Convert foot (US survey) to astronomical unit

Please provide values below to convert foot (US survey) [ft (US)] to astronomical unit [AU, UA], or Convert astronomical unit to foot (US survey).




How to Convert Foot (Us Survey) to Astronomical Unit

1 ft (US) = 2.03746622979173e-12 AU, UA

Example: convert 15 ft (US) to AU, UA:
15 ft (US) = 15 Γ— 2.03746622979173e-12 AU, UA = 3.0561993446876e-11 AU, UA


Foot (Us Survey) to Astronomical Unit Conversion Table

foot (US survey) astronomical unit

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.


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.



Convert foot (US survey) To Other Length Units