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Sheet Metal Gauge Converter

Convert between sheet metal gauge numbers and thickness in inches or millimeters.

Sheet Metal Gauge Converter

Convert a sheet metal gauge number to thickness in inches or millimeters for steel, galvanized steel, aluminum, and stainless steel using standard gauge tables.

Formula

Lookup from standard gauge tables

Step-by-step

  1. Select material type
  2. Enter gauge number (0–38)
  3. Read thickness in inches and millimeters

Example

16 gauge standard steel = 0.0598 in (1.519 mm).

FAQ

Why do different materials have different thicknesses for the same gauge?+

Gauge systems originated separately for each material, so 16 gauge steel is thicker than 16 gauge aluminum.

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