T E C H N I C A L
I N F O R M A T I O N
23.16
Metric Conversions
Table 14: Conductor Size Equivalents (Square Millimeters / Square Inches / Circular Mils / AWG)
mm2
sq. in.
Circular
mils
1000
975
950
925
900
875
850
825
800
775
750
725
700
675
650
625
600
575
550
525
500
475
450
425
400
375
350
325
300
275
250
225
200
185
175
150
125
120
100
95
90
–
85
80
75
70
–
65
60
1.550
1.511
1.472
1.434
1.395
1.356
1.317
1.279
1.240
1.201
1.163
1.124
1.085
1.046
1.008
0.969
0.930
0.891
0.853
0.814
0.775
0.736
0.698
0.659
0.620
0.581
0.542
0.504
0.465
0.426
0.388
0.349
0.310
–
0.271
0.233
0.1938
–
0.1550
0.1472
0.1395
–
0.1317
0.1240
0.1163
0.1085
–
0.1008
0.0930
1974000
1924700
1875300
1826000
1776600
1727300
1677900
1628600
1579200
1529900
1480500
1431200
1381800
1332500
1283100
1233800
1184400
1135100
1085700
1036400
987000
937700
888300
839000
789600
740300
690900
641600
592200
542900
493500
444200
394800
–
345500
296100
246800
211600
197400
187530
177660
167800
167790
157920
148050
138180
133100
128310
118440
AWG
1000 MCM
750 MCM
600 MCM
500 MCM
350 MCM
300 MCM
To Convert:
Multiply by:
Inches to millimeters
Millimeters to inches
25.4
0.03937
4/0
3/0
2/0
mm2
sq. in.
Circular
mils
55
–
50
45
–
40
35
–
30
–
25
–
20.0
19.5
19.0
18.5
18.0
17.5
17.0
–
16.5
16.0
15.5
15.0
14.5
14.0
13.5
–
13.0
12.5
12.0
11.5
11.0
–
10.5
10.0
9.5
9.0
8.5
–
8.0
7.7
7.0
–
6.5
6.0
5.5
–
0.0853
–
0.0775
0.0698
–
0.0620
0.0542
–
0.0465
–
0.0388
–
0.0310
0.0302
0.0294
0.0287
0.0279
0.0271
0.0264
–
0.0256
0.0248
0.0240
0.0233
0.0225
0.0217
0.0209
–
0.0201
0.0194
0.0186
0.0178
0.0171
–
0.0163
0.0155
0.01472
0.01395
0.01317
–
0.01240
0.01163
0.01085
–
0.01008
0.00930
0.00853
–
108570
105600
98700
88830
83690
78960
69090
66360
59220
52620
49350
41740
39480
38490
37510
36520
35530
34550
33560
33090
32560
31580
30600
29610
28620
27640
26650
26420
25660
24680
23690
22700
21710
20820
20730
19740
18753
17766
16779
16510
15792
14805
13818
13090
12831
11844
10857
10380
AWG
1/0
1
2
3
4
5
6
mm2
sq. in.
Circular
mils
5.00
4.75
4.50
4.25
–
4.00
3.75
3.50
–
3.25
3.00
2.75
2.63
2.50
2.25
–
2.00
1.75
1.65
1.50
–
1.25
–
1.00
0.90
–
0.75
0.70
0.65
0.60
–
0.50
0.00775
0.00736
0.00698
0.00659
–
0.00620
0.00581
0.00542
–
0.00504
0.00465
0.00426
–
0.00388
0.00349
–
0.00310
0.00271
–
0.00233
–
0.00194
–
0.00155
0.00140
–
0.00116
0.00109
–
0.00093
–
0.000775
9870
9377
8883
8390
8230
7896
7403
6909
6530
6416
5922
5429
5180
4935
4422
4110
3948
3455
3260
2961
2580
2468
2050
1974
1777
1620
1481
1382
1290
1184
1029
987
7
8
9
10
F o r m o r e i n f o r m a t i o n , c o n t a c t B e l d e n Te c h n i c a l S u p p o r t + 3 1- 7 7- 3 8 7 5 - 4 1 4 • w w w. b e l d e n - e m e a . c o m
AWG
11
12
13
14
15
16
17
18
19
20