Convert Earth's polar radius to mile (US survey)
Please provide values below to convert Earth's polar radius [R_p] to mile (US survey) [mi (survey)], or Convert mile (US survey) to Earth's polar radius.
1 R_p = 3949.8948556 mi (survey). To convert Earth's polar radius to mile (US survey), multiply the value by 3949.8948556; to go the other way, divide by it (1 mi (survey) = 0.000253171296087 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 = 3949.8948556 mi (survey)
- 1 mi (survey) = 0.000253171296087 R_p
- 10 R_p = 39498.948556 mi (survey)
- 100 R_p = 394989.48556 mi (survey)
How to Convert Earth's Polar Radius to Mile (Us Survey)
1 R_p = 3949.894855603 mi (survey)
Example: convert 15 R_p to mi (survey):
15 R_p = 15 × 3949.894855603 mi (survey) = 59248.4228340449 mi (survey)
Earth's Polar Radius to Mile (Us Survey) Conversion Table
| Earth's polar radius | mile (US survey) |
|---|---|
| 1 R_p | 3949.8948556 mi (survey) |
| 2 R_p | 7899.78971121 mi (survey) |
| 3 R_p | 11849.6845668 mi (survey) |
| 5 R_p | 19749.474278 mi (survey) |
| 10 R_p | 39498.948556 mi (survey) |
| 20 R_p | 78997.8971121 mi (survey) |
| 50 R_p | 197494.74278 mi (survey) |
| 100 R_p | 394989.48556 mi (survey) |
| 500 R_p | 1974947.4278 mi (survey) |
| 1000 R_p | 3949894.8556 mi (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.
Mile (Us Survey)
The U.S. survey mile is a unit of length equal to 5,280 U.S. survey feet.
History/Origin
The U.S. survey foot was defined such that 1 meter is exactly 39.37 inches. This made the U.S. survey mile slightly longer than the international mile. The use of the survey foot was officially phased out in 2022.
Current Use
The U.S. survey mile was used for land surveying in the United States.
Frequently Asked Questions
What is 1 Earth's polar radius in mile (US survey)?
1 Earth's polar radius (R_p) = 3949.8948556 mile (US survey) (mi (survey)).
How do you convert Earth's polar radius to mile (US survey)?
Multiply the Earth's polar radius value by 3949.8948556. For example, 25 R_p × 3949.8948556 = 98747.3713901 mi (survey).
What is 10 Earth's polar radius in mile (US survey)?
10 R_p = 39498.948556 mi (survey).
Which unit is larger, the Earth's polar radius or the mile (US survey)?
The Earth's polar radius is the larger unit: 1 R_p = 3949.8948556 mi (survey).