Convert Inch [in] to...

Unit system Imperial/US
Unit of length
Symbol in
Unit conversions
1 in in ... ... is equal to ...
SI units 25.4 mm
Imperial/US unit(s) 1/36 yd
1/12 ft

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Metric Conversion
Kilometre [km]
Hectometre [hm]
Decametre [dam]
Metre [m]
Decimetre [dm]
Centimetre [cm]
Millimetre [mm]
Micrometre [µm]
Nanometre [nm]
Angstrom [Å]
British/Imperial Conversion
Mile [mi]
Rod [rd]
Yard [yd]
Foot [ft]
Inch [in]
Mil [mil]
Thou [thou]
Nautical Conversion
Sea mile
Astronomical Conversion
Parsec [pc]
Light Year
Astronomical Unit [AE]
Light Minute
Light Second

An inch is a unit of length in the imperial and United States customary systems of measurement now formally equal to 1/36 yard but usually understood as 1/12 of a foot. Traditional standards for the exact length of an inch have varied in the past, but since the adoption of the international yard during the 1950s and 1960s it has been based on the metric system and defined as exactly 2.54 cm.

The inch is a commonly used customary unit of length in the United States, Canada, and the United Kingdom. It is also used in Japan for electronic parts, especially display screens. For the United Kingdom, guidance on public sector use states that, since 1 October 1995, without time limit, the inch (along with the foot) is to be used as a primary unit for road signs and related measurements of distance (with the possible exception of clearance heights and widths) and may continue to be used as a secondary or supplementary indication following a metric measurement for other purposes.

This article uses material from the Wikipedia article "Inch", which is released under the Creative Commons Attribution-Share-Alike License 3.0.