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WIRE GAUGE TABLES
American Wire Gauge (AWG) sizes may be determined by measuring the diameter of the conductor (the bare wire) with the insulation removed. Refer to the Wire gauge Diameter Table for dimensions. When choosing wire gauge, the distance the wire must run and the amperage it will be expected to carry must be determined first. Refer to the Wire gauge Selection Table. Note that you can always use thicker wire (lower gauge number) than is recommended.
 

METRIC-TO-AWG CONVERSION TABLE

Metric Size       mm2

AWG Size

0.5

20

0.8

18

1.0

16

2.0

14

3.0

12

5.0

10

8.0

8

13.0

6

19.0

4

32.0

2

52.0

0

 

WIRE GAUGE DIAMETER TABLE

American Wire gauge

Wire Diameter in inches

20

0.03196118

18

0.040303

16

0.0508214

14

0.064084

12

0.08080810

10

0.10189

8

0.128496

6

0.16202

5

0.18194

4

0.20431

3

0.22942

2

0.25763

1

0.2893

0

0.32486

00

0.3648

 

WIRE GAUGE SELECTION TABLE

Circuit Amperes

Circuit Watts

Wire gauge (for length in feet)

6V

12V

6V

12V

3'

5'

7'

10'

15'

20'

25'

0 to 2.5

0 to 5

15

30

18

18

18

18

18

18

18

3.0

6

18

36

18

18

18

18

18

18

16

3.5

7

21

42

18

18

18

18

18

18

16

4.0

8

24

48

18

18

18

18

18

16

16

5.0

10

30

60

18

18

18

18

16

16

16

5.5

11

33

66

18

18

18

18

16

16

14

6.0

12

36

72

18

18

18

18

16

16

14

7.5

15

45

90

18

18

18

18

14

14

12

9.0

18

54

108

18

18

16

16

14

14

12

10

20

60

120

18

18

16

16

14

12

10

11

22

66

132

18

18

16

16

12

12

10

12

24

72

144

18

18

16

16

12

12

10

15

30

90

180

18

16

16

14

10

10

10

20

40

120

240

18

16

14

12

10

10

8

25

50

150

300

16

14

12

12

10

10

8

50

100

300

600

12

12

10

10

6

6

4

75

150

450

900

10

10

8

8

4

4

2

100

200

600

1200

10

8

8

6

4

4

2

 

This chart is meant to be used for reference only. It has been constructed considering a current density of 35 circular mills per AMP. There is no assurance that the coil will withstand the specified amperage if the proper cooling is not provided.

 

Bare Wire OD

Bare Wire OD

Fusing Current (Amps)

Continuous Operating

AWG

in Millimeters

Inches (mils)

@35 cm/Amp

Current - Amps

40.0

0.080746

3.178959

0.288737

0.057747

39.5

0.085515

3.366713

0.323850

0.064770

39.0

0.090565

3.565557

0.363234

0.072646

38.5

0.095914

3.776144

0.407407

0.081481

38.0

0.101579

3.999168

0.456953

0.091390

37.5

0.107578

4.235365

0.512523

0.102504

37.0

0.113932

4.485512

0.574852

0.114970

36.5

0.120661

4.750433

0.644760

0.128952

36.0

0.127787

5.031000

0.723170

0.144634

35.5

0.135335

5.328138

0.811116

0.162223

35.0

0.143328

5.642826

0.909757

0.181951

34.5

0.151793

5.976099

1.020393

0.204078

34.0

0.160758

6.329057

1.144484

0.228896

33.5

0.170253

6.702860

1.283667

0.256733

33.0

0.180308

7.098741

1.439775

0.287955

32.5

0.190957

7.518003

1.614868

0.322973

32.0

0.202235

7.962027

1.811253

0.362250

31.5

0.214180

8.432276

2.031522

0.406304

31.0

0.226830

8.930298

2.278578

0.455715

30.5

0.240226

9.457735

2.555679

0.511135

30.0

0.254415

10.016323

2.866478

0.573295

29.5

0.269441

10.607901

3.215073

0.643014

29.0

0.285354

11.234419

3.606062

0.721212

28.5

0.302208

11.897941

4.044600

0.808920

28.0

0.320057

12.600650

4.536468

0.907293

27.5

0.338960

13.344863

5.088154

1.017630

27.0

0.358979

14.133030

5.706930

1.141386

26.5

0.380181

14.967748

6.400956

1.280191

26.0

0.402635

15.851765

7.179384

1.435876

25.5

0.426415

16.787993

8.052478

1.610495

25.0

0.451600

17.779517

9.031749

1.806349

24.5

0.478272

18.829601

10.130111

2.026022

24.0

0.506519

19.941705

11.362046

2.272409

23.5

0.536435

21.119491

12.743797

2.548717

23.0

0.568118

22.366839

14.293586

2.858717

22.5

0.601672

23.687857

16.031845

3.206369

22.0

0.637207

25.086897

17.981497

3.596299

21.5

0.674842

26.568566

20.168248

4.033649

21.0

0.714699

28.137744

22.620933

4.524186

20.5

0.756910

29.799601

25.371891

5.074378

20.0

0.801614

31.559609

28.457397

5.691479

19.5

0.848959

33.423565

31.918135

6.383627

19.0

0.899099

35.397610

35.799737

7.159947

18.5

0.952201

37.488244

40.153385

8.030677

18.0

1.008440

39.702355

45.036486

9.007297

17.5

1.068000

42.047234

50.513426

10.102685

17.0

1.131077

44.530605

56.656423

11.331284

16.5

1.197880

47.160648

63.546478

12.709295

16.0

1.268629

49.946025

71.274440

14.254888

 

 

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