The term gauge is commonly used to measure diameter or thickness:

• The diameter of a wire, expressed by the American wire gauge.
• In firearms, the caliber of a gun barrel expressed as gauge (bore diameter).
• In medicine, the diameter of a needle corresponding to the Stubs Iron Wire Gauge.
• In metallurgy, the thickness of a sheet of metal.

See also Category:Wire gauges

Other uses of Gauge:

• Gauge (engineering), any of a variety of measurement devices.
• Gauge blocks, precision measuring standards (Johansson or slip gauges).
• Boost gauge, a gauge used in conjunction with turbo- super-chargers.
• Gauge (porn star), the stage name of adult film star.
• Gauge (knitting), the number of stitches in a given length.
• Gauge (mathematics), a semi norm, a concept related to convex sets.

• Gauge transformation, a member of a group of mathematical mappings used in physics. Also:
  • Gauge boson
  • Gauge theory
  • Lattice gauge theory
  • Quantum gauge theory
  • Gauge fixing
• Rail gauge, the distance between the two rails forming a railroad track. Also:
  • Standard gauge
  • Narrow gauge
  • Broad gauge
  • Loading gauge
  • standard scales used in model railroading. See also Category:Model railroad scales

See also:

• Gage

Gauge | Calibre | Kaliber