Convert reed to Earth's polar radius
Please provide values below to convert reed [reed] to Earth's polar radius [R_p], or Convert Earth's polar radius to reed.
How to Convert Reed to Earth's Polar Radius
1 reed = 4.31541118882358e-07 R_p
Example: convert 15 reed to R_p:
15 reed = 15 × 4.31541118882358e-07 R_p = 6.47311678323536e-06 R_p
Reed to Earth's Polar Radius Conversion Table
| reed | Earth's polar radius |
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Reed
A reed is an ancient unit of length, typically about 6 cubits or around 9 feet.
History/Origin
The reed was a common unit of measurement in ancient Mesopotamia and the surrounding regions.
Current Use
The reed is an obsolete unit of measurement.
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.