This conduit to fill table is supplied to recognize how countless wires have the right to be safe put right into non-PVC conduit tubing or pipe. Each heat going across is a various size and form of conduit, one of two people EMT, IMC, or galvanized pipeline (rigid metal conduit, RMC). Each shaft (going up and down) is a various gauge the wire.


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The results display the allowable number of wires for each size/type of conduit and wire, based on the 2020 NEC code. Also see: the PVC Conduit fill Table.


Trade size in Inches

Wire dimension (THWN, THHN) Conductor dimension 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 1/2 in EMT 1/2 in IMC 1/2 in GALV 3/4 3/4 in EMT 3/4 in IMC 3/4 in GALV 1 1 in EMT 1 in IMC 1 in GALV 1 1/4 1 1/4 in EMT 1 1/4 in IMC 1 1/4 in GALV 1 1/2 1 1/2 in EMT 1 1/2 in IMC 1 1/2 in GALV 2 2 in EMT 2 in IMC 2 in GALV 2 1/2 2 1/2 in EMT 2 1/2 in IMC 2 1/2 in GALV 3 3 in EMT 3 in IMC 3 in GALV 3 1/2 3 1/2 in EMT 3 1/2 in IMC 3 1/2 in GALV 4 4 in EMT 4 in IMC 4 in GALV
12 9 5 3 2 1 1 1 1 1
14 10 6 3 2 1 1 1 1 1 1
13 9 6 3 2 1 1 1 1 1
22 16 10 6 4 2 1 1 1 1 1 1 1
24 17 11 6 4 3 2 1 1 1 1 1 1
22 16 10 6 4 2 1 1 1 1 1 1 1
35 26 16 9 7 4 3 3 1 1 1 1 1 1 1 1
39 29 18 10 7 4 4 3 2 1 1 1 1 1 1 1 1
36 26 17 9 7 4 3 3 1 1 1 1 1 1 1 1 1
61 45 28 16 12 7 6 5 4 3 2 1 1 1 1 1 1 1 1 1
68 49 31 18 13 8 6 5 4 3 3 2 1 1 1 1 1 1 1 1 1
63 46 29 16 12 7 6 5 4 3 2 1 1 1 1 1 1 1 1 1
84 61 38 22 16 10 8 7 5 4 3 3 2 1 1 1 1 1 1 1 1
91 67 42 24 17 11 9 7 5 4 4 3 2 1 1 1 1 1 1 1 1
85 62 39 22 16 10 8 7 5 4 3 3 2 1 1 1 1 1 1 1 1
138 101 63 36 26 16 13 11 8 7 6 5 4 3 3 2 1 1 1 1 1
149 109 69 39 28 17 15 12 9 8 6 5 4 3 3 2 2 1 1 1 1
140 102 64 37 27 16 14 11 8 7 6 5 4 3 3 2 2 1 1 1 1
241 176 111 64 46 28 24 20 15 12 10 8 7 6 5 4 4 3 2 2 1
211 154 97 56 40 25 21 17 13 11 9 7 6 5 4 4 3 3 2 1 1
200 146 92 53 38 23 20 17 12 10 8 7 6 5 4 3 3 2 1 1 1
364 266 167 96 69 43 36 30 22 19 16 13 11 9 7 6 6 5 4 3 3
326 238 150 86 62 38 32 27 20 17 14 12 9 8 7 6 5 4 3 3 3
309 225 142 82 59 36 31 26 19 16 13 11 9 7 6 5 5 4 3 3 3
476 347 219 126 91 56 47 40 29 25 20 17 14 11 10 9 8 6 5 4 4
436 318 200 115 83 51 43 36 27 23 19 16 13 10 9 8 7 6 5 4 4
412 301 189 109 79 48 41 34 25 21 18 15 12 10 8 7 7 5 4 4 4
608 443 279 161 116 71 60 51 37 32 26 22 18 15 13 11 10 8 7 6 5
562 410 258 149 107 66 56 47 35 29 24 20 17 13 12 10 9 7 6 5 5
531 387 244 140 101 62 53 44 33 27 23 19 16 13 11 10 8 7 6 5 5

