Millimeters to Arshins (mm to arshin)

1 millimeter equals 0.001406074241 arshins (rounded).

1 millimeter = 0.001406074241 arshins

How to convert millimeters to arshins

To convert millimeters to arshins, multiply the number of millimeters by 0.001406074241. The factor is rounded to 10 significant digits. To go the other way, multiply arshins by 711.2.

arshins = millimeters × 0.001406074241

Example: 10 millimeters = 0.01406074241 arshins.

About these units

Millimeter (mm)

Metric (SI)Current unit

One thousandth of a meter. Used in engineering, manufacturing and rainfall measurement.

Carl Friedrich Gauss put the millimeter at the base of his 1832 proposal for absolute units, pairing it with the milligram and the second, although the centimeter-based CGS system later won out among scientists. The name combines the metric prefix milli-, from the Latin for one thousand, with the meter. Since 1983 a millimeter has been tied to the speed of light: it is the distance light covers in 1/299,792,458,000 of a second.

Millimeters are the language of fine mechanical work. Standard rulers are divided into them, digital calipers commonly read to 0.01 mm, and mechanical pencil leads come in 0.5 and 0.7 mm. Copy paper is about 0.1 mm thick, and a thin hair, at 0.02 to 0.04 mm across, is close to the smallest thing the naked eye can see. A wave with a frequency of 300 GHz has a wavelength of 1 mm. An inch is exactly 25.4 mm. One trap for readers in the United States is that mil there traditionally means a thousandth of an inch, not a millimeter.

1 millimeter = 0.001 meters (exactly).

Sources: Wikipedia: Millimetre; Wikipedia: Centimetre-gram-second system of units; NIST Guide to the SI, Appendix B.8: conversion factors

Arshin (arshin)

Russian (Imperial)Historical unit (no longer in standard use)

Exactly 28 inches (71.12 cm). The standard Russian cloth and trade measure until metrication in 1918.

Arshin was the working yardstick of Russian trade, used above all for cloth, ribbon and timber. The word reached Russian from the Turkish world, where a similar unit, the arşın, was the distance from the shoulder to the fingertips, and the Russian version was originally reckoned the same way, as the length of a man's arm. The name also came to mean the measuring rod itself.

Sources from the 16th century describe a Russian arshin of about 27 inches. Under Peter the Great in the 18th century it was fixed at exactly 28 English inches, which is the 71.12 cm used here. Because that definition is tied to the inch, the metric value follows from the 2.54 cm inch and carries no real uncertainty.

Sixteen vershoks make one arshin, and three arshins make a sazhen. Shopkeepers across the empire kept to it until metric weights and measures became compulsory in 1918, and a metre today is a little over 1.4 arshins.

1 arshin = 0.7112 meters (exactly).

Sources: Wikipedia: Arshin (length); Wikipedia: Obsolete Russian units of measurement

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