# gauge

Definitions (2)
Related Terms
1. Unit of thickness of a metal sheet or wire. (1) For sheet metal, a retrogressive scale (higher numbers mean lower thickness) that starts with 10 gauge representing a thickness of 3.416 millimeters or 0.1345 inches. As the gauge number increases, the thickness drops by 10 percent. For example, a 12 gauge sheet is 2.732 millimeters thick, and a 13 gauge sheet is 2.391 millimeters thick. (2) For wire thickness there are two scales, see American wire Gauge for the first one. The second is a metric scale in which a gauge number is equal to 10 times the diameter of the wire in millimeters. For example, a 5 gauge wire is 0.5 millimeter in diameter and a 6 gauge wire is 0.6 millimeter in diameter.
Also spelled as gage.
2. Instrument with a graduated dial or scale used in measuring a dimension or quantity or for establishing mechanical accuracy.

## Use 'gauge' in a Sentence

At the machine shop, the workers were worried about getting metal sheets that were too thick, so they verified the gauge that they needed before they placed their order.
She ran out of gas in her car because she didn't realize that the gas gauge was broken and was stuck on full.
The first project required a 20 gauge sheet for the paneling, making it extremely thin - however the second project required only an 11 gauge sheet, making it comparatively thicker.

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