60mm

60 millimeters (mm) is a unit of length in the metric system. It equals 0.06 meters and is equivalent to about 2.36 inches. The millimeter is the standard unit for measuring small distances, thicknesses, and diameters in science, industry, and daily life.

In engineering and manufacturing, 60 mm is commonly used to specify dimensions such as part diameters, shaft sizes, bore diameters, hole centers, and nominal tolerances. It appears in mechanical drawings, machining specs, and quality-control criteria to communicate precise measurements.

In construction and piping, 60 mm can denote a nominal size for components such as hoses, fittings, or pipe sections within metric standards. While actual outer diameters may vary by material and standard, 60 mm serves as a convenient reference for design and procurement.

In artillery and military contexts, the term 60 mm refers to a class of light mortars with a 60 mm bore. These weapons are valued for portability and indirect fire support, particularly at the platoon or section level. The designation emphasizes caliber rather than a specific weapon model, and many nations have used 60 mm systems in various configurations.

In photography and optics, 60 mm is a common focal length for macro and portrait lenses on certain sensor sizes. A 60 mm macro lens, for example, is widely used for close-up work due to its working distance and magnification characteristics.

Related terms include millimeter and the broader metric system of units.