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Gauge (instrument), any of a variety of measuring instruments •
Gauge (firearms) •
Wire gauge, a measure of the size of a wire •
American wire gauge, a common measure of nonferrous wire diameter, especially electrical •
Birmingham gauge, a measure of ferrous wire and hypodermic needle diameter •
Jewelry wire gauge, the size of wire used in jewelry making •
Sheet metal gauge, thickness of metal in sheet form •
Film gauge, a physical property of film stock which defines its size • The size of objects used in
stretching (body piercing), especially earrings •
Gauge block, a metal or ceramic block of precisely known dimension, used in measuring •
Sight glass, also known as a water gauge, for measuring liquid level heights in storage tanks and pressure vessels •
Boost gauge, a gauge used in conjunction with turbo-super-chargers • Pressure gauge or vacuum gauge, see
pressure measurement •
Gauge pressure, pressure above ambient pressure •
Stream gauge, for measuring height and discharge of a river or stream •
Air core gauge, a type of rotary actuator often used in automotive instruments • Gauger, one who gauges or measures, typically
dutiable commodities, such as wine, landed from ships at docks == Sizes ==