Trade size in inch Wire dimension (THWN, THHN) Conductor dimension AWG/kcmil 14 12 10 1/2 1/2 in EMT 1/2 in GALV 1/2 in IMC 3/4 3/4 in EMT 3/4 in GALV 3/4 in IMC 1 1 in EMT 1 in GALV 1 in IMC 1 1/4 1 1/4 in EMT 1 1/4 in GALV 1 1/4 in IMC 1 1/2 1 1/2 in EMT 1 1/2 in GALV 1 1/2 in IMC 2 2 in EMT 2 in GALV 2 in IMC 2 1/2 2 1/2 in EMT 2 1/2 in GALV 2 1/2 in IMC 3 3 in EMT 3 in GALV 3 in IMC 3 1/2 3 1/2 in EMT 3 1/2 in GALV 3 1/2 in IMC 4 4 in EMT 4 in GALV 4 in IMC optimal of page
12 9 5
13 9 6
14 10 6
22 16 10
22 16 10
24 17 11
35 26 16
36 26 17
39 29 18
61 45 28
63 46 29
68 49 31
84 61 38
85 62 39
91 67 42
138 101 63
140 102 64
149 109 69
241 176 111
200 146 92
211 154 97
364 266 167
309 225 142
326 238 150
476 347 219
412 301 189
436 318 200
608 443 279
531 387 244
562 410 258
Trade dimension in inch Wire size (THWN, THHN) Conductor dimension AWG/kcmil 8 6 4 1/2 1/2 in EMT 1/2 in GALV 1/2 in IMC 3/4 3/4 in EMT 3/4 in GALV 3/4 in IMC 1 1 in EMT 1 in GALV 1 in IMC 1 1/4 1 1/4 in EMT 1 1/4 in GALV 1 1/4 in IMC 1 1/2 1 1/2 in EMT 1 1/2 in GALV 1 1/2 in IMC 2 2 in EMT 2 in GALV 2 in IMC 2 1/2 2 1/2 in EMT 2 1/2 in GALV 2 1/2 in IMC 3 3 in EMT 3 in GALV 3 in IMC 3 1/2 3 1/2 in EMT 3 1/2 in GALV 3 1/2 in IMC 4 4 in EMT 4 in GALV 4 in IMC optimal of page
3 2 1
3 2 1
3 2 1
6 4 2
6 4 2
6 4 3
9 7 4
9 7 4
10 7 4
16 12 7
16 12 7
18 13 8
22 16 10
22 16 10
24 17 11
36 26 16
37 27 16
39 28 17
64 46 28
53 38 23
56 40 25
96 69 43
82 59 36
86 62 38
126 91 56
109 79 48
115 83 51
161 116 71
140 101 62
149 107 66
Trade size in customs Wire dimension (THWN, THHN) Conductor dimension AWG/kcmil 3 2 1 1/2 1/2 in EMT 1/2 in GALV 1/2 in IMC 3/4 3/4 in EMT 3/4 in GALV 3/4 in IMC 1 1 in EMT 1 in GALV 1 in IMC 1 1/4 1 1/4 in EMT 1 1/4 in GALV 1 1/4 in IMC 1 1/2 1 1/2 in EMT 1 1/2 in GALV 1 1/2 in IMC 2 2 in EMT 2 in GALV 2 in IMC 2 1/2 2 1/2 in EMT 2 1/2 in GALV 2 1/2 in IMC 3 3 in EMT 3 in GALV 3 in IMC 3 1/2 3 1/2 in EMT 3 1/2 in GALV 3 1/2 in IMC 4 4 in EMT 4 in GALV 4 in IMC peak of page
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
2 1 1
3 3 1
3 3 1
4 3 2
6 5 4
6 5 4
6 5 4
8 7 5
8 7 5
9 7 5
13 11 8
14 11 8
15 12 9
24 20 15
20 17 12
21 17 13
36 30 22
31 26 19
32 27 20
47 40 29
41 34 25
43 36 27
60 51 37
53 44 33
56 47 35
