Wire Gauge

Table 5: AWG and B&S Diameter and Cross Sectional Areas

AWG or B&S Number
Diameter - inches
Diameter - mm
Cross Section Area - Sq. in.
Cross Section Area - Sq. mm.
Circular Mills
00000.460011.680.1662107.2211600
0000.409610.400.131885.03167800
000.36489.2660.104567.43133100
00.32498.2520.0828953.48105500
10.28937.3480.0657342.4183690
20.25766.5430.0512333.6366370
30.22945.8270.0413426.2752630
40.20435.1890.0327821.1541740
50.18794.6200.0260016.7733100
60.16204.1150.0206213.3026250
70.14433.6650.0163510.5520820
80.12853.2640.012978.36616510
90.11442.9060.010286.63413090
100.10192.5880.0081565.26110380
110.090742.3050.0064674.1728234
120.080812.0530.0051293.3096530
130.071961.8280.0040672.6245178
140.064081.6280.0032252.0814107
150.057071.4500.0025581.6503257
160.050821.2910.0020281.3092583
170.045261.1500.0016091.0382048
180.040301.0240.0012760.82311600
190.035890.91160.0010120.65271288
200.031960.81180.00080230.51761022
210.028460.72290.00063630.4105810.1
220.025350.64390.00050460.3256642.4
230.022570.57330.00040010.2582509.5
240.020100.51050.00031730.2047404.0
250.017900.45470.00025170.1624320.4
260.015840.40490.00019960.1288254.1
270.014200.36070.00015830.1021201.5
280.012640.32110.00012550.08098159.8
290.011260.28600.000099540.06422126.7
300.010030.25480.000078940.05093100.5
310.0089280.22680.000062600.0403979.7
320.0079500.20190.000049640.0302363.21
330.0070800.17960.000039440.0254550.22
340.0063050.16010.000031220.0201439.75
350.0056150.14260.000024760.0159731.52
360.0050000.12700.000019630.0126725.00
370.0044530.11310.000015570.0100519.83
380.0039650.10070.000012350.0079715.72
390.0035310.08970.000009790.0063212.47
400.0031450.07990.000007770.005019.888
410.0028000.07110.000006160.003977.842
420.0024940.06330.000004880.003156.219
430.0022210.05640.000003870.002504.932
440.0019780.05020.000003070.001983.911
450.0017610.04470.000002440.001573.102
460.0015680.03980.000001930.001252.460
470.0013970.03550.000001530.000991.951
480.0012440.03160.000001220.000781.547
490.0011070.02810.000000960.000621.227
500.0009860.02510.000000760.000490.973

Note: This table is for reference only and complete information should be obtained from the appropriate agency.