Convert Chain (ch) to Earth's Equatorial Radius (R⊕) instantly.
Chain to Earth's Equatorial Radius conversion
1 Chain (ch) = 0.0000031540131 Earth's Equatorial Radius (R⊕). To convert Chain to Earth's Equatorial Radius, multiply the value by 0.0000031540131.
| Chain (ch) | Earth's Equatorial Radius (R⊕) |
|---|---|
| 1 | 0.0000031540131 |
| 2 | 0.0000063080261 |
| 5 | 0.000015770065 |
| 10 | 0.000031540131 |
| 25 | 0.000078850327 |
| 50 | 0.00015770065 |
| 100 | 0.00031540131 |
| 1000 | 0.0031540131 |
Frequently asked questions
How many Earth's Equatorial Radius are in one Chain?
One Chain (ch) equals 0.0000031540131 Earth's Equatorial Radius (R⊕).
How do I convert Chain to Earth's Equatorial Radius?
To convert Chain to Earth's Equatorial Radius, multiply the value by 0.0000031540131.
What is 10 Chain in Earth's Equatorial Radius?
10 Chain = 0.000031540131 Earth's Equatorial Radius.
About these units
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.
Earth's Equatorial Radius (R⊕)
The Earth's equatorial radius is approximately 6,378.1 km. This distance represents the radius measured along the equator, where Earth's rotational bulge makes it slightly larger than the polar radius. Geodesists, cartographers, and astronomers use the equatorial radius for mapping, satellite positioning, and calculating gravitational effects. It is fundamental to defining the shape of the Earth as an oblate spheroid rather than a perfect sphere. Precise knowledge of R⊕ enables accurate navigation, climate modeling, and orbital calculations, forming the basis for modern geodesy and Earth observation systems.