Convert petameter to fathom
Please provide values below to convert petameter [Pm] to fathom [fath], or Convert fathom to petameter.
How to Convert Petameter to Fathom
1 Pm = 546806649168854 fath
Example: convert 15 Pm to fath:
15 Pm = 15 × 546806649168854 fath = 8.20209973753281e+15 fath
Petameter to Fathom Conversion Table
| petameter | fathom |
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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.
Fathom
A fathom is a unit of length equal to 6 feet, used especially for measuring the depth of water.
History/Origin
The term "fathom" comes from the Old English word "fæthm," meaning "outstretched arms," as the distance was originally the span of a man's outstretched arms.
Current Use
The fathom is still used in nautical applications, especially in the United States, to measure water depth. It is also used in commercial fishing to measure the length of lines.