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Wire Size Cross Reference

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.

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