Convert a.u. of length to inch (US survey)
Please provide values below to convert a.u. of length [a.u., b] to inch (US survey) [in (US)], or Convert inch (US survey) to a.u. of length.
How to Convert A.u. Of Length to Inch (Us Survey)
1 a.u., b = 2.08337082932133e-09 in (US)
Example: convert 15 a.u., b to in (US):
15 a.u., b = 15 × 2.08337082932133e-09 in (US) = 3.125056243982e-08 in (US)
A.u. Of Length to Inch (Us Survey) Conversion Table
| a.u. of length | inch (US survey) |
|---|
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.
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.