Table C3 (Flexible Metal Conduit) 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 13 9 6 3 2 1 1 1 1 1 --- --- --- --- --- --- --- --- --- --- ---
3/4 22 16 10 6 4 2 1 1 1 1 1 1 1 --- --- --- --- --- --- --- ---
1 33 24 15 9 6 4 3 3 1 1 1 1 1 1 1 1 --- --- --- --- ---
1-1/4 52 38 24 14 10 6 5 4 3 2 1 1 1 1 1 1 1 1 --- --- ---
1-1/2 76 56 35 20 14 9 7 6 4 4 3 2 1 1 1 1 1 1 1 1 1
2 134 98 62 35 25 16 13 11 8 7 6 5 4 3 3 2 1 1 1 1 1
2-1/2 202 147 93 53 38 24 20 17 12 10 9 7 6 5 4 3 3 2 1 1 1
3 291 212 134 77 55 34 29 24 18 15 12 10 8 7 6 5 5 4 3 3 2
3-1/2 396 289 182 105 76 46 39 33 24 20 17 14 12 9 8 7 6 5 4 4 3
4 518 378 238 137 99 61 51 43 32 27 22 18 15 12 11 9 8 7 5 5 4