Sheet Steel Gauge Conversion Chart
| Gauge No | Inch | Metric |
|---|---|---|
| 0 | 0.324" | 8.2mm |
| 1 | 0.300" | 7.6mm |
| 2 | 0.276" | 7.0mm |
| 3 | 0.252" | 6.4mm |
| 4 | 0.232" | 5.9mm |
| 5 | 0.212" | 5.4mm |
| 6 | 0.192" | 4.9mm |
| 7 | 0.176" | 4.5mm |
| 8 | 0.160" | 4.1mm |
| 9 | 0.144" | 3.7mm |
| 10 | 0.128" | 3.2mm |
| 11 | 0.116" | 2.9mm |
| 12 | 0.104" | 2.6mm |
| 13 | 0.092" | 2.3mm |
| 14 | 0.080" | 2.0mm |
| 15 | 0.072" | 1.8mm |
| 16 | 0.064" | 1.6mm |
| 17 | 0.056" | 1.4mm |
| 18 | 0.048" | 1.2mm |
| 19 | 0.040" | 1.0mm |
| 20 | 0.036" | 0.9mm |
| 21 | 0.032" | 0.8mm |
| 22 | 0.028" | 0.7mm |
| 23 | 0.024" | 0.6mm |
| 25 | 0.020" | 0.5mm |
| 26 | 0.018" | 0.45mm |
| 27 | 0.0164" | 0.42mm |
| 28 | 0.0148" | 0.37mm |
| 29 | 0.0136" | 0.34mm |
| 30 | 0.0124" | 0.31mm |
| 31 | 0.0116" | 0.29mm |
| 32 | 0.0108" | 0.27mm |
| 33 | 0.0100" | 0.25mm |
| 34 | 0.0092" | 0.23mm |
| 35 | 0.0084" | 0.21mm |
| 36 | 0.0076" | 0.19mm |
| 37 | 0.0068" | 0.17mm |
| 38 | 0.0060" | 0.15mm |
| 39 | 0.0052" | 0.13mm |
| 40 | 0.0048" | 0.12mm |
