Convert femtometer to perch
Please provide values below to convert femtometer [fm] to perch [perch], or Convert perch to femtometer.
How to Convert Femtometer to Perch
1 fm = 1.98838781515947e-16 perch
Example: convert 15 fm to perch:
15 fm = 15 × 1.98838781515947e-16 perch = 2.9825817227392e-15 perch
Femtometer to Perch Conversion Table
| femtometer | perch |
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Femtometer
A femtometer is a unit of length in the metric system equal to 10^-15 meters. It is also known as a fermi.
History/Origin
The prefix "femto-" for 10^-15 was adopted by the CGPM (General Conference on Weights and Measures) in 1964. The unit is also named after the physicist Enrico Fermi.
Current Use
The femtometer is primarily used in nuclear physics to measure the size of atomic nuclei.
Perch
A perch is a unit of length equal to a rod, which is 16.5 feet.
History/Origin
The term "perch" has been used as a unit of measurement since medieval times and was often used interchangeably with "rod" and "pole."
Current Use
The perch is an obsolete unit of measurement.