Convert Earth equatorial radius to link Online | Free Length Converter
Earth Equatorial Radius
The Earth's equatorial radius is the distance from the center of the Earth to the equator. It represents the Earth's radius measured along the equatorial plane.
Its value is approximately 6,378.1 kilometers (about 3,963.2 miles).
The Earth is not a perfect sphere but an oblate spheroid, so the equatorial radius is slightly larger than the polar radius.
This radius is important for geodesy, satellite orbits, and mapping.
Key facts:
Equatorial radius ≈ 6,378.1 km
Larger than polar radius due to Earth's flattening at the poles
Used in Earth sciences, navigation, and space missions
Understanding the Earth's equatorial radius helps in accurate modeling of the planet’s shape and gravitational field.
Link
A link is a traditional unit of length used primarily in land surveying. It is defined as exactly 7.92 inches or approximately 20.1168 centimeters.
The link originated from Gunter's chain, a 66-foot measuring device introduced in 1620 by English mathematician Edmund Gunter. This chain was divided into 100 equal parts, each measuring one link. The link became a standard unit in English-speaking countries for surveying and land measurement.
Key Facts:
1 link = 7.92 inches
1 link ≈ 20.1168 cm
25 links = 1 rod (16.5 feet)
100 links = 1 chain (66 feet)
1,000 links = 1 furlong (660 feet)
While the link has largely fallen out of general use, it remains a part of historical surveying practices and is still referenced in some legal and cadastral documents.
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