Convert mile (US survey) to femtometer
Please provide values below to convert mile (US survey) [mi (survey)] to femtometer [fm], or Convert femtometer to mile (US survey).
How to Convert Mile (Us Survey) to Femtometer
1 mi (survey) = 1.6093472186944e+18 fm
Example: convert 15 mi (survey) to fm:
15 mi (survey) = 15 × 1.6093472186944e+18 fm = 2.4140208280416e+19 fm
Mile (Us Survey) to Femtometer Conversion Table
| mile (US survey) | femtometer |
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Mile (Us Survey)
The U.S. survey mile is a unit of length equal to 5,280 U.S. survey feet.
History/Origin
The U.S. survey foot was defined such that 1 meter is exactly 39.37 inches. This made the U.S. survey mile slightly longer than the international mile. The use of the survey foot was officially phased out in 2022.
Current Use
The U.S. survey mile was used for land surveying in the United States.
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.