Convert inch (US survey) to femtometer
Please provide values below to convert inch (US survey) [in (US)] to femtometer [fm], or Convert femtometer to inch (US survey).
How to Convert Inch (Us Survey) to Femtometer
1 in (US) = 25400050800000 fm
Example: convert 15 in (US) to fm:
15 in (US) = 15 × 25400050800000 fm = 381000762000000 fm
Inch (Us Survey) to Femtometer Conversion Table
| inch (US survey) | femtometer |
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Inch (Us Survey)
The U.S. survey inch is a unit of length equal to 1/12 of a U.S. survey foot.
History/Origin
The U.S. survey inch is based on the U.S. survey foot, which was defined such that 1 meter is exactly 39.37 inches. The use of survey units was officially phased out in 2022.
Current Use
The U.S. survey inch 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.