Convert gigameter to Earths distance from sun Online | Free Length Converter

Gigameter

A gigameter (Gm) is a unit of length in the metric system, equal to 1 billion meters (1 Gm = 10⁹ meters). Gigameters are used to measure very large distances, often within the solar system. For example, the average distance from Earth to the Sun is about 150 gigameters, or 1 astronomical unit (AU). While not commonly used in everyday life, gigameters are helpful in astronomy and space science to describe distances between planets or other celestial bodies.

Earth’s Distance from the Sun

The average distance between the Earth and the Sun is known as an Astronomical Unit (AU).

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  It is approximately 149.6 million kilometers (about 93 million miles).

  
  
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  This distance varies slightly throughout the year because Earth’s orbit is elliptical—closest at perihelion (~147.1 million km) and farthest at aphelion (~152.1 million km).

  
  
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  The astronomical unit is a fundamental standard for measuring distances within our solar system.

  
  

Key facts:

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  Average distance ≈ 149.6 million km (1 AU)

  
  
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  Varies due to elliptical orbit

  
  
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  Basis for measuring planetary distances

  
  

Understanding Earth’s distance from the Sun is essential for studying seasons, climate, and orbital mechanics.