Convert foot to Earth's equatorial radius
Please provide values below to convert foot [ft] to Earth's equatorial radius [R_e], or Convert Earth's equatorial radius to foot.
How to Convert Foot to Earth's Equatorial Radius
1 ft = 4.77882491392079e-08 R_e
Example: convert 15 ft to R_e:
15 ft = 15 × 4.77882491392079e-08 R_e = 7.16823737088118e-07 R_e
Foot to Earth's Equatorial Radius Conversion Table
| foot | Earth's equatorial radius |
|---|
Foot
A foot is a unit of length in the imperial and US customary systems of measurement. A foot was defined as exactly 0.3048 meters in 1959. One foot contains 12 inches, and one yard is comprised of three feet.
History/Origin
The foot has been used as a unit of measurement in many different cultures, including Ancient Greece and Rome, and the length has varied from country to country and even from city to city. The name is said to be based on the average length of a man's foot.
Current Use
The foot is a primary unit of length in the United States, the United Kingdom, and Canada for many everyday applications. In the US, feet and inches are commonly used to measure height, shorter distances, field length (sometimes in the form of yards), etc.
Earth's Equatorial Radius
The Earth's equatorial radius is the distance from the center of the Earth to the equator, approximately 6,378.1 kilometers.
History/Origin
The size and shape of the Earth have been a subject of study since ancient times. Modern measurements are made using satellite geodesy.
Current Use
The Earth's equatorial radius is a fundamental parameter in geodesy, geophysics, and astronomy. It is used in cartography and for defining the shape of the Earth.