Convert Earth's Polar Radius (R⊕ (p)) to Rod (US Survey) (rd (US)) instantly.
Earth's Polar Radius to Rod (US Survey) conversion
1 Earth's Polar Radius (R⊕ (p)) = 1263971.3 Rod (US Survey) (rd (US)). To convert Earth's Polar Radius to Rod (US Survey), multiply the value by 1263971.3.
| Earth's Polar Radius (R⊕ (p)) | Rod (US Survey) (rd (US)) |
|---|---|
| 1 | 1263971.3 |
| 2 | 2527942.5 |
| 5 | 6319856.3 |
| 10 | 12639713 |
| 25 | 31599282 |
| 50 | 63198563 |
| 100 | 126397130 |
| 1000 | 1263971300 |
Frequently asked questions
How many Rod (US Survey) are in one Earth's Polar Radius?
One Earth's Polar Radius (R⊕ (p)) equals 1263971.3 Rod (US Survey) (rd (US)).
How do I convert Earth's Polar Radius to Rod (US Survey)?
To convert Earth's Polar Radius to Rod (US Survey), multiply the value by 1263971.3.
What is 10 Earth's Polar Radius in Rod (US Survey)?
10 Earth's Polar Radius = 12639713 Rod (US Survey).
About these units
Earth's Polar Radius (R⊕ (p))
The Earth's polar radius is approximately 6,356.8 km, slightly shorter than the equatorial radius due to the Earth's flattening at the poles. This measurement is critical in modeling Earth's shape, gravity field, and rotation. It impacts satellite orbits, geodetic surveys, and global positioning systems (GPS). The difference between the equatorial and polar radii also explains phenomena such as centrifugal force variations, equatorial bulges, and sea level differences across latitudes. Understanding R⊕ (p) is essential for precision navigation, Earth science, and astronomy.
Rod (US Survey) (rd (US))
The US Survey Rod equals 16.5 US Survey Feet (~5.0292 meters). Like the chain and furlong, it serves as a subdivision of larger units, maintaining consistency with historic Gunter-based measurements. Surveyors historically used rods to measure short distances, delineate boundaries, and calculate acreages. Its simple relationship to chains and furlongs made it practical for field measurements without complex arithmetic. Today, the US survey rod primarily appears in historical records, legal surveys, and when referencing pre-metric property data, providing continuity between older and modern surveying conventions.