Convert perch to Earth's equatorial radius
Please provide values below to convert perch [perch] to Earth's equatorial radius [R_e], or Convert Earth's equatorial radius to perch.
How to Convert Perch to Earth's Equatorial Radius
1 perch = 7.8850611079693e-07 R_e
Example: convert 15 perch to R_e:
15 perch = 15 × 7.8850611079693e-07 R_e = 1.1827591661954e-05 R_e
Perch to Earth's Equatorial Radius Conversion Table
| perch | Earth's equatorial radius |
|---|
Perch
A perch is a unit of length equal to a rod, which is 16.5 feet.
History/Origin
The term "perch" has been used as a unit of measurement since medieval times and was often used interchangeably with "rod" and "pole."
Current Use
The perch is an obsolete unit of measurement.
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.