Convert chain (US survey) to millimeter
Please provide values below to convert chain (US survey) [ch (US)] to millimeter [mm], or Convert millimeter to chain (US survey).
How to Convert Chain (Us Survey) to Millimeter
1 ch (US) = 20116.8402337 mm
Example: convert 15 ch (US) to mm:
15 ch (US) = 15 × 20116.8402337 mm = 301752.6035055 mm
Chain (Us Survey) to Millimeter Conversion Table
| chain (US survey) | millimeter |
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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.
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.