Convert Earth's Equatorial Radius (R⊕) to Chain (US Survey) (ch (US)) instantly.
Earth's Equatorial Radius to Chain (US Survey) conversion
1 Earth's Equatorial Radius (R⊕) = 317055.76 Chain (US Survey) (ch (US)). To convert Earth's Equatorial Radius to Chain (US Survey), multiply the value by 317055.76.
| Earth's Equatorial Radius (R⊕) | Chain (US Survey) (ch (US)) |
|---|---|
| 1 | 317055.76 |
| 2 | 634111.51 |
| 5 | 1585278.8 |
| 10 | 3170557.6 |
| 25 | 7926393.9 |
| 50 | 15852788 |
| 100 | 31705576 |
| 1000 | 317055760 |
Frequently asked questions
How many Chain (US Survey) are in one Earth's Equatorial Radius?
One Earth's Equatorial Radius (R⊕) equals 317055.76 Chain (US Survey) (ch (US)).
How do I convert Earth's Equatorial Radius to Chain (US Survey)?
To convert Earth's Equatorial Radius to Chain (US Survey), multiply the value by 317055.76.
What is 10 Earth's Equatorial Radius in Chain (US Survey)?
10 Earth's Equatorial Radius = 3170557.6 Chain (US Survey).
About these units
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.
Chain (US Survey) (ch (US))
The US Survey Chain is defined as 66 US Survey Feet (~20.1168 meters), aligning with the historic Gunter's chain but adapted to the US survey foot. It is used primarily in cadastral surveys, property delineation, and historical land records. Surveyors employ the chain for practical measurements of fields, lots, and infrastructure layouts. The unit's subdivision into 100 links simplifies area calculation, as 10 square chains equal one acre, maintaining continuity with older surveying systems. Even today, engineers and surveyors working with legacy data encounter the US survey chain in historical deeds, maps, and legal descriptions. Its precision ensures consistency when reconciling pre-modern measurements with modern coordinates.