UL, Metric & SAE Strand Charts

Solid & Stranded Specifications

  • Conforms to ASTM B-1 for hard drawn, ASTM B-2 for medium hard drawn, ASTM B-2 for soft or annealed copper wire and ASTM B-8 for concentric lay
  • Conforms to Federal Standard QQ-W-343
  • Conforms to National Bureau of Standards Handbook
  • Breaking strength and resistance are calculated in accordance with ASTM B-258
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Solid Bare Copper

Cross Sectional Hard Drawn Medium Hard Drawn Soft Drawn
AWG Nom. Diameter (in) Area (Cir. Mils) Appx. Net Wt. (lb/1000ft) Min. Breaking Strength (lb) Max. DC Resistance @ 20C (OHMS/1000ft) Min. Breaking Strength (lb) Max. Breaking Strength (lb) Max DC Resistance @ 20C (OHMS/1000ft) Max. Breaking Strength (lb) Max. DC Resistance @ 20C (OHMS/1000ft)
36 0.0050 25.0 0.0757 1.4 431 1.2 1.3 429 0.78 415
35 0.0056 31.4 0.0949 1.8 344 1.5 1.6 342 0.99 331
34 0.0063 39.7 0.120 2.2 272 1.8 2.0 270 1.2 261
33 0.0071 50.4 0.153 2.8 214 2.3 2.6 213 1.6 206
32 0.0080 64.0 0.194 3.5 168 2.9 3.2 168 1.9 162
31 0.0089 79.2 0.240 4.4 136 3.6 4.0 135 2.5 131
30 0.0100 100 0.303 6 108 4.5 5.1 107 3.2 104
29 0.0113 128 0.387 7 84.5 5.6 6.3 84.0 3.9 81.2
28 0.0126 159 0.481 9 67.9 7.1 7.9 67.6 5.0 65.3
27 0.0142 202 0.610 11 53.5 8.9 10 53.2 6.3 51.4
26 0.0159 253 0.765 14 42.7 11 13 42.4 7.9 41.0
25 0.0179 320 0.970 17 33.7 14 16 33.5 10 32.4
24 0.0201 404 1.22 22 26.7 17 20 26.6 13 25.7
23 0.0226 511 1.55 27 21.1 22 25 21.0 15 20.3
22 0.0253 640 1.94 34 16.9 27 31 16.8 19 16.2
21 0.0285 812 2.46 43 13.3 34 39 13.2 24 12.8
20 0.0320 1,020 3.10 54 10.5 43 49 10.5 31 10.1
19 0.0359 1,290 3.90 68 8.37 54 61 8.32 39 8.05
18 0.0403 1,620 4.92 85 6.64 67 76 6.61 49 6.39
17 0.0453 2,050 6.21 108 5.26 84 96 5.23 62 5.05
16 0.0508 2,580 7.81 135 4.18 106 120 4.16 73 4.02
15 0.0571 3,260 9.87 170 3.31 151 165 3.29 99 3.18
14 0.0641 4,110 12.4 214 2.63 167 189 2.61 124 2.52
13 0.0720 5,180 15.7 268 2.09 209 237 2.07 157 2.00
12 0.0808 6,530 19.8 337 1.65 262 297 1.64 197 1.59
11 0.0907 8,230 24.9 423 1.31 327 372 1.30 249 1.26
10 0.1019 10,380 31.43 529 1.039 410 467 1.033 314 0.9988
9 0.1144 13,090 39.62 660 0.8241 513 585 0.8199 380 0.7925
8 0.1285 16,510 49.98 826 0.6532 644 734 0.6498 479 0.6281
7 0.1443 20,820 63.03 1030 0.5180 806 921 0.5153 605 0.4981
6 0.1620 26,240 79.44 1280 0.4110 1010 1154 0.4088 762 0.3952
5 0.1819 33,090 100.2 1591 0.3258 1265 1446 0.3243 961 0.3134
4 0.2043 41,740 126.3 1970 0.2584 1584 1814 0.2571 1213 0.2485
3 0.2294 52,620 159.3 2439 0.2049 1984 2273 0.2039 1529 0.1971
2 0.2576 66,360 200.9 3002 0.1625 2450 2814 0.1617 1928 0.1563
1 0.2893 83,690 253.3 3688 0.1289 3024 3484 0.1282 2432 0.1239
1/0 0.3249 105,600 319.5 4518 0.1011 3731 4311 0.1016 2985 0.09825
2/0 0.3650 133,100 403 5519 0.0802 4600 5330 0.0798 3763 0.0779
3/0 0.4100 167,800 508 6720 0.0636 5666 6590 0.0633 4745 0.0618
4/0 0.4600 211,600 640 8143 0.0505 6980 8143 0.0502 5983 0.0490

