Convert Earth's polar radius to inch (US survey)
Please provide values below to convert Earth's polar radius [R_p] to inch (US survey) [in (US)], or Convert inch (US survey) to Earth's polar radius.
How to Convert Earth's Polar Radius to Inch (Us Survey)
1 R_p = 250265338.052001 in (US)
Example: convert 15 R_p to in (US):
15 R_p = 15 × 250265338.052001 in (US) = 3753980070.78002 in (US)
Earth's Polar Radius to Inch (Us Survey) Conversion Table
| Earth's polar radius | inch (US survey) |
|---|
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.
Inch (Us Survey)
The U.S. survey inch is a unit of length equal to 1/12 of a U.S. survey foot.
History/Origin
The U.S. survey inch is based on the U.S. survey foot, which was defined such that 1 meter is exactly 39.37 inches. The use of survey units was officially phased out in 2022.
Current Use
The U.S. survey inch was used for land surveying in the United States.