Convert mil to Earth equatorial radius Online | Free Length Converter

Mil

A mil is a unit of length commonly used in engineering and manufacturing to measure very small distances, especially thicknesses. It is equal to one-thousandth of an inch (0.001 inch), which is approximately 0.0254 millimeters.

The mil is widely used in industries like plastic film, coatings, wire diameter, and mechanical parts, where precise measurements of thin materials are necessary. It should not be confused with the millimeter, which is 0.001 meters or 1,000 microns — much larger than a mil.

Key points:

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  1 mil = 0.001 inch = 0.0254 mm

  
  
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  Used mainly for small thicknesses or diameters

  
  
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  Common in engineering, manufacturing, and material sciences

  
  
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  Not to be confused with millimeter (mm)

  
  

The mil remains an important unit in technical fields where fine measurement is critical.

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.