Convert Earth equatorial radius to pole 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.

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  Its value is approximately 6,378.1 kilometers (about 3,963.2 miles).

  
  
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  The Earth is not a perfect sphere but an oblate spheroid, so the equatorial radius is slightly larger than the polar radius.

  
  
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  This radius is important for geodesy, satellite orbits, and mapping.

  
  

Key facts:

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  Equatorial radius ≈ 6,378.1 km

  
  
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  Larger than polar radius due to Earth's flattening at the poles

  
  
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  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.

Pole

A pole is another traditional unit of length equivalent to a rod or perch. It measures exactly 16.5 feet, 5.5 yards, or about 5.0292 meters.

The pole has been used historically in land measurement and surveying, especially in England and the United States. Like the rod and perch, it helped standardize measurements of fields, plots, and boundaries before the adoption of metric units.

Key conversions:

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  1 pole = 16.5 feet

  
  
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  1 pole = 5.5 yards

  
  
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  1 pole ≈ 5.0292 meters

  
  
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  4 poles = 1 chain

  
  
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  40 poles = 1 furlong

  
  

Though largely replaced by modern units, the pole remains a notable term in historical surveying and land records.