Convert inch (US survey) to astronomical unit
Please provide values below to convert inch (US survey) [in (US)] to astronomical unit [AU, UA], or Convert astronomical unit to inch (US survey).
How to Convert Inch (Us Survey) to Astronomical Unit
1 in (US) = 1.69788852482644e-13 AU, UA
Example: convert 15 in (US) to AU, UA:
15 in (US) = 15 × 1.69788852482644e-13 AU, UA = 2.54683278723967e-12 AU, UA
Inch (Us Survey) to Astronomical Unit Conversion Table
| inch (US survey) | astronomical unit |
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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.
Astronomical Unit
The astronomical unit is a unit of length, now defined as exactly 149,597,870,700 meters. It is approximately the average distance between the Earth and the Sun.
History/Origin
Historically, the astronomical unit was the mean Earth-Sun distance. In 2012, the International Astronomical Union (IAU) redefined it as a fixed constant.
Current Use
The astronomical unit is used primarily for measuring distances within the Solar System or around other stars.