Fillable Printable Conduit Capacity Chart Template

Conduit Capacity Chart Template

Technical Reference

183

Conduit Capacity Chart

Important Note: This conduit capacity

chart is to be used as a general guideline.

Because local codes can vary from the

National Electrical Code, West Penn Wire

cannot be held responsible for this informa-

tion as it pertains to your installation. Proper

conduit fill is the sole responsibility of the

installer and it is your responsibility to see

that your installation will pass local codes.

* Permissible Area to be occupied (sq. in.) based on the NEC standard of 40% fill, which applies to three or more non-lead covered

cables installed in the same conduit.

2 2 1/2 3 3 1/2 4 4 1/2Conduit Size 1/2 3/4 1 1 1/4 1 1/2 5

2.067 2.469 3.068 3.548 4.026 4.506I.D., inches .622 .824 1.049 1.380 1.610 5.047

1.34 1.92 2.95 3.96 5.09 6.38

Permissible Ar ea*

0.12 0.21 0.34 0.60 0.82 8.00

Cable O.D.

inch

Cable Area

Sq. inch

170 243 376 503 648 8120.100 15 27 44 76 103 10180.008

109 156 240 322 414 5190.125 9 17 28 48 66 6520.012

75 108 167 223 288 3600.150 6 12 19 33 46 4520.018

55 79 122 164 211 2650.175 5 8 14 24 33 3320.024

42 60 94 125 162 2030.200 3 6 11 19 25 2540.031

33 48 74 99 128 1600.225 3 5 8 15 20 2010.040

27 39 60 80 103 1290.250 2 4 7 12 16 1630.049

22 32 49 66 85 1070.275 2 3 5 10 13 1340.059

18 27 41 55 72 900.300 1 3 4 8 11 1130.071

16 23 35 47 61 760.325 1 2 4 7 9 960.083

13 19 30 41 52 660.350 1 2 3 6 8 830.096

12 17 26 35 46 570.375 1 1 3 5 7 720.110

10 15 23 31 40 500.400 – 1 2 4 6 630.126

9 13 20 27 35 440.425 – 1 2 4 5 560.142

8 12 18 24 32 400.450 – 1 2 3 5 500.159

7 10 16 22 28 350.475 – 1 1 3 4 450.177

6 9 15 20 25 320.500 – 1 1 3 4 400.196

6 8 13 18 23 290.525 – – 1 2 3 360.216

5 8 12 16 21 260.550 – – 1 2 3 330.238

5 7 11 15 19 240.575 – – 1 2 3 300.260

4 6 10 13 18 220.600 – – 1 2 2 280.283

4 6 9 12 16 200.625 – – 1 1 2 260.307

4 5 8 11 15 190.650 – – 1 1 2 240.332

3 5 8 11 14 170.675 – – – 1 2 220.358

3 4 7 10 13 160.700 – – – 1 2 200.385

3 4 7 9 12 150.725 – – – 1 1 190.413

3 4 6 8 11 140.750 – – – 1 1 180.442

2 4 6 8 10 130.775 – – – 1 1 160.472

2 3 5 7 10 120.800 – – – 1 1 150.503

2 3 5 7 9 110.825 – – – 1 1 140.535

2 3 5 6 8 110.850 – – – 1 1 140.567

2 3 4 6 8 100.875 – – – – 1 130.601

2 3 4 6 8 100.900 – – – – 1 120.636

1 2 4 5 7 90.925 – – – – 1 110.672

1 2 4 5 7 80.950 – – – – 1 110.709

1 2 3 5 6 80.975 – – – – 1 100.747

1 2 3 5 6 81.000 – – – – 1 100.785

1 2 3 4 6 71.025 – – – – – 90.825

1 2 3 4 5 71.050 – – – – – 90.866

1 2 3 4 5 71.075 – – – – – 80.908

1 2 3 4 5 61.100 – – – – – 80.950

1 1 2 3 5 61.125 – – – – – 80.994

1 1 2 3 4 61.150 – – – – – 71.039

1 1 2 3 4 51.175 – – – – – 71.084

1 1 2 3 4 51.200 – – – – – 71.131

1 1 2 3 4 51.225 – – – – – 61.179

1 1 2 3 4 51.250 – – – – – 61.227

1 1 2 3 3 41.275 – – – – – 61.277

1 1 2 2 3 41.300 – – – – – 61.327

– 1 2 2 3 41.325 – – – – – 51.379

– 1 2 2 3 41.350 – – – – – 51.431

– 1 1 2 3 41.375 – – – – – 51.485

– 1 1 2 3 41.400 – – – – – 51.539

1.425 1.595 – – – – – – 1 1 2 3 3 5

1.450 1.651 – – – – – – 1 1 2 3 3 4

1.475 1.709 – – – – – – 1 1 2 2 3 4

1.500 1.767 – – – – – – 1 1 2 2 3 4