General Engineering Reviews | Engineering Applications and Design
| 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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