Stranded Bare Copper

Size (AWG/MCM) Stranding Nominal OD of Strand Approx. OD (in) Weight (lbs/Mft) OHMS/Resistance (per Mft)

36

34

7/44

7/42

0.0020

0.0025

0.0060

0.0075

0.085

0.132

382.0

244.0

32

7/40

19/44

0.0031

0.0020

0.0094

0.0099

0.203

0.230

159.0

142.0

30

7/38

19/42

0.0040

0.0025

0.0120

0.0120

0.339

0.359

95.40

90.80

28

7/36

19/40

0.0050

0.0031

0.0150

0.0160

0.529

0.553

61.00

59.10

26

7/34

10/36

19/38

0.0063

0.0050

0.0040

0.0190

0.0190

0.0200

0.841

0.757

0.920

38.50

40.40

35.50

24

7/32

10/34

19/36

41/40

0.0080

0.0063

0.0050

0.0031

0.0240

0.0230

0.0240

0.0240

1.356

1.201

1.430

1.160

23.30

26.09

22.70

25.59

22

7/30

19/34

26/36

0.0100

0.0063

0.0050

0.0300

0.0310

0.0300

2.120

2.280

1.970

15.30

14.30

15.94

20

7/28

10/30

19/32

26/34

41/36

105/40

0.0126

0.0100

0.0080

0.0063

0.0050

0.0032

0.0380

0.0410

0.0400

0.0370

0.0370

0.0400

3.150

3.090

3.680

3.120

3.100

3.200

9.600

10.168

8.900

10.05

10.02

10.609

18

7/26

16/30

19/0.0092

41/34

65/36

168/40

0.0159

0.0100

0.0092

0.0063

0.0050

0.0032

0.0480

0.0520

0.0450

0.0470

0.0460

0.0520

5.360

4.940

4.900

4.920

4.910

5.140

6.040

6.740

6.323

6.600

6.390

6.631

17 210/40 0.0032 0.0590 6.400 5.304
16

7/24

19/0.0117

19/29

26/30

65/34

105/36

0.0201

0.0117

0.0113

0.0100

0.0063

0.0050

0.0600

0.0560

0.0570

0.0660

0.0600

0.0600

8.560

8.020

7.350

8.030

7.810

7.950

3.670

4.152

4.480

4.000

4.020

3.990

14

7/0.0242

7/22

19/27

19/0.0147

41/30

105/34

0.0242

0.0253

0.0142

0.0147

0.0100

0.0063

0.0726

0.0760

0.0710

0.0700

0.0700

0.0740

12.76

13.56

11.59

12.70

12.40

12.61

2.480

2.310

2.700

2.476

2.660

2.490

12

7/20

19/25

19/0.0185

65/30

165/34

0.0320

0.0179

0.0185

0.0100

0.0063

0.0960

0.0900

0.0925

0.0910

0.0950

21.69

18.43

20.15

19.66

19.82

1.450

1.770

1.564

1.680

1.580

10

7/0.0385

19/0.0234

37/26

49/27

105/30

0.0385

0.0234

0.0159

0.0142

0.0100

0.1160

0.1170

0.1100

0.1200

0.1140

32.06

32.06

28.31

29.89

31.76

1.000

1.000

1.160

1.280

0.980

8

7/0.0486

19/0.0295

54/25

84/27

133/29

168/30

420/34

0.0486

0.0295

0.0179

0.0142

0.0113

0.0100

0.0063

0.1460

0.1440

0.1506

0.1490

0.1670

0.1740

0.1620

50.10

50.00

55.00

52.00

54.00

53.10

53.00

0.650

0.650

0.624

0.638

0.640

0.660

0.680

6

7/0.0612

19/0.0372

133/27

266/30

665/34

0.0612

0.0372

0.0142

0.0100

0.0063

0.1840

0.1860

0.2100

0.2040

0.2150

81.10

81.10

84.10

83.20

84.00

0.410

0.400

0.410

0.417

0.400

4

7/0.0772

19/0.0469

133/25

420/30

