Trade Size Wire Size (THWN, THHN) Conductor Size AWG/kcmil
14 12 10 8 6 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 500 600 700 750
1/2
EMT
12 9 5 3 2 1 1 1 1 1

IMC
14 10 6 3 2 1 1 1 1 1 1

GRC
13 9 6 3 2 1 1 1 1 1
3/4
EMT
22 16 10 6 4 2 1 1 1 1 1 1 1

IMC
24 17 11 6 4 3 2 1 1 1 1 1 1
GRC 22 16 10 6 4 2 1 1 1 1 1 1 1
1 EMT 35 26 16 9 7 4 3 3 1 1 1 1 1 1 1 1
IMC 39 29 18 10 7 4 4 3 2 1 1 1 1 1 1 1 1
GRC 36 26 17 9 7 4 3 3 1 1 1 1 1 1 1 1 1
1 1/4 EMT 61 45 28 16 12 7 6 5 4 3 2 1 1 1 1 1 1 1 1 1
IMC 68 49 31 18 13 8 6 5 4 3 2 1 1 1 1 1 1 1 1 1 1
GRC 63 46 29 16 12 7 6 5 4 3 2 1 1 1 1 1 1 1 1 1
1 1/2 EMT 84 61 38 22 16 10 8 7 5 4 3 2 1 1 1 1 1 1 1 1 1
IMC 91 67 42 24 17 10 9 7 5 4 4 3 3 2 1 1 1 1 1 1 1
GRC 85 62 39 22 16 10 8 7 5 4 3 3 2 1 1 1 1 1 1 1 1
2 EMT 138 101 63 36 26 16 13 11 8 7 6 5 4 3 2 1 1 1 1 1 1
IMC 149 109 68 39 38 17 15 12 9 8 6 5 4 3 3 2 2 1 1 1 1
GRC 140 102 64 37 27 16 14 11 8 7 6 5 4 3 3 2 2 1 1 1 1
2 1/2 EMT 241 176 111 64 46 28 24 20 15 12 10 8 7 6 5 4 4 3 2 2 1

IMC
211 154 97 56 40 25 21 17 13 11 9 7 6 5 4 4 3 3 2 1 1

GRC
200 146 92 53 38 23 20 17 12 10 8 7 6 5 4 3 3 2 1 1 1
3
EMT
364 266 167 96 69 43 36 30 22 19 16 13 11 9 7 6 6 5 4 3 3

IMC
362 238 150 86 62 38 32 27 20 17 14 12 9 8 7 6 5 4 3 3 3

GRC
309 225 142 82 59 36 31 26 19 16 13 11 9 7 6 5 5 4 3 3 3
3 1/2
EMT
476 347 219 126 91 56 47 40 29 25 20 17 14 11 10 9 8 6 5 4 4

IMC
436 318 200 115 83 51 43 36 27 23 19 16 13 10 9 8 7 6 5 4 4

GRC
412 301 189 109 79 48 41 34 25 21 18 15 12 10 8 7 7 5 4 4 4
4
EMT
608 443 279 161 116 71 60 51 37 32 26 22 18 15 13 11 10 8 7 6 5

IMC
562 410 258 149 107 66 56 47 35 29 24 20 17 13 12 10 9 7 6 5 5

GRC
531 387 244 140 101 62 53 44 33 27 23 19 16 13 11 10 8 7 6 5 5

Above information referenced from tables C1, C4, and C8 of the 1996 NEC.

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