Use the chart below to convert standard gauge numbers in decimals of an inch for sheet steel aluminum and stainless steel.
Converting sheet metal gauge to inches.
Is different from inches there is no conversion formula.
Sheet metal gauges work opposite to what one might consider the norm.
A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.
The thickness of sheet metals is specified by gauge.
Gauge number select 00000 5 0 0000 4 0 000 3 0 00 2 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35.
These dimensions vary slightly between different materials such as stainless steel and aluminium but should be accurate enough for most everyday purposes.
Corresponds to the standard steel thickness of 0 0329 inches 0 84mm.
The gauge number 18 holds no relevance to the actual measurements.
Converting sheet metal gauge to thickness in inches.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
The table below shows the actual thickness of sheet steel in millimetres and inches compared to gauge size.
The smaller the number the thicker the material.
Hence 4 gauge material is thicker than 6 gauge material.
In this conversion calculator you can convert gauge to inches and millimeters from the known gauge number.
Sheet metal gauge to mm.
The corresponding galvanized steel thickness is 0 0366 inches 0 93mm and the corresponding aluminum thickness is 0 028 inches 0 71mm.
The story of gauge.
Gauge to thickness chart gauge stainless galvanized sheet steel aluminum fraction inches mm inches mm inches mm inches mm 30 0 0125 0 33 0 0157 0 40 0 0120 0 30 0 0100 0 25 29 0 0141 0 36 0 0172 0 44 0 0135 0 34 0 0113 0 29 28 1 64 0 0156 0 41 0 0187 0 47 0 0149 0 38 0 0126 0 32.
You can find the gauge to mm inch conversion for sheet metal by the chart below.
Most used steel sheet metals have gauge values between 30 and 7.