Conduit Type:
EMT
(RNC) PVC 40
(RNC) PVC 80
(RMC) Rigid GRC
IMC
ENT
Flex
LFMC
(RNC) Type DB-60
(RNC) Type EB-20
Select Units of Measure:
English (US)
Metric
Conduit Property Table
Trade Size
Interior Diameter
Exterior Diameter
Interior Area
Exterior Area
Interior Volume per
Exterior Volume per
1/2"
0.62 in
0.71 in
0.30 in2
0.39 in2
36.46 in3
46.98 in3
3/4"
0.82 in
0.92 in
0.53 in2
0.67 in2
63.99 in3
80.12 in3
1"
1.04 in
1.16 in
0.85 in2
1.06 in2
101.94 in3
127.48 in3
1 1/4"
1.38 in
1.51 in
1.50 in2
1.79 in2
179.49 in3
214.89 in3
1 1/2"
1.61 in
1.74 in
2.04 in2
2.38 in2
244.30 in3
285.34 in3
2"
2.07 in
2.20 in
3.36 in2
3.79 in2
402.67 in3
454.92 in3
2 1/2"
2.73 in
2.88 in
5.86 in2
6.49 in2
702.93 in3
779.02 in3
3"
3.36 in
3.50 in
8.85 in2
9.62 in2
1,061.49 in3
1,154.54 in3
3 1/2"
3.83 in
4.00 in
11.55 in2
12.57 in2
1,385.40 in3
1,507.96 in3
4"
4.33 in
4.50 in
14.75 in2
15.90 in2
1,770.31 in3
1,908.52 in3
Maximum Number of Wires in Conduit
1/2"
3/4"
1"
1 1/4"
1 1/2"
2"
2 1/2"
3"
3 1/2"
4"
#14
12
22
35
61
84
138
242
365
477
609
#12
9
16
25
45
61
101
176
266
347
444
#10
5
10
16
28
38
63
110
167
218
279
#8
3
5
9
16
22
36
63
96
126
161
#6
1
4
6
11
16
26
46
69
91
116
#4
1
2
4
7
9
16
28
42
56
71
#3
1
1
3
6
8
13
24
36
47
60
#2
1
1
2
5
7
11
20
30
39
50
#1
1
1
1
3
5
8
14
22
29
37
#1/0
0
1
1
3
4
7
12
19
24
31
#2/0
0
1
1
2
3
6
10
15
20
26
#3/0
0
1
1
1
3
5
8
13
17
22
#4/0
0
0
1
1
1
4
7
10
14
18
#250
0
0
1
1
1
3
5
8
11
14
#300
0
0
0
1
1
2
5
7
10
12
#350
0
0
0
1
1
1
4
6
8
11
#400
0
0
0
1
1
1
3
6
7
10
#500
0
0
0
1
1
1
3
5
6
8
#600
0
0
0
0
1
1
2
4
5
6
#700
0
0
0
0
1
1
1
3
4
5
#750
0
0
0
0
1
1
1
3
4
5
#800
0
0
0
0
0
1
1
3
4
5
#900
0
0
0
0
0
1
1
2
3
4
#1000
0
0
0
0
0
1
1
2
3
4
