Convert a.u. of length to foot (US survey)
Please provide values below to convert a.u. of length [a.u., b] to foot (US survey) [ft (US)], or Convert foot (US survey) to a.u. of length.
How to Convert A.u. Of Length to Foot (Us Survey)
1 a.u., b = 1.73614235776778e-10 ft (US)
Example: convert 15 a.u., b to ft (US):
15 a.u., b = 15 × 1.73614235776778e-10 ft (US) = 2.60421353665167e-09 ft (US)
A.u. Of Length to Foot (Us Survey) Conversion Table
| a.u. of length | foot (US survey) |
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A.u. Of Length
The atomic unit of length, also known as the Bohr radius (a₀), is approximately 5.29 x 10⁻¹¹ meters.
History/Origin
The Bohr radius is named after Niels Bohr, who proposed a model of the atom in 1913 where the electron orbits the nucleus at specific distances. The Bohr radius is the most probable distance between the proton and electron in a hydrogen atom in its ground state.
Current Use
The atomic unit of length is used in atomic physics to simplify calculations and equations.
Foot (Us Survey)
The U.S. survey foot was a unit of length defined as exactly 1200/3937 meters.
History/Origin
The U.S. survey foot was used for land surveying in the United States for most of the 20th century. Its use was officially phased out in 2022 to standardize with the international foot.
Current Use
The U.S. survey foot is now an obsolete unit.