Convert Earths distance from sun to astronomical unit Online | Free Length Converter

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.

Astronomical Unit

An astronomical unit (AU) is a unit of distance used in astronomy to describe the average distance between the Earth and the Sun. It equals about 149.6 million kilometers (or about 93 million miles). The AU is useful for measuring distances within our solar system, such as the distance from Earth to other planets. For example, Mars is about 1.5 AU from the Sun. Using the AU makes it easier to understand and compare distances between planets without dealing with very large numbers. The symbol for astronomical unit is "AU".