How far away is the sun from earth in AU? Astronomy Our Solar System Components of the Solar System 1 Answer Ricardo A. Feb 21, 2016 1AU Explanation: The definition of the AU (Astronomical Unit) originally is the average distance from the Earth to the Sun. It has since been set to exactly to 149,597,870.7 kilometers or 92,975,680.98 miles (aprox. 93 million miles). Answer link Related questions How does the composition of our solar system compare to the composition of the universe? How are various bodies in the solar system similar and different? Does our solar system move through the universe like a cloud moves through the sky or are we... What is the solar system? What is the shape of the solar system and how is it maintained? What is the center of our solar system? What keeps the solar system in balance? Does our solar system have a name? Why is the solar system flat? What is the theory that explains how the solar system was formed? See all questions in Components of the Solar System Impact of this question 4373 views around the world You can reuse this answer Creative Commons License