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Sheet metal gauge.
Pick a material and gauge to get thickness and weight per square foot, or browse the full chart. Steel, stainless, and aluminum each use a different gauge standard, so the same gauge number is a different thickness in each metal.
Lookup.
Values update as you change material or gauge.
Thickness0.0598 in
Thickness (metric)1.519 mm
Weight per sq ft2.501 lb
Weight for entered area2.50 lb (1.13 kg)
Gauge standard usedManufacturers' Standard
Why the standards differ: steel uses the Manufacturers' Standard Gauge, stainless uses its own decimal chart, and aluminum uses Brown & Sharpe (AWG). Always confirm thickness with your supplier before releasing drawings; mills quote to their own tolerance bands.
Full chart.
Steel (Manufacturers' Standard Gauge). Selected row is highlighted.
| Gauge | Thickness (in) | Thickness (mm) | Weight (lb / sq ft) |
|---|
Disclaimer: These tools were built at my desk to keep the answers I need in one place. I’m sharing them in the hope that they make your design process a little easier too. The math is checked against published standards and real-world experience, but specs change and materials vary. If you spot anything that seems off, please email me at donna@donnakadell.design and I’ll take a look.
Enjoy.