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Result
1 Foot = 2.0374e-12 Astronomical Unit
Convert between metric and imperial length units with high precision. From nanoscale micrometers to astronomical light years.
| Foot (ft) | Astronomical Unit (AU) |
|---|---|
| 1 ft | 2.0374e-12 AU |
| 2 ft | 4.0749e-12 AU |
| 5 ft | 1.0187e-11 AU |
| 10 ft | 2.0374e-11 AU |
| 25 ft | 5.0936e-11 AU |
| 50 ft | 1.0187e-10 AU |
| 100 ft | 2.0374e-10 AU |
| 250 ft | 5.0936e-10 AU |
| 500 ft | 1.0187e-9 AU |
| 1000 ft | 2.0374e-9 AU |
Formula
Astronomical Unit = Foot × 2.0374e-12
Worked Example
Example: 5 Foot = 5 × 2.0374e-12 = 1.0187e-11 Astronomical Unit
To convert Foot to Astronomical Unit, multiply the Foot value by 2.0374e-12. This factor is derived from the ratio between the two units.
A foot is a unit of length in the imperial and US customary systems equal to 12 inches or exactly 0.3048 meters. It is commonly used for measuring height, room dimensions, and altitude in aviation in the United States.
History
The foot has been used as a unit of measurement since ancient civilizations, including the Egyptians, Greeks, and Romans. It was originally based on the length of a human foot. The international foot was defined in 1959 as exactly 0.3048 meters.
An astronomical unit is a unit of distance roughly equal to the average distance between the Earth and the Sun — approximately 149.6 million kilometers or 93 million miles. It is primarily used to measure distances within our solar system.
History
The astronomical unit has been used since the 17th century when astronomers first calculated the Earth-Sun distance. In 2012, the International Astronomical Union fixed the AU at exactly 149,597,870,700 meters. For example, Mars orbits at about 1.52 AU from the Sun.
Calculated using the latest NIST standards for physical constants and unit ratios.
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