Wire Gage (British and American)

General Engineering Reviews | Engineering Applications and Design

Wire guage including Washburn and Moen, British Imperial Standard, Birmingham or St ubs, American AWG Brown and sharp.

Gauge Washburn & Moen British Imperial Standard (S.W.G.) Birmingham or Stubs American (A.W.G.) or Brown & Sharpe
7/0 .4900" .500" --- ---
6/0 .4615" .464" --- .5800"
5/0 .4305" .432" .500" .5165"
4/0 .3938" .400" .454" .4600"
3/0 .3625" .372" .425" .4096"
2/0 .3310" .348" .380" .3648"
1/0 .3065" .324" .340" .3249"
1 .2830" .300" .300" .2893"
2 .2625" .276" .284" .2576"
3 .2437" .252" .259" .2294"
4 .2253" .232" .238" .2043"
5 .2070" .212" .220" .1819"
6 .1920" .192" .203" .1620"
7 .1770" .176" .180" .1442"
8 .1620" .160" .165" .1284"
9 .1483" .144" .148" .1144"
10 .1350" .128" .134" .1018"
11 .1205" .116" .120" .0907"
12 .1055" .104" .109" .0808"
13 .0915" .092" .095" .0719"
14 .0800" .080" .083" .0640"
15 .0720" .072" .072" .0570"
16 .0625" .064" .065" .0508"
17 .0540" .056" .058" .0452"
18 .0475" .048" .049" .0403"
19 .0410" .040" .042" .0358"
20 .0348" .036" .035" .0319"
Gauge Number Washburn & Moen British Imperial Standard (S.W.G.) Birmingham or Stubs American (A.W.G.) or Brown & Sharpe
21 .0317" .032" .032" .0284"
22 .0286" .028" .028" .0253"
23 .0258" .024" .025" .0225"
24 .0230" .022" .022" .0201"
25 .0204" .020" .020" .0179"
26 .0181" .018" .018" .0159"
27 .0173" .0164" .016" .0141"
28 .0162" .0148" .014" .0126"
29 .0150" .0136" .013" .0112"
30 .0140" .0124" .012" .0100"
31 .0132" .0116" .010" .0089"
32 .0128" .0108" .009" .0079"
33 .0118" .0100" .008" .0070"
34 .0104" .0092" .007" .0063"
35 .0095" .0084" .005" .0056"
36 .0090" .0076" .004" .0050"
37 .0085" .0068" --- .0044"
38 .0080" .0060" --- .0039"
39 .0075" .0052" --- .0035"
40 .0070" .0048" --- .0031"
41 .0066" .0044" --- .00280"
42 .0062" .0040" --- .00249"
43 .0060" .0036" --- .00222"
44 .0058" .0032" --- .00198"
45 .0055" .0028" -- .00176"
46 .0052" .0024" --- .00157"
47 .0050" .0020" --- .00140"
48 .0048" .0016" --- .00124"
49 .0046" .0012" -- .00111"
50 .0044" .0010" -- .00099

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