Physics

Wire and Sheet Gauge Conversion Chart

Sheet sheet or wire thickness is specified by gauge. The table below shows the actual thickness of sheet steel and wire in millimeters and inches compared to gauge sizes. These dimensions vary slightly between different materials such as stainless steel and aluminum – but should be accurate enough for most everyday purposes.

Gauge NoInchMetric
00.324″8.2mm
10.300″7.6mm
20.276″7.0mm
30.252″6.4mm
40.232″5.9mm
50.212″5.4mm
0.192″4.9mm
70.176″4.5mm
80.160″4.1mm
90.144″3.7mm
10 0.128″3.2mm
110.116″2.9mm
120.104″2.6mm
130.092″2.3mm
140.080″2.0mm
150.072″1.8mm
160.064″1.6mm
170.056″1.4mm
180.048″1.2mm
190.040″1.0mm
200.036″0.9mm
210.032″0.8mm
220.028″0.7mm
230.024″0.6mm
250.020″0.5mm
260.018″0.45mm
270.0164″0.42mm
280.0148″0.37mm
290.0136″0.34mm
300.0124″0.31mm
310.0116″0.29mm
320.0108″0.27mm
330.0100″0.25mm
340.0092″0.23mm
350.0084″0.21mm
360.0076″0.19mm
370.0068″0.17mm
380.0060″0.15mm
390.0052″0.13mm
400.0048″0.12mm

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