Convert rod to Earth's equatorial radius
Please provide values below to convert rod [rd] to Earth's equatorial radius [R_e], or Convert Earth's equatorial radius to rod.
How to Convert Rod to Earth's Equatorial Radius
1 rd = 7.8850611079693e-07 R_e
Example: convert 15 rd to R_e:
15 rd = 15 × 7.8850611079693e-07 R_e = 1.1827591661954e-05 R_e
Rod to Earth's Equatorial Radius Conversion Table
| rod | Earth's equatorial radius |
|---|
Rod
A rod, also known as a perch or pole, is a unit of length equal to 16.5 feet, or 5.5 yards.
History/Origin
The rod has been used as a unit of measurement in England since at least the 13th century. It was a convenient length for measuring land.
Current Use
The rod is now an archaic unit of measurement, though it may still be encountered in old land deeds.
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.