Gauge To Mm Calculator

Easily convert between gauge numbers and thickness measurements in mm, in, or other units with the Gauge to MM Calculator.

Supports steel and aluminum for precise calculations in metalworking and fabrication tasks.

Input either the gauge number or the thickness (with material type) to determine the missing value.

The Gauge to MM Calculator simplifies the process of converting gauge numbers to thickness in millimeters or vice versa. It supports common materials like steel and aluminum, ensuring accurate conversions based on industry standards.

If you’re working in metal fabrication or construction, this tool is an essential resource for precise measurements.

Formula

For Steel

Gauge to Thickness (mm):

\text{Thickness (mm)} = 11.684 – (0.934 \times \text{Gauge Number})

Thickness to Gauge:

\text{Gauge Number} = \frac{11.684 – \text{Thickness (mm)}}{0.934}

For Aluminum

Gauge to Thickness (mm):

\text{Thickness (mm)} = 12.7 – (1.27 \times \text{Gauge Number})

Thickness to Gauge:

\text{Gauge Number} = \frac{12.7 – \text{Thickness (mm)}}{1.27}

Variable	Description	Units
Gauge Number	Numerical gauge for material	Gauge
Thickness	Material thickness	mm, in, cm, ft
Material Type	Steel or Aluminum	–

Solved Calculations

Example 1: Convert Gauge to Thickness for Steel
Find the thickness in millimeters for a 10-gauge steel sheet.

Step	Value	Explanation
Step 1	Gauge = 10, Material = Steel	Input the gauge and material type.
Step 2: Formula	Thickness = $11.684 – (0.934 \times \t$	Use the formula for steel.
Step 3: Calculate	$11.684 – (0.934 \times 10) = 2.344 \,$	Substitute the gauge and solve.
Result	$\mathbf{2.344 \, \tex$	The thickness is 2.344 mm.

Example 2: Convert Thickness to Gauge for Aluminum
Determine the gauge number for an aluminum sheet with a thickness of 3 mm.

More Calculators

Step	Value	Explanation
Step 1	Thickness = 3 mm, Material = Aluminum	Input the thickness and material type.
Step 2: Formula	Gauge = $\frac{12.7 – \text{Thickness}}{$	Use the formula for aluminum.
Step 3: Calculate	$\frac{12.7 – 3}{1.27} = 7.637 \, \$	Substitute the thickness and solve.
Result	$\mathbf{7.637 \, \text$	The gauge number is 7.637.