Convert petameter to chain (US survey)
Please provide values below to convert petameter [Pm] to chain (US survey) [ch (US)], or Convert chain (US survey) to petameter.
How to Convert Petameter to Chain (Us Survey)
1 Pm = 49709595959547.7 ch (US)
Example: convert 15 Pm to ch (US):
15 Pm = 15 × 49709595959547.7 ch (US) = 745643939393215 ch (US)
Petameter to Chain (Us Survey) Conversion Table
| petameter | chain (US survey) |
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Petameter
A petameter is a unit of length in the metric system equal to 10^15 meters.
History/Origin
The prefix "peta-" for 10^15 was adopted by the CGPM (General Conference on Weights and Measures) in 1975.
Current Use
The petameter is used for measuring distances on a galactic scale, such as the size of the Milky Way galaxy.
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.