Convert millimeter to chain (US survey)
Please provide values below to convert millimeter [mm] to chain (US survey) [ch (US)], or Convert chain (US survey) to millimeter.
How to Convert Millimeter to Chain (Us Survey)
1 mm = 4.97095959595477e-05 ch (US)
Example: convert 15 mm to ch (US):
15 mm = 15 × 4.97095959595477e-05 ch (US) = 0.000745643939393215 ch (US)
Millimeter to Chain (Us Survey) Conversion Table
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Millimeter
A millimeter is a unit of length in the metric system, equal to one-thousandth of a meter.
History/Origin
The prefix "milli-" comes from the Latin word "mille," meaning thousand. The millimeter was part of the original metric system adopted in France in 1795.
Current Use
The millimeter is widely used in engineering and manufacturing for high-precision measurements. It is also a common unit in construction and for measuring small objects.
Chain (Us Survey)
A U.S. survey chain is a unit of length equal to 66 U.S. survey feet.
History/Origin
The U.S. survey chain is based on the U.S. survey foot, which was slightly different from the international foot. The use of survey units was officially phased out in 2022.
Current Use
The U.S. survey chain was used for land surveying in the United States.