CableDataSheet, Cable and Wire Technical Consulting Service

American and British Wire Gauges

American and British Wire Gauges

Data originally posted by Enginering Zones.

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"

  source : You are not allowed to view links. Register or Login