Convert Earth's polar radius to rod (US survey)
Please provide values below to convert Earth's polar radius [R_p] to rod (US survey) [rd (US)], or Convert rod (US survey) to Earth's polar radius.
1 R_p = 1263966.3538 rd (US). To convert Earth's polar radius to rod (US survey), multiply the value by 1263966.3538; to go the other way, divide by it (1 rd (US) = 7.91160300268e-07 R_p). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 R_p = 1263966.3538 rd (US)
- 1 rd (US) = 7.91160300268e-07 R_p
- 10 R_p = 12639663.538 rd (US)
- 100 R_p = 126396635.38 rd (US)
How to Convert Earth's Polar Radius to Rod (Us Survey)
1 R_p = 1263966.35379799 rd (US)
Example: convert 15 R_p to rd (US):
15 R_p = 15 × 1263966.35379799 rd (US) = 18959495.3069698 rd (US)
Earth's Polar Radius to Rod (Us Survey) Conversion Table
| Earth's polar radius | rod (US survey) |
|---|---|
| 1 R_p | 1263966.3538 rd (US) |
| 2 R_p | 2527932.7076 rd (US) |
| 3 R_p | 3791899.06139 rd (US) |
| 5 R_p | 6319831.76899 rd (US) |
| 10 R_p | 12639663.538 rd (US) |
| 20 R_p | 25279327.076 rd (US) |
| 50 R_p | 63198317.6899 rd (US) |
| 100 R_p | 126396635.38 rd (US) |
| 500 R_p | 631983176.899 rd (US) |
| 1000 R_p | 1263966353.8 rd (US) |
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.
Rod (Us Survey)
A U.S. survey rod is a unit of length equal to 16.5 U.S. survey feet.
History/Origin
The U.S. survey rod is based on the U.S. survey foot, which was slightly different from the international foot. The use of survey units was officially phased out in 2022.
Current Use
The U.S. survey rod was used for land surveying in the United States.
Frequently Asked Questions
What is 1 Earth's polar radius in rod (US survey)?
1 Earth's polar radius (R_p) = 1263966.3538 rod (US survey) (rd (US)).
How do you convert Earth's polar radius to rod (US survey)?
Multiply the Earth's polar radius value by 1263966.3538. For example, 25 R_p × 1263966.3538 = 31599158.8449 rd (US).
What is 10 Earth's polar radius in rod (US survey)?
10 R_p = 12639663.538 rd (US).
Which unit is larger, the Earth's polar radius or the rod (US survey)?
The Earth's polar radius is the larger unit: 1 R_p = 1263966.3538 rd (US).