PVC Conduit Fill Table
This is a combination of Table C10 (PVC Schedule 40) and Table C9 (PVC Schedule 80) Based on Table 1 Chapter 9 of the 2005 National Electric Code.


Trade Size
in Inches 		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 40 11 8 5 3 1 1 1 1 1 1 --- --- --- --- --- --- --- --- --- --- ---
80 9 6 4 2 1 1 1 1 --- --- --- --- --- --- --- --- --- --- --- --- ---
3/4 40 21 15 9 5 4 2 1 1 1 1 1 1 1 --- --- --- --- --- --- --- ---
80 17 12 7 4 3 1 1 1 1 1 1 1 --- --- --- --- --- --- --- --- ---
1 40 34 25 15 9 6 4 3 3 1 1 1 1 1 1 1 1 --- --- --- --- ---
80 28 20 13 7 5 3 3 2 1 1 1 1 1 1 --- --- --- --- --- --- ---
1-1/4 40 60 43 27 16 11 7 6 5 3 3 2 1 1 1 1 1 1 1 1 --- ---
80 51 37 23 13 9 6 5 4 3 2 1 1 1 1 1 1 1 1 --- --- ---
1-1/2 40 82 59 37 21 15 9 8 7 5 4 3 3 2 1 1 1 1 1 1 1 1
80 70 51 32 18 13 8 7 6 4 3 3 2 1 1 1 1 1 1 1 1 1
2 40 135 99 62 36 26 16 13 11 8 7 6 5 4 3 3 2 1 1 1 1 1
80 118 86 54 31 22 14 12 10 7 6 5 3 3 2 1 1 1 1 1 1 1
2-1/2 40 193 141 89 51 37 22 19 16 12 10 8 7 6 4 4 3 3 2 1 1 1
80 170 124 78 45 32 20 17 14 10 9 7 6 5 4 3 3 3 2 1 1 1
3 40 299 218 137 79 57 35 30 25 18 15 13 11 9 7 6 5 5 4 3 3 2
80 265 193 122 70 51 31 26 22 16 14 11 9 8 6 5 5 4 3 3 2 2
3-1/2 40 401 293 184 106 77 47 40 33 25 21 17 14 12 10 8 7 6 5 4 4 3
80 358 261 164 95 68 42 35 30 22 18 15 13 10 8 7 6 6 5 4 3 3
4 40 517 377 238 137 99 61 51 43 32 27 22 18 15 12 11 9 8 7 5 5 4
80 464 338 213 123 89 54 46 39 29 24 20 17 14 11 9 8 7 6 5 4 4
5 40 815 594 374 216 156 96 81 68 50 42 35 29 24 20 17 15 13 11 9 8 7
80 736 537 338 195 141 86 73 61 45 38 32 26 22 18 15 13 12 10 8 7 7
6 40 1178 859 541 312 225 138 117 98 73 61 51 42 35 28 24 21 19 16 13 11 11
80 1055 770 485 279 202 124 105 88 65 55 46 38 31 25 22 19 17 14 12 10 9