Convert Earth's Polar Radius (R⊕ (p)) to Chain (ch) instantly.
Earth's Polar Radius to Chain conversion
1 Earth's Polar Radius (R⊕ (p)) = 315993.45 Chain (ch). To convert Earth's Polar Radius to Chain, multiply the value by 315993.45.
| Earth's Polar Radius (R⊕ (p)) | Chain (ch) |
|---|---|
| 1 | 315993.45 |
| 2 | 631986.9 |
| 5 | 1579967.2 |
| 10 | 3159934.5 |
| 25 | 7899836.2 |
| 50 | 15799672 |
| 100 | 31599345 |
| 1000 | 315993450 |
Frequently asked questions
How many Chain are in one Earth's Polar Radius?
One Earth's Polar Radius (R⊕ (p)) equals 315993.45 Chain (ch).
How do I convert Earth's Polar Radius to Chain?
To convert Earth's Polar Radius to Chain, multiply the value by 315993.45.
What is 10 Earth's Polar Radius in Chain?
10 Earth's Polar Radius = 3159934.5 Chain.
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.
Chain (ch)
A chain is equal to 66 feet or 4 rods, and it was standardized by surveyor Edmund Gunter in the 17th century. "Gunter's chain," consisting of 100 metal links, became the backbone of land surveying in the English-speaking world for centuries. Its convenience stems from simple arithmetic: 10 square chains make an acre, making land area calculations straightforward. Railroads, farmland, and city parcels across the United States and the Commonwealth nations were once laid out using chains, so the unit appears in countless historical records. Even today, some legal property descriptions still reference chain-based measurements, making the unit relevant for modern surveyors who interpret old maps. Although high-precision digital equipment has replaced physical chains, the unit's structural role in land division ensures its lasting importance.