AWG standard wire gauge and current comparison table

The following table compares AWG with the corresponding outside diameter, cross-sectional area, resistance value, and current.

Taking a single strand wire diameter of 0.0016 inches as 46AWG and a diameter of 0.46 inches as 4/0 AWG, divide the range between them so that the sizes are in a proportional series.

You can see from the comparison table that the larger the AWG value, the smaller the outer diameter and current.

Why does the diameter of the wire decrease as the AWG value increases? If we explain in this way, then you will understand that the same number of AWG wires can be installed in a fixed cross-sectional area. For example, a 20# AWG wire can accommodate 20 cores, while a 30# AWG wire can accommodate 30 cores. Of course, the unit diameter of the 30# AWG wire is smaller.

28AWG 20-core, 30-core, 40-core, 50-core wire
28AWG 20-core, 30-core, 40-core, 50-core wire
AWGOuter Diameter (mm)Outside Diameter ( inch)Cross Sectional Area (mm²)Resistance Value (w/km)Normal Current (A)Maximum Current (A)
4/011.680.46107.220.17423.2482.566
3/010.40.409685.010.21335.544382.614
2/09.270.364867.430.26266.158303.495
1/08.250.324953.490.33211.12240.736
17.350.289342.410.42167.389190.87
26.540.257633.620.53132.716151.333
35.830.229426.670.66105.249120.013
45.190.204321.150.8483.47795.187
54.620.181916.771.0666.17575.458
64.110.16213.31.3352.48859.851
73.670.144310.551.6841.64547.487
83.260.12858.372.1133.02537.657
92.910.11446.632.6726.17529.846
102.590.10195.263.3620.76723.68
112.30.09074.174.2416.45318.761
122.050.08083.3325.3113.05714.889
131.820.0722.6276.6910.36811.822
141.630.06412.0758.458.2189.37
151.450.05711.64610.66.5217.436
161.290.05081.31813.55.1615.885
171.150.04531.02616.34.1044.68
181.020.04030.810721.43.2483.704
190.9120.03590.566726.92.5782.939
200.8130.0320.518933.92.0482.335
210.7240.02850.411642.71.6251.852
220.6430.02530.324754.31.281.46
230.5740.02260.258848.51.0221.165
240.5110.02010.204789.40.8080.921
250.440.01790.162479.60.6410.731
260.4040.01590.12811430.5060.577
270.3610.01420.10211280.4030.46
280.320.01260.08042270.3180.362
290.2870.01130.06472890.2550.291
300.2540.010.05073610.20.228
310.2260.00890.04013210.1580.181
320.2030.0080.03165830.1280.146
330.180.00710.02559440.1010.115
340.160.00630.02019560.0790.091
350.1420.00560.01691,2000.0630.072
360.1270.0050.01271,5300.050.057
370.1140.00450.00981,3770.0410.046
380.1020.0040.00812,4000.0320.036
390.0890.00350.00622,1000.0250.028
400.0790.00310.00494,0800.0190.022
410.0710.00280.0043,6850.0160.018
420.0640.00250.00326,3000.0130.014
430.0560.00220.00255,5440.010.011
440.0510.0020.00210,2000.0080.009
450.0460.00180.00169,1800.0060.007
460.0410.00160.001316,3000.0050.006

You may also want to know: common cable specifications

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