Wire Gauges & Resistance

Guides

 

Kanthal A1

Gauge

(AWG)

Wire Diameter

(mm)

Resistance

Ω/m

1cm

Ω/m

1.5cm

Ω/m

18

1.02

20

0.81

2.76  0.028  0.042

22

0.64

4.33  0.043  0.065

24

0.51 7.09  0.071 0.107
26 0.40 11.42  0.114  0.171

27

0.35 14.17 0.142 0.213

28

0.32 18.11 0.181 0.272
29 0.28 22.44 0.224

0.336

30

0.25 28.35 0.284 0.426

31

0.23 35.83 0.358 0.537
32 0.20 45.28 0.453

0.680

33 0.17 57.09 0.571

0.857

34

0.15 72.44 0.724 1.086
35

0.14

 90.55  0.906 1.359

36

0.12 114.97 1.150 1.725

37

0.11  144.88 1.449 2.174
38

0.10

 181.50 1.815  2.723

39

 0.09

40

0.08

41

42

 

 

Ni80

Gauge

(AWG)

Wire Diameter

(mm)

Resistance

Ω/m

1cm

Ω/m

1.5cm

Ω/m

18

1.02

20

0.81 1.97

0.020

 0.030
22 0.64 3.15

0.032

 0.048

24

0.51 5.12 0.051 0.077

26

0.40 8.66

0.087

0.131
27 0.35 10.63

0.106

0.159

28

0.32 13.39 0.134 0.201

29

0.28 17.32 0.173 0.260
30 0.25 21.65

0.217

0.326
31 0.23 27.17

0.272

0.408

32

0.20 34.65 0.347  0.521
33 0.17 43.70

0.437

 0.656

34

0.15 55.51 0.555  0.833
35 0.14 69.29

0.693

1.040

36

0.12 88.19 0.882 1.323
37 0.11 111.81

1.118

1.677

38

0.10 140.16 1.402 2.103
39  0.09

40

 0.08

41

42

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