Wire Diameter Gauge Table
Gauge No.SWG (mm)SWG (Inch)BWG (mm)BWG (Inch)
08.2300.32408.6360.3400
17.6200.30007.6200.3000
27.0100.27607.2140.2840
36.4010.25206.5790.2590
45.8930.23206.0450.2380
55.3850.21205.5880.2200
64.8770.19205.1560.2030
74.4700.17604.5720.1800
84.0640.16004.1910.1650
93.6580.14403.7590.1480
103.2510.12803.4040.1340
112.9460.11603.0480.1200
122.6420.10402.7690.1090
132.3370.09202.4130.0950
142.0320.08002.1080.0830
151.8290.07201.8290.0720
161.6260.06401.6510.0650
171.4220.05601.4730.0580
181.2190.04801.2450.0490
191.0160.04001.0670.0420
200.9140.03600.8890.0350
210.8130.03200.8130.0320
220.7110.02800.7110.0280
230.6100.02400.6350.0250
240.5590.02200.5590.0220
250.5080.02000.5080.0200
260.4570.01800.4570.0180
270.4170.01640.4060.0160
280.3760.01480.3560.0140
290.3450.01360.3300.0130
300.3150.01240.3050.0120
310.2950.01160.2540.0100
320.2740.01080.2290.0090
330.2540.01000.2030.0080
340.2340.00920.1780.0070
350.2130.00840.1270.0050
360.1930.00760.1020.0040
370.1730.0068 
380.1520.0060
390.1320.0052
400.1220.0048
410.1120.0044
420.1020.0040
430.0910.0036
440.0810.0032
450.0710.0028
460.0610.0024
470.0510.0020
480.0410.0016
490.0310.0012
500.0250.0010
Sheet Metal Thickness Gauge Table
 Standard Steel Gal. Steel Aluminum Stainless Steel 
GaugeInchmmInchmmInchmmInchmm
6/0    0.5814.7320.468711.905
5/0    0.516513.11910.437511.1125
4/0    0.4611.6840.406210.3175
3/0    0.409610.40380.3759.525
2/0    0.36489.26590.34378.73
0    0.32498.25250.31257.9375
1    0.28937.34820.28127.1425
2    0.25766.5430.26566.7462
30.2391607%  0.22945.82680.256.35
40.2242569%  0.20435.18920.23445.9538
50.2092531%  0.18194.62030.21875.555
60.1943494%  0.1624.11480.20315.1587
70.1793455%  0.14433.66520.18754.7625
80.1644418%  0.12853.26390.17194.3663
90.1495380%15%3.89130.11442.90580.15623.9675
100.1345342%14%3.51030.10192.58830.14063.5712
110.1196304%12%3.13180.09072.30380.1253.175
120.1046266%11%2.75340.08082.05230.10942.7788
130.0897228%9%2.37240.0721.82880.09372.38
140.0747190%8%1.99390.06411.62810.07811.9837
150.0673171%7%1.80340.05711.45030.07031.7856
160.0598152%6%1.61290.05081.29030.06251.5875
170.0538137%6%1.46050.04531.15060.05621.4275
180.0478121%5%1.31060.04031.02360.051.27
190.0418106%5%1.15820.03590.91190.04371.11
200.035991%4%1.00580.0320.81280.03750.9525
210.032984%4%0.92960.02850.72390.03440.8738
220.029976%3%0.85340.02530.64260.03120.7925
230.026968%3%0.77720.02260.5740.02810.7137
240.023961%3%0.7010.02010.51050.0250.635
250.020953%2%0.62740.01790.45470.02190.5563
260.017945%2%0.55120.01590.40390.01870.475
270.016442%2%0.51310.01420.36070.01720.4369
280.014938%2%0.4750.01260.320.01560.3962
290.013534%2%0.43690.01130.2870.01410.3581
300.01230%2%0.39880.010.2540.01250.3175
310.010527%1%0.36070.00890.22610.01090.2769
320.009725%1%0.34040.0080.20320.01020.2591
330.00923%  0.00710.18030.00940.2388
340.008221%  0.00630.160.00860.2184
350.007519%  0.00560.14220.00780.1981
360.006717%  0.0050.1270.0070.1778
370.006416%  0.00450.11430.00660.1676
380.00615%  0.0040.10160.00620.1575