Convert Earth's polar radius to Earth's equatorial radius
Please provide values below to convert Earth's polar radius [R_p] to Earth's equatorial radius [R_e], or Convert Earth's equatorial radius to Earth's polar radius.
How to Convert Earth's Polar Radius to Earth's Equatorial Radius
1 R_p = 0.996647187101814 R_e
Example: convert 15 R_p to R_e:
15 R_p = 15 × 0.996647187101814 R_e = 14.9497078065272 R_e
Earth's Polar Radius to Earth's Equatorial Radius Conversion Table
| Earth's polar radius | Earth's equatorial radius |
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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.
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.