Convert Earth's equatorial radius to Earth's polar radius
Please provide values below to convert Earth's equatorial radius [R_e] to Earth's polar radius [R_p], or Convert Earth's polar radius to Earth's equatorial radius.
How to Convert Earth's Equatorial Radius to Earth's Polar Radius
1 R_e = 1.00336409206947 R_p
Example: convert 15 R_e to R_p:
15 R_e = 15 × 1.00336409206947 R_p = 15.050461381042 R_p
Earth's Equatorial Radius to Earth's Polar Radius Conversion Table
| Earth's equatorial radius | Earth's polar radius |
|---|
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.
Earth's Polar Radius
The Earth's polar radius is the distance from the center of the Earth to the North or South Pole, approximately 6,356.8 kilometers.
History/Origin
The fact that the Earth is an oblate spheroid, flattened at the poles, has been known since the 18th century. Modern measurements are made with high precision.
Current Use
The Earth's polar radius is a key parameter in geodesy and is used to define the Earth's shape and gravitational field.