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swg standard wire gauge, swg to mm, bwg to mm

Apr. 24 , 2024

Wire mesh is woven or welded from wire. Wire diameter is a premier factor in determining the wire mesh specification. There are normally fours ways to identify the wire diameters: BWG, SWG or by mm or by inch. 


As the same gauge number in different countries refers to different wire diameters, t his results in the need for repeated confirmation to determine the wire diameter. So nowadays, we usually use wire diameter in mm or in inch instead of gauge number to specify our products.


The SWG (Standard Wire Gauge) and BWG (Birmingham Wire Gauge),  are measurement standards used to determine the thickness or diameter of wires, including stainless steel wire, galvanized wire, iron wire, etc. 

swg gauge chart, bwg gauge chart, and swg to mm, bwg to mm, swg and bwg to inch, comparisons table:

Wire Gauge       SWG Diameter             BWG Diameter      
inchesmminchesmm
00.3248.230 0.348.636 
10.37.620 0.37.620 
20.2767.010 0.2847.214 
30.2526.401 0.2596.579 
40.2325.893 0.2386.045 
50.2125.385 0.225.588 
60.1924.877 0.2035.156 
70.1764.470 0.184.572 
80.164.064 0.1654.191 
90.1443.658 0.1483.759 
100.1283.251 0.1343.404 
110.1162.946 0.123.048 
120.1042.642 0.1092.769 
130.0922.337 0.0952.413 
140.082.032 0.0832.108 
150.0721.829 0.0721.829 
160.0641.626 0.0651.651 
170.0561.422 0.0581.473 
180.0481.219 0.0491.245 
190.041.016 0.0421.067 
200.0360.914 0.0350.889 
210.0320.813 0.0320.813 
220.0280.711 0.0280.711 
230.0240.610 0.0250.635 
240.0220.559 0.0220.559 
250.020.508 0.020.508 
260.0180.457 0.0180.457
270.01640.417 0.0160.406
280.01480.376 0.0140.356
290.01360.345 0.0130.330 
300.01240.315 0.0120.305
310.01160.295 0.010.254
320.01080.274 0.0090.229
330.010.254 0.0080.203
340.00920.234 0.0070.178
350.00840.213 0.0050.127
360.00760.193 0.0040.102
370.00680.173 **
380.0060.152 **
390.00520.132 **
400.00480.122 **
410.00440.112 **
420.0040.102 **
430.00360.091 **
440.00320.081 **
450.00280.071 **
460.00240.061 **
470.0020.051 **
480.00160.041 **
490.00120.031 **
500.0010.025 **



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