Convert exameter to chain (US survey)
Please provide values below to convert exameter [Em] to chain (US survey) [ch (US)], or Convert chain (US survey) to exameter.
How to Convert Exameter to Chain (Us Survey)
1 Em = 4.97095959595477e+16 ch (US)
Example: convert 15 Em to ch (US):
15 Em = 15 × 4.97095959595477e+16 ch (US) = 7.45643939393215e+17 ch (US)
Exameter to Chain (Us Survey) Conversion Table
| exameter | chain (US survey) |
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Exameter
An exameter is a unit of length in the metric system equal to 10^18 meters.
History/Origin
The prefix "exa-" for 10^18 was adopted by the CGPM (General Conference on Weights and Measures) in 1975.
Current Use
The exameter is used in astronomy to measure the vast distances between galaxies.
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.