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Wire Size Cross Reference Chart

The following table is provided for your convenience.  We believe that the data presented is reliable, however we make no claim as to the accuracy of the information.

 

Return To References Home Page

 

Wire Size Cross Reference Chart

Logical
AWG
Size

 

AWG
& Aught
Sizes

MCM
or
kcmil
Size

Circular
Mills

Cross
Section
mm2

Max Metric
UL 486
Equivalent
mm2

Cross
Section
Inch2

Diameter
Solid

Inch

Diameter
Solid
MM

Diameter
Stranded
Approx Max
Inch

41

41

 

8

0.00397

 

0.0000062

0.0028

0.071

 

40

40

 

10

0.00501

 

0.0000078

0.0031

0.080

 

39

39

 

12

0.00632

 

0.0000098

0.0035

0.090

 

38

38

 

16

0.00797

 

0.0000123

0.0040

0.101

 

37

37

 

20

0.01005

 

0.0000156

0.0045

0.113

 

36

36

 

25

0.01267

 

0.0000196

0.0050

0.127

 

35

35

 

32

0.01597

 

0.0000248

0.0056

0.143

 

34

34

 

40

0.02014

 

0.0000312

0.0063

0.160

 

33

33

 

50

0.02540

 

0.0000394

0.0071

0.180

 

32

32

 

63

0.03203

 

0.0000496

0.0080

0.202

 

31

31

 

80

0.04039

 

0.0000626

0.0089

0.227

 

30

30

 

100

0.05093

0.05000

0.0000789

0.0100

0.255

 

29

29

 

127

0.06422

 

0.0000995

0.0113

0.286

 

28

28

 

160

0.08097

 

0.000126

0.0126

0.321

 

27

27

 

201

0.10211

 

0.000158

0.0142

0.361

 

26

26

 

254

0.12875

 

0.000200

0.0159

0.405

 

25

25

 

320

0.16235

 

0.000252

0.0179

0.455

 

24

24

 

404

0.20473

0.20000

0.000317

0.0201

0.511

 

23

23

 

509

0.25815

 

0.000400

0.0226

0.573

 

22

22

 

642

0.32552

0.32000

0.000505

0.0253

0.644

 

21

21

 

810

0.41048

 

0.000636

0.0285

0.723

 

20

20

 

1021

0.51760

 

0.000802

0.0320

0.812

0.036

19

19

 

1288

0.65268

 

0.00101

0.0359

0.912

 

18

18

 

1624

0.82301

 

0.00128

0.0403

1.02

0.046

17

17

 

2048

1.03780

 

0.00161

0.0453

1.15

 

16

16

 

2582

1.30864

1.30000

0.00203

0.0508

1.29

0.058

15

15

 

3256

1.65016

 

0.00256

0.0571

1.45

 

14

14

 

4106

2.08080

2.10000

0.00323

0.0641

1.63

0.073

13

13

 

5178

2.62384

 

0.00407

0.0720

1.83

 

12

12

 

6529

3.30859

3.30000

0.00513

0.0808

2.05

0.092

11

11

 

8233

4.17204

 

0.00647

0.0907

2.30

 

10

10

10

10382

5.26084

5.30000

0.00815

0.102

2.59

0.116

9

9

13

13091

6.63377

 

0.0103

0.114

2.91

0.130

8

8

17

16507

8.36501

8.40000

0.0130

0.128

3.26

0.146

7

7

21

20815

10.5481

 

0.0163

0.144

3.66

0.164

6

6

26

26248

13.3008

13.30000

0.0206

0.162

4.12

0.184

5

5

33

33098

16.7720

 

0.0260

0.182

4.62

0.206

4

4

42

41735

21.1490

 

0.0328

0.204

5.19

0.232

3

3

53

52627

26.6684

26.70000

0.0413

0.229

5.83

0.260

2

2

66

66361

33.6281

33.60000

0.0521

0.258

6.54

0.292

1

1

84

83680

42.4042

 

0.0657

0.289

7.35

0.332

0

1/0

106

105518

53.4705

 

0.0829

0.325

8.25

0.373

-1

2/0

133

133056

67.4249

 

0.1045

0.365

9.27

0.419

-2

3/0

168

167780

85.0210

 

0.1318

0.410

10.40

0.471

-3

4/0

212

211566

107.209

 

0.1662

0.460

11.68

0.528

-3.7

4.7/0

250

250000

126.677

120.00000

0.1963

0.500

12.70

0.575

-4.5

5.5/0

300

300000

152.012

 

0.2356

0.548

13.91

0.630

-5.2

6.2/0

350

350000

177.348

 

0.2749

0.592

15.03

0.681

-5.7

6.7/0

400

400000

202.683

 

0.3142

0.632

16.06

0.728

-6.3

7.3/0

450

450000

228.018

 

0.3534

0.671

17.04

 

-6.7

7.7/0

500

500000

253.354

 

0.3927

0.707

17.96

0.814

-7.5

8.5/0

600

600000

304.025

 

0.4712

0.775

19.67

0.893

-8.2

9.2/0

700

700000

354.695

 

0.5498

0.837

21.25

0.964

-8.5

9.5/0

750

750000

380.031

 

0.5890

0.866

22.00

0.999

-8.7

9.7/0

800

800000

405.366

 

0.6283

0.894

22.72

1.032

-9.2

10.2/0

900

900000

456.037

 

0.7069

0.949

24.10

 

-9.7

10.7/0

1000

1000000

506.708

508.00000

0.7854

1.000

25.40

1.153

-10.7

11.7/0

1250

1250000

633.384

 

0.9817

1.118

28.40

1.289

-11.4

12.4/0

1500

1500000

760.061

 

1.1781

1.225

31.11

1.413

-12.1

13.1/0

1750

1750000

886.738

 

1.3744

1.323

33.60

 

-12.7

13.7

2000

2000000

1013.415

1016.00000

1.5708

1.414

35.92

1.632

Definitions:

Mil:  1/1000 of an inch

Circular Mil:  The area of a circle 1/1000 inch in diameter

MCM:  Thousands of Circular Mils

kcmil:  Thousands of Circular Mils (same as MCM)

AWG:  -4.3125 LN (mm2) + 17.16 (approx interpolated) –or-

AWG:  -4.3125 LN (inch2) - 10.74 (approx interpolated)

Aught:  An old English contraction of "one naught" meaning "one zero".

Logical AWG numbers are developed by continuing the series in a logarithmic relationship to the cross sectional area of the wire.

Return To References Home Page 

 

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