Trade dimension in inch Wire size (THWN, THHN) Conductor dimension AWG/kcmil 1/0 2/0 3/0 1/2 1/2 in EMT 1/2 in GALV 1/2 in IMC 3/4 3/4 in EMT 3/4 in GALV 3/4 in IMC 1 1 in EMT 1 in GALV 1 in IMC 1 1/4 1 1/4 in EMT 1 1/4 in GALV 1 1/4 in IMC 1 1/2 1 1/2 in EMT 1 1/2 in GALV 1 1/2 in IMC 2 2 in EMT 2 in GALV 2 in IMC 2 1/2 2 1/2 in EMT 2 1/2 in GALV 2 1/2 in IMC 3 3 in EMT 3 in GALV 3 in IMC 3 1/2 3 1/2 in EMT 3 1/2 in GALV 3 1/2 in IMC 4 4 in EMT 4 in GALV 4 in IMC top of page
1
1
1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
3 2 1
3 2 1
3 3 2
4 3 3
4 3 3
4 4 3
7 6 5
7 6 5
8 6 5
12 10 8
10 8 7
11 9 7
19 16 13
16 13 11
17 14 12
25 20 17
21 18 15
23 19 16
32 26 22
27 23 19
29 24 20
Trade dimension in Ichnes Wire size (THWN, THHN) Conductor dimension AWG/kcmil 4/0 250 300 1/2 1/2 in EMT 1/2 in GALV 1/2 in IMC 3/4 3/4 in EMT 3/4 in GALV 3/4 in IMC 1 1 in EMT 1 in GALV 1 in IMC 1 1/4 1 1/4 in EMT 1 1/4 in GALV 1 1/4 in IMC 1 1/2 1 1/2 in EMT 1 1/2 in GALV 1 1/2 in IMC 2 2 in EMT 2 in GALV 2 in IMC 2 1/2 2 1/2 in EMT 2 1/2 in GALV 2 1/2 in IMC 3 3 in EMT 3 in GALV 3 in IMC 3 1/2 3 1/2 in EMT 3 1/2 in GALV 3 1/2 in IMC 4 4 in EMT 4 in GALV 4 in IMC peak of page
1
1
1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
2 1 1
2 1 1
2 1 1
4 3 3
4 3 3
4 3 3
7 6 5
6 5 4
6 5 4
11 9 7
9 7 6
9 8 7
14 11 10
12 10 8
13 10 9
18 15 13
16 13 11
17 13 12
Trade dimension in inch Wire size (THWN, THHN) Conductor dimension AWG/kcmil 350 400 500 1/2 1/2 in EMT 1/2 in GALV 1/2 in IMC 3/4 3/4 in EMT 3/4 in GALV 3/4 in IMC 1 1 in EMT 1 in GALV 1 in IMC 1 1/4 1 1/4 in EMT 1 1/4 in GALV 1 1/4 in IMC 1 1/2 1 1/2 in EMT 1 1/2 in GALV 1 1/2 in IMC 2 2 in EMT 2 in GALV 2 in IMC 2 1/2 2 1/2 in EMT 2 1/2 in GALV 2 1/2 in IMC 3 3 in EMT 3 in GALV 3 in IMC 3 1/2 3 1/2 in EMT 3 1/2 in GALV 3 1/2 in IMC 4 4 in EMT 4 in GALV 4 in IMC optimal of page
1
1 1
1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
2 1 1
2 2 1
2 2 1
4 4 3
3 3 2
4 3 3
6 6 5
5 5 4
6 5 4
9 8 6
7 7 5
8 7 6
11 10 8
10 8 7
10 9 7
Trade size in customs Wire size (THWN, THHN) Conductor size AWG/kcmil 600 700 750 1/2 1/2 in EMT 1/2 in GALV 1/2 in IMC 3/4 3/4 in EMT 3/4 in GALV 3/4 in IMC 1 1 in EMT 1 in GALV 1 in IMC 1 1/4 1 1/4 in EMT 1 1/4 in GALV 1 1/4 in IMC 1 1/2 1 1/2 in EMT 1 1/2 in GALV 1 1/2 in IMC 2 2 in EMT 2 in GALV 2 in IMC 2 1/2 2 1/2 in EMT 2 1/2 in GALV 2 1/2 in IMC 3 3 in EMT 3 in GALV 3 in IMC 3 1/2 3 1/2 in EMT 3 1/2 in GALV 3 1/2 in IMC 4 4 in EMT 4 in GALV 4 in IMC peak of page
1 1
1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
2 2 1
1 1 1
2 1 1
4 3 3
3 3 3
3 3 3
5 4 4
4 4 4
5 4 4
7 6 5
6 5 5
6 5 5