1064/34

0.0772

0.0469

0.0179

0.0100

0.0063

0.2320

0.2350

0.2570

0.2570

0.2690

129.00

129.00

135.00

140.00

134.00

0.260

0.240

0.258

0.264

0.266

2

7/0.0974

19/0.0591

133/0.0223

665/30

1666/34

0.0974

0.0591

0.0223

0.0100

0.0063

0.2920

0.2920

0.3290

0.3380

0.3370

204.90

205.00

208.00

213.00

212.00

0.162

0.170

0.166

0.167

0.169

1

19/0.0664

133/0.0251

259/0.0180

836/30

2107/34

0.0664

0.0251

0.0180

0.0010

0.0063

0.3320

0.3800

0.3780

0.3650

0.3760

266.00

264.00

265.24

266.00

268.00

0.130

0.132

0.121

0.133

0.134

1/0

7/0.01228

19/0.0745

37/0.0534

259/24

1064/30

2646/34

0.1228

0.0745

0.0534

0.0201

0.0010

0.0063

0.3690

0.3730

0.3700

0.4240

0.4510

0.4370

326.00

326.00

326.00

331.00

338.00

337.00

0.102

0.100

0.102

0.105

0.105

0.106

2/0

7/0.1379

19/0.0837

37/0.0600

259/0.0227

1330/30

3325/34

0.1379

0.0837

0.0600

0.0227

0.0100

0.0063

0.4140

0.4190

0.4200

0.4560

0.4960

0.5340

410.90

410.90

411.00

430.00

430.00

427.00

0.081

0.081

0.080

0.083

0.084

0.085

3/0

7/0.1548

19/0.0940

37/0.0673

259/0.0255

1666/30

4256/34

0.1548

0.0940

0.0673

0.0255

0.0100

0.0063

0.4650

0.4700

0.4700

0.5360

0.5330

0.6150

518.00

518.00

518.00

533.00

676.00

547.00

0.064

0.064

0.065

0.066

0.067

0.0647

4/0

7/0.1739

19/0.1055

37/0.0756

259/0.0286

427/0.0223

2107/30

5320/34

0.1739

0.1055

0.0756

0.0286

0.0223

0.0100

0.0063

0.5220

0.5280

0.5290

0.6010

0.6020

0.6700

0.6450

653.00

653.00

653.00

671.22

676.00

674.00

684.00

0.0510

0.0510

0.048

0.048

0.0522

0.0530

0.0535

250MCM

19/0.1147

37/0.0822

0.1147

0.0822

0.5750

0.5750

771.00

771.00

0.0430

0.0430

350MCM

19/0.1357

37/0.0973

0.1357

0.0973

0.6810

0.6810

1081.0

1081.0

0.030

0.031

500MCM

19/0.1622

37/0.1162

0.1622

0.1162

0.8130

0.8130

1544.0

1544.0

0.022

0.022

750MCM 61/0.1109 0.1109 0.9980 2316.0 0.010
1000MCM 61/0.1280 0.1280 1.1520 3088.0 0.009

AWG to mm2

AWG mm2 AWG mm2 AWG mm2 AWG mm2 AWG mm2 AWG mm2
30 0.05 21 0.38 14 2.5 4 25 3/0 95 600MCM 300
28 0.08 20 0.50 12 4 2 35 4/0 120 750MCM 400
26 0.14 18 0.75 10 6 1 50 300MCM 150 1000MCM 500
24 0.25 17 1.0 8 10 1/0 55 350MCM 185    
22 0.34 16 1.5 6 16 2/0 70 500MCM 240    

Automotive SAE Recommended Conductors

AWG Number of Strands Nominal OD of Strand
22 7/30 0.0100
20 7/28 0.0126
18 16/30 0.0100
18 19/32 0.0080
16 19/29 0.0113
14 19/27 0.0142
12 19/25 0.0179
10 19/23 0.0226
8 19/21 0.0285
6 37/21 0.0285
6 133/27 0.0142
4 61/22 0.0253
4 133/25 0.0179
2 133/23 0.0218
1 133/22 0.0243
1/0 133/21 0.0275
2/0 133/20 0.0309
3/0 266/22 0.0249
4/0 418/23 0.0226