Convert Earth equatorial radius to vara castellana 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.

Vara Castellana

The vara castellana is a traditional Spanish unit of length that was widely used in Spain and its former colonies. It is roughly equivalent to 0.8359 meters (about 32.9 inches).

The vara castellana was commonly used in land measurement, construction, and textiles. Its length could vary slightly by region and time, but the standardized vara castellana became an important reference for legal and commercial measurements.

Key points:

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  1 vara castellana ≈ 0.8359 meters (32.9 inches)

  
  
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  Used extensively in Spain and Spanish America

  
  
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  Common in land surveying, building, and textile measurement

  
  
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  Predecessor to modern metric units in Spanish-speaking countries

  
  

Though largely replaced by the metric system, the vara castellana remains relevant in historical documents and land records.