53

20.50

-

-

-

-

4

9.45

29.67

8.33

26.16

-

-

-

-

3

10.19

32.00

9.04

28.39

-

-

-

-

2

11.00

34.54

9.86

30.96

-

-

-

-

1

12.90

40.51

11.43

35.89

-

-

-

-

1/0

13.95

43.80

12.47

39.16

-

-

-

-

2/0

15.11

47.45

13.64

42.83

-

-

-

-

3/0

16.43

51.59

14.94

46.91

-

-

-

-

4/0

17.91

56.24

16.41

51.53

-

-

-

-

'American Wire